СПОСОБ ПРЕДВАРИТЕЛЬНОГО НАГРЕВАНИЯ ТЕКУЧЕЙ СРЕДЫ ВЫШЕ ПО ПОТОКУ ОТНОСИТЕЛЬНО ПЕЧИ

Изобретение относится к области энергетики. Способ предварительного нагревания текучей среды (40) выше по потоку относительно печи посредством теплообмена с дымовыми газами (10), отводимыми из печи через канал (11), заключается в том, что жидкость или газообразная среда (31) проходит через камеру (20) с первым расходом; дымовые газы (10) в канале (11) нагревают среду (31) в камере (20) посредством теплообмена через первую стенку (21), отделяющую среду (31) в камере (20) от дымовых газов (10) в канале (11), при этом получают нагретую среду (32); текучая среда (40) проходит через по меньшей мере один трубопровод (41) со вторым расходом, причем по меньшей мере один трубопровод (41) имеет вторую стенку, отделяющую текучую среду (40) внутри по меньшей мере одного трубопровода (41) от среды (31) внутри камеры (20); среда (31), нагретая в камере (20), предварительно нагревает текучую среду (40) в по меньшей мере одном трубопроводе (41) посредством теплообмена через вторую стенку, при этом получают ...

УСТРОЙСТВО ДЛЯ ОТВОДА ТЕПЛА ОТ ТЕПЛОВЫДЕЛЯЮЩИХ СИСТЕМ (ВАРИАНТЫ)

Изобретение относится к радиотехнике и может быть использовано в системах охлаждения тепловыделяющих блоков радиоэлектронной аппаратуры. Устройство содержит соединенные между собой посредством двух теплоизолированных трубок теплоизолированные испарительную камеру с теплоносителем и камеру конденсации, испарительная камера выполнена с возможностью отвода тепла от тепловыделяющих систем и установлена ниже камеры конденсации, одна из теплоизолированных трубок выполнена с возможностью транспортировки пара от испарительной камеры к камере конденсации, а вторая - с возможностью транспортировки жидкости от камеры конденсации к испарительной камере. Устройство снабжено дополнительной камерой, гидромотором, установленным на первой теплоизолированной трубке, регулировочный вентиль выполнен с возможностью подключения дополнительной камеры к камере конденсации. Теплоноситель состоит из, по меньшей мере, двух не смешиваемых и химически не взаимодействующих жидких компонентов, один из которых является ...

СПОСОБ И СИСТЕМА ОХЛАЖДЕНИЯ УСТРОЙСТВ ИЛИ ИХ КОМПОНЕНТОВ

... 1. Способ охлаждения электронных устройств, включающий в себя следующие операции: активное охлаждение электронного устройства с использованием первого отводящего теплоту элемента охлаждения; создание температурного градиента в тепловой трубе за счет активного пропускания теплоты с горячей стороны первого отводящего теплоту элемента охлаждения на холодную сторону второго отводящего теплоту элемента охлаждения, с использованием тепловой трубы, и отвод теплоты с горячей стороны второго отводящего теплоту элемента охлаждения, связанного с первичным стоком теплоты.2. Способ по п.1, в котором активное охлаждение электронного устройства дополнительно предусматривает охлаждение при помощи теплового коллектора, термически связанного с холодной стороной первого отводящего теплоту элемента охлаждения.3. Способ по п.1, в котором отвод теплоты с горячей стороны второго отводящего теплоту элемента охлаждения, связанного с первичным стоком теплоты, дополнительно предусматривает отвод теплоты с горячей ...

СИСТЕМА РЕКУПЕРАЦИИ ТЕПЛОТЫ ОТРАБОТАВШИХ ГАЗОВ

Изобретение относится к системе рекуперации теплоты отработавших газов. Сущность изобретения: система (18) рекуперации теплоты отработавших газов включает в себя первую и вторую петлеобразные тепловые трубки (20 и 30). Первая петлеобразная тепловая трубка (20) поглощает теплоту отработавших газов в выпускном канале (4) двигателя (1) внутреннего сгорания с нижней по потоку стороны от первого каталитического нейтрализатора (5) и обеспечивает теплообмен с первым каталитическим нейтрализатором (5). Вторая петлеобразная тепловая трубка (30) поглощает теплоту каталитического нейтрализатора (5) и обеспечивает теплообмен с хладагентом, подаваемым из двигателя (1) внутреннего сгорания. Техническим результатом изобретения является эффективное повышение температуры каталитического нейтрализатора, закрепленного на двигателе внутреннего сгорания, эффективное повышение температуры хладагента двигателя внутреннего сгорания. 19 з.п. ф-лы, 11 ил.

Пульсирующая тепловая труба

"Регулируемая тепловая труба

Тепловая труба

Kühlkreislauf für den schwerelosen Raum

Heat radiation device with heat pipe for energy storage battery apparatus e.g. using sodium-sulphur battery

The heat radiation device has a heat pipe (20) with an evaporation section (22), a condensation section (24) and a gas reservoir (25) which is continuously connected and made in one piece. The heat pipe contains an internal working fluid and a non-condensing gas. It is made with a capillary section in at least one inner part of the evaporation section in which the working fluid moves.

ANORDNUNG EINES ELEKTRISCHEN BAUELEMENTS UND EINER ZWEI-PHASEN-KÜHLVORRICHTUNG UND VERFAHREN ZUM HERSTELLEN DER ANORDNUNG

Abgaswärme-Wiedergewinnungseinrichtung

Abgaswärme-Wiedergewinnungseinrichtung, umfassend: einen Verdampfer (110) zum Verdampfen von darin abgeschlossenem Arbeitsmedium durch Abwärme aus einem Verbrennungsmotor (10); einen Kondensor (130) zum Kühlen des an dem Verdampfer (110) verdampften Arbeitsmediums durch Kühlmittel des Verbrennungsmotors (10); einen Kommunikationsabschnitt (115, 135) zum kommunizierenden Verbinden des Verdampfers (110) mit dem Kondensor (130) in einer Ringform; ein Innendruck-Betriebsventil (150), das dazu ausgelegt ist, geschlossen zu werden, wenn ein Druck des Arbeitsmediums gleich oder größer einem vorbestimmten Druck ist; und ein Temperatur-Betriebsventil (160), das dazu ausgelegt ist, geschlossen zu werden, wann eine Temperatur des Kühlmittels gleich oder größer einer vorbestimmten Temperatur ist, wobei das Innendruck-Betriebsventil (150) und das Temperatur-Betriebsventil (160) zwischen einer stromabwärtigen Seite des Kondensors (130) und einer stromaufwärtigen Seite des Verdampfers (110) in dem Kommunikationsabschnitt ...

A control valve or metering device

In a distillation system wherein distillate collects in a container 41, Fig. 7, the removal of non-condensible gases contaminating the distilled vapour is controlled by a valve 411 subjected to the partial pressure of these gases. The gases plus some uncondensed vapour passing the valve enter a rectifier 40 wherein the vapour condenses and the gases pass into a chamber 43 containing a float supported by the condensate and operating a valve. The gases depress the liquid level in the rectifier 40 and the chamber 43 to open the float valve and pass into a pipe 42 leading to atmosphere or to other condensers operating at lower temperatures whereby a number of fractions may be collected from the distillate. The valve 411 comprises a vessel 419, Fig. 8, movable relatively to pipes 417, 418 respectively leading to and from the rectifier, and supported by a sealed bellows 426 containing a small quantity of distillate. Condensate from the rectifier overflows ...

POWER STORAGE BATTERY

AN EVAPORATION PIPE FOR A HEAT EXCHANGER

Heat pipe for a solar collector

A heat pipe 2 comprises an evaporator section 5 comprising a radiation absorbing plate (6, fig.2), for absorbing solar radiation, and a portion of an elongate tube (7, fig.2) containing a working fluid, in thermal contact with the radiation absorbing plate, and an evacuated radiation transparent enclosure (8, fig.2). The heat pipe includes a condenser section 10 at a distal end of the elongate tube remote from the evaporator section. To achieve a desired temperature limitation of the working fluid within the condenser section, a flow control valve 20, comprising a valve head 22 and a valve seat 24, is provided between the evaporator section and the condenser section to selectively close communication between the sections when the temperature within the condenser section exceeds a predetermined maximum value. Preferably, a temperature sensitive member, in the form of a coil of memory metal 34' or bimetallic discs (34'', fig.7), acts to urge the valve head towards the valve seat to close ...

Heat pipe for a solar collector

Cooling apparatus,systems,and methods

Apparatus and systems, as well as methods and articles, may operate to actively cool an electronic device using a first heat removing cooling element, and to induce a thermal gradient in a heat pipe by conducting heat from a hot side of the first heat removing cooling element to a cold side of a second heat removing cooling element using the heat pipe. The heat pipe may comprise a variable conductance heat pipe. The apparatus and system may operate in a downhole environment, including logging and drilling operations.

EVAPORATIVE COOLING SYSTEM

Heat pipe for a solar collector

Heat exchangers incorporating heat pipes

A heat exchanger comprising two spaces (1,2) disposed one above the other, the upper space and the lower space being intended respectively for the circulation of a cold fluid and a hot fluid. A series of tubes (3) extend partly into each of the two spaces but do not communicate with them, each of the tubes (3) containing a heat-bearing liquid and an inert gas, the amount of said liquid and said gas being such that at the desired operating temperature, on the one hand, there remains in the tube a certain amount of non-vaporized liquid and, on the other hand, the volume taken up by the inert gas is less than the volume of the tube contained in the upper space through which the cold fluid passes. In operation, the liquid which is found in the lower portion of a tube (3) vaporizes under the action of the hot fluid; the vapour formed in the upper part of the tube is cooled by the cold fluid, pushing inert gas back upwards. The vapour condenses, thus heating the cold fluid and falling down in ...

Structure, and method for manufacturing same

ISOLATION HOLLOW BODY FOR A WITH HIGH VOLTAGE LOADABLE COOLING SECTION

PASSIVE CAPILLARY-PUMPED DIPHASI LIQUID CIRCLE WARMING OF YOU EQUIPMENT WITH THERMAL OUTPUT

HEAT PIPE DEVICE

ERDWARMESONDE

The geothermal probe has a heat pipe (1) closed at the bottom, for receiving a two-phase heat transfer medium e.g. carbon dioxide, and a heat exchanger (6) serving as a condenser for the heat transfer medium. An upper end piece (2) of the heat pipe that penetrates into a base (3) of a heat exchanger housing (4) includes passage openings (7) for a heat transfer medium condensate in a region of the housing base. The upper end piece of the heat pipe has a stopper (8) actuated by an actuator (10), where the stopper is formed as a valve for closing the passage openings.

Adjustable heat pipe

Device for heating or cooling of areas under utilization of solar radiation

Energy efficient adsorption system

HEAT TRANSPORT DEVICE

REFRIGERATOR

A refrigerator comprising a freezing compartment and a refrigerating compartment which refrigerator is provided with a primary refrigerating system containing a refrigerant with a primary evaporator disposed in the freezing compartment, and a secondary refrigerating system which also contains a refrigerant with a secondary evaporator disposed in the refrigerating compartment, and a secondary condensor which is in heat-exchanging contact with the primary evaporator, which condensor has a condensation wall on whose surface the refrigerant condenses during operation, means being provided for varying the available condensation wall area, so as to control the temperature of the secondary evaporator. Preferably, the secondary condensor is provided with a reservoir containing a control gas, which during operation constitutes an interface with the refrigerant vapour at the location of the condensation wall the interface being movable along the condensation wall with the aid of a reversible control ...

THERMALLY STABILIZED HEAT TRANSFER DEVICE

AUTOMATIC ICE MAKER UTILIZING HEAT PIPE

An automatic ice maker includes a heat pipe in the form of a sealed tube containing a refrigerant which extends from the freezer compartment to the fresh food compartment of a household refrigerator. Positioned within the heat pipe and located intermediate the freezer and fresh food compartment is a valve preferably in the form of a steel ball which is periodically unseated from an annular valve seat by a rotating magnet actuator mechanism. The portion of the heat pipe within the fresh food compartment is positioned within a water reservoir and is also insulated but for an ice-making surface thereof. When the check valve of the heat pipe is open, heat transfer thereto to the freezer compartment is enhanced to cause a clear ice cube to be formed on the uninsulated ice-making surface of the submersed heat pipe. When the check valve closes, the heat of the surrounding water will harvest the ice cube by releasing same to float to the top of the reservoir for collection and storage by conventional ...

Anordnung zum Stabilisieren der Temperatur einer geheizten Fläche

Wärmerohr

Wärmetransportvorrichtung

Wärmetransportvorrichtung

INSTALLATION FOR HEATING A LIQUID.

Domestic heating system with a heat pump.

Dans une installation (1) de chauffage domestique fonctionnant avec une pompe à chaleur (6), un caloduc (7) sétendant des gaz chauds en sortie du compresseur (6a) vers un autre récepteur thermique permet de prélever aux gaz chauds une partie de leur énergie et dainsi réaliser un chauffage de plus haute température sans pour autant grever lefficacité énergétique globale de linstallation.

Stationary heating installation for building, has heat pipe coupling heat pump with thermal receiver in manner to extract calories of hot gas output from compressor of heat pump and transmitting calories of hot gas to thermal receiver

The installation has a heat pipe (7) coupling a heat pump (6) with a thermal receiver (1) e.g. hot water receiver, in a manner to extract calories of hot gas output from a compressor of the heat pump and transmitting the calories of hot gas to the thermal receiver. The heat pipe is thermally insulated with respect to exterior. A nozzle is connected on the heat pipe, and the water reservoir is equipped with an immerged exchanger (12).

Variable conductance heat pipe

According to the invention, irrespective of conditions of the variable conductance heat pipe during storage, transportation and installation, the stable actuation and stable operation thereof can be obtained. A variable conductance heat pipe is provided. The variable conductance heat pipe includes a sealed container in which a working fluid and a noncondensable gas are sealed, the sealed container extending in an axial direction. The sealed container includes one end to be connected to a heating source and a part to be connected to a heat sink. On a cross section of the sealed container alonga direction orthogonal to the axial direction, a portion having water conveying property better than other portions is provided. The portion having the better water conveying property extends in the axial direction.

SYSTEME DE REFROIDISSEMENT A AIR POUR ARMOIRE CONTENANT DES CIRCUITS ELECTRONIQUES

SYSTEME DE REFROIDISSEMENT A AIR POUR ARMOIRE CONTENANT DES CIRCUITS ELECTRONIQUES. POUR EVITER UNE TROP GRANDE ELEVATION DE TEMPERATURE DU FLUX D'AIR D'UN GROUPE 2.1, 2.2, 2.3 DE CIRCUITS A L'AUTRE, DES ECHANGEURS 5.1, 5.2, 5.3 DE CHALEUR (MODULES DE REFROIDISSEMENT) SONT INSERES ENTRE LES DIFFERENTS GROUPES DE CIRCUITS. CES ECHANGEURS SONT MAINTENUS A UNE TEMPERATURE CONSTANTE GRACE A L'UTILISATION D'UN CALODUC 51 MUNI D'AILETTES PLACEES DANS LE FLUX D'AIR. L'AIR PARCOURT A L'INTERIEUR DE L'ARMOIRE, OU A L'INTERIEUR DE PLUSIEURS ARMOIRES, UN CIRCUIT FERME, CE QUI EVITE D'UTILISER DES MOYENS DE DESYDRATATION DE L'AIR AMBIANT.

HEATING SYSTEM

HEAT TRANSFER DEVICE COMPRISING A HOLLOW PANEL WITH CONTROLLABLE AND ADJUSTABLE HEAT TRANSMISSIBILITY

Sealed tube heat exchanger - modified to avoid entrainment of liquid transfer medium during vaporization

Seat heating system for air-cooled IC engine vehicle - uses cooling air to heat finned heat exchanger having electrically driven fan blowing fresh air through fins

Electronic circuit cooling device - has expansion chamber and non-return valve to prevent air from being drawn into refrigerant vessel

산업적 적용을 위한 열 포집, 전달 및 방출

... 본 발명의 실시예들은 열 손실을 최소화하면서 장거리에 걸쳐서 -40℃ 내지 1,300℃의 온도 범위에서 열 전달을 위한 시스템 및 방법을 제공한다. 시스템은 시추공 내부 또는 산업 플랜트 위의 수평 거리에 적합하고, 물, CO2, 또는 증기 주입을 요구하는 열을 효과적으로 전달하고 수년 동안 사용자 개입없이 동작하도록 구성된 고급 히트 파이프로 이루어진다.

INSTALLATION PERMETTANT LE TRANSPORT DE CHALEUR

VERMEVEXLARE

TWO-PHASE HEAT TRANSFER WITHOUT DE-GASSING

L'invention concerne un appareil convenant au transfert de chaleur en deux phases, dans lequel des fluides volatils, tels que des composés organiques halogénés volatils peuvent être utilisés comme fluides caloporteurs sans dégazage initial ou sans qu'il soit nécessaire de maintenir l'appareil/le système à l'état dégazé. L'appareil est, de préférence, du type à automodulation. Il comporte une source de chaleur (30), un évaporateur (32), un condensateur (36), une source de froid (37) et un détendeur (38) conçu pour maintenir une pression de fonctionnement constante et une température constante de la source de chaleur (30).

Thermal actuated switchable heat pipe

A thermal actuated switchable heat pipe 10 for use in a passenger compartment heating system of an automotive vehicle. The invention 10 includes a condenser 12, an evaporator, 14 vapor and fluid flow paths 16 and 18 therebetween and a working fluid 20 disposed therein. A thermostat 46 is mounted between the condenser 12 and the evaporator 14 for controlling the flow of fluid 20 therebetween. In a specific embodiment, the condenser 12 is in thermal contact with the engine coolant of the vehicle and the evaporator 14 is in thermal contact with the exhaust of the vehicle. The thermostat 46 is in thermal contact with the engine cooling system and is adapted to block the flow of fluid 20 in the fluid flow path 18 in response to the temperature thereof.

Spray cooling system with cooling regime detection

A cooling system for cooling one or more components that produce heat. The cooling system includes sprayers configured to spray cooling fluid toward the components. A detection system includes a radiation source and a radiation sensor that pass radiant energy in the vicinity of the component such that the radiant energy is affected by passing through the vaporizing spray coolant. A controller controls the flow rates of the sprayers in response to levels of radiant energy detected by the radiation sensor, allowing the controller to more accurately control the wall temperature and cooling regime achieved by the spray cooling. The source and sensor are aimable or otherwise configured for gathering information for different thermal zones of the component, providing the controller with information that is helpful in separately controlling the wall temperature and/or cooling regime in each zone.

Thermal switch

A sealed extensible bellows containing freon and a flexible wick provide a heat pipe, and fixed end of which is attached to a heat sink (a cold body), the other movable end of the bellows carries a thermally conductive plate that moves from a nonengaging relationship to an engaging relationship with a temperature regulated surface at a predetermined temperature of the cold body.

METHOD AND SYSTEM FOR STABILIZING LOOP HEAT PIPE OPERATION WITH A CONTROLLABLE CONDENSER BYPASS

A system and method of stabilizing operation of loop heat pipes with a controllable small inner diameter tubing bypassing LHP condenser thereby stabilizing LHP thermal operation by removing thermal-fluid oscillations. Controllability of such condenser bypass stabilizing function, can be achieved by applying a very low auxiliary power (heating or cooling) to the bypass tubing and/or to the liquid return line, without utilizing any moving parts in the LHP system. Moreover, such system with a small gas-loaded heat pipe used as a thermal strap to cool the condenser bypass housing can potentially operate in a completely autonomous manner. 1. A method of stabilizing a loop heat pipe (LHP) operation , the method comprising:arranging a portion of vapor flow at a condenser inlet to bypass a condenser;arranging the portion to freely and continuously flow into a liquid return line at an outlet of the condenser; andadditionally warming liquid inside the liquid return line by utilizing a heater.2. The method of claim 1 , further comprising:the portion of the vapor flow at the condenser inlet bypassing only a portion of the condenser length; andthe portion of the vapor flow flowing into the remaining portion of the condenser upstream of condensed fluid flow exiting from the condenser into the liquid return line at the condenser outlet,wherein the vapor flow in the bypass tubing additionally elevates temperature of the condensed fluid at the condenser outlet.3. The method of claim 1 , further comprising:the portion of the vapor flowing from a middle of the condenser bypassing an upstream portion of the condenser length; andthe portion of the vapor flowing into the liquid return line at the condenser outlet where the vapor flow in the bypass tubing additionally elevates temperature of the condensed fluid at the condenser outlet.4. The method of claim 1 , further comprising:adjusting the vapor flow of the condenser bypass, thereby altering fluid flow quality and mass flow rate in ...

Cooling systems comprising passively and actively expandable vapor chambers for cooling power semiconductor devices

A cooling system that includes an expandable vapor chamber having a condenser side opposite an evaporator side, a condenser side wick coupled to a condenser side wall, an evaporator side wick coupled to an evaporator side wall, and a vapor core positioned between the evaporator side wick and the condenser side wick. The cooling system also includes a vapor pressure sensor communicatively coupled to a controller and a bellow actuator disposed in the vapor core and communicatively coupled to the controller. The bellow actuator is expandable based on a vapor pressure measurement of the vapor pressure sensor.

A COOLING SYSTEM WITH A BUBBLE PUMP

System for heating interior spaces of engine-driven vehicles

A heat pipe (2) provided with a vaporizable working fluid is utilized to transfer heat from exhaust gas flowing through the exhaust pipe (1) of an engine (E) driving a vehicle to air flowing through an air duct (4) to an interior space (S) to be heated in the vehicle. The heat pipe (2) has a loop return pipe (9) for returning condensed fluid to a heat absorption part (2a) of the pipe and a control valve (10) in the return pipe for controlling the flow of returning fluid, the control valve (10) being controllable manually or automatically by a temperature control system including a sensor (18) in the air duct (4), a control circuit (17), and a solenoid valve actuator (14).

LOW TEMPERATURE STORAGE CHAMBER

PURPOSE: To prevent the occurrence of supercooling under a meteorological condition, e.g. an abnormal low temperature, by a method wherein a number of heat pipes each having a vaporizing part in soil around a storage space built in a ground are formed into a variable conductance type heat pipe sealed with working fluid and having the inner condensing part side sealed with non- condensing gas. CONSTITUTION: A variable conductance type heat pipe 14 has a vaporizing part 14a embedding in soil around a storage space built in a ground and a number of the heat pipes are provided in a state that a condensing part 14b is extended to a ground and exposed in the open ari. Since the temperature of the open air is lowered and the temperature of the heat pipe 14 is lowered, the steam pressure of working fluid 15 is also reduced. As a result, the volume of sealed non-condensing gas 16 is increased, the effective length of the condensing part 14b is shortened (a heat transfer area is reduced), heat conveying ...

Испаритель

Изобретение относится к теплотехнике и может быть использовано преимущественно в системах охлаждения тепловыделяющих приборов ракетно-космического применения. Корпус испарителя выполнен в виде плоского основания и кожуха с расположенными на противоположных боковых стенках заправочным и пароотводящим штуцерами. Во внутреннем объеме кожуха выполнены продольные ребра с отверстиями, жестко контактирующие с капиллярно-пористой насадкой, а паровым коллектором является объем, ограниченный ближним к боковой стенке крышки кожуха с пароотводящим штуцером сплошным ребром с этой боковой стенкой. Капиллярно-пористая насадка выполнена в виде двухслойной сетки, состоящей из спеченных внутреннего и внешнего слоев. Внутренний слой сетки выполнен из многослойного мелкоячеистого сетчатого материала, а внешний слой выполнен из крупноячеистой сетки, сопряженной с внутренней нагреваемой поверхностью основания. Во внутренних межреберных полостях кожуха расположена крупнопористая насадка в виде металлического ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ТЕПЛОПЕРЕДАЧИ

Изобретение относится к области теплотехники и может быть использовано для передачи большого количества тепла при малых перепадах (градиентах) температуры на большие расстояния. Устройство теплопередачи, содержащее: источник тепловой энергии; по меньшей мере одну или более емкость (1) испарителя, соединенную трубопроводом (2) с одним или более конденсатором (3), накопительную емкость (5), соединенную трубопроводом (4) с одним или более конденсатором (3), при этом одна или более накопительная емкость (5) соединена с одной или более емкостью (1) испарителя одним или более возвратным трубопроводом (6), на котором установлено запорное устройство (7); средство контроля уровня жидкой фазы первого компонента многокомпонентной первой текучей среды и второго компонента многокомпонентной первой текучей среды в накопительной емкости (5) для управления доступом парообразной фазы первого компонента многокомпонентной первой текучей среды из емкости (1) испарителя в накопительную емкость (5) по одному ...

ТЕРМОСИФОН ПЕРЕМЕННОЙ ПРОВОДИМОСТИ

... 1. Система (2) охлаждения, содержащая, по меньшей мере, один термосифон (3) с, по меньшей мере, одним внутренним испарителем (4), выполненным c возможностью испарения жидкого холодильного агента, и соединенным с обеспечением теплопроводности с внутренними охлаждающими ребрами (6), и внутренний испаритель (4) посредством первого трубопровода (8) соединен с, по меньшей мере, одним наружным конденсатором (10), при этом первый трубопровод (8) пропускает испарившийся холодильный агент из испарителя (4) к наружному конденсатору (10), который соединен с обеспечением теплопроводности с наружными охлаждающими ребрами (12) для охлаждения наружного конденсатора (10), и наружный конденсатор (10) расположен на определенном расстоянии (14) в вертикальном направлении относительно внутреннего испарителя (4) для использования силы тяжести для создания потока жидкого холодильного агента из наружного конденсатора (10) через второй трубопровод (16) обратно во внутренний испаритель (4), отличающаяся тем, что ...

Переключатель теплового потока

Регулируемая тепловая труба

Вставка теплообменной трубы

... 1. ВСТАВКА ТЕПЛООБМЕННОЙ ТРУБЫ, состоящая из сочлененных-между собой меньшими основаниями конфузорного и диффузорного участков и имеющая отверстия на боковой поверхности , о т л :И ч а ю щ а я с я тем что, с целью интенсификации теплообмена , отверстия выполнены на конфузорном участке вставки, а диаметр большего основания ее диффузорного участка меньше внутреннего диаметра трубы. : 2. Вставка по п.1, отли ч ающ а я с я тем, что наружная кромка конфузорного участка выполнена с вырезами , размеченными по винтовс ли .нии. 3, Вставка по пп. 1 и 2, отличающаяся тем, что отверстия выполнены о диаметром, увеличивающимся в исшравлении от меньшего к боль- шему основанию конфузорного участка, fi.

Цилиндр для обработки полотна

Abgaswärme-Rückgewinnungssystem

Bei einem Abgaswärme-Rückgewinnungssystem für eine Brennkraftmaschine umfasst ein Wärmerohr (20) einen Verdampferteil (21), in welchem ein Arbeitsfluid erwärmt und durch Wärmeaustausch mit dem Abgas aus der Brennkraftmaschine verdampft wird, eine Vielzahl kondensierender Teile (31, 32), in denen das Arbeitsfluid aus dem Verdampferteil durch Wärmeaustausch mit jeweiligen zu erwärmenden Gegenständen gekühlt und kondensiert wird, und ein verbindendes Rohrleitungssystem (25, 26, 27, 33, 34, 35), über welches die kondensierenden Teile mit dem Verdampferteil parallel zum Verdampferteil verbunden sind, so dass ein geschlossener Kreis gebildet wird. Weiterhin ist ein Schaltteil (28) so positioniert, dass er eine Strömung des Arbeitsfluids vom Verdampferteil auf irgend einen aus den kondensierenden Teilen schaltet.

AUFBAU EINER WAERMEROHRSCHLEIFE

Anordnung mit einem Waermerohr

Wärmespeichersystem, Wärmespeicherbehälter, den Wärmespeicherbehälter verwendende Wärmespeichervorrichtung und die Wärmespeichervorrichtung verwendende Wärmevorrichtung

Bereitgestellt sind ein Wärmespeichersystem, ein Wärmespeicherbehälter, eine den Wärmespeicherbehälter verwendende Wärmespeichervorrichtung, durch die mittels einer einfachen Struktur die erzeugte Wärmemenge und Wärmetransportmenge verbessert werden können. Das Wärmespeichersystem verwendet einen Wärmespeicherbehälter, der aufweist: einen rohrförmigen Körper, ein in dem rohrförmigen Körper aufgenommenes adsorbierendes Material, das durch die Adsorption einer zu adsorbierenden Substanz Wärme erzeugt und durch die Eliminierung der adsorbierten Substanz Wärme aufnimmt, und einen Strömungsweg aufweist, der durch den rohrförmigen Körper in Längsachsenrichtung hindurchführt. In dem System aufgenommen ist eine Diffusionsschicht zum Transportieren der zu adsorbierenden Substanz in der flüssigen Phase von dem Strömungsweg zu dem adsorbierenden Material; die zu adsorbierende Substanz wird transportiert zu dem Strömungsweg; die zu adsorbierende Substanz wird transportiert in die Diffusionsschicht, ...

Multi-mode heat transfer using a thermal heat pipe valve

HEAT EXCHANGER

CONTROLLABLE HEAT PIPE

... 1392740 Heat exchangers BETEILIGUNGS AG FUR HAUSTECHNIK 7 July 1972 [26 July 1971] 31895/72 Heading F4U The interior of a heat pipe or Perkins tube communicates by a line 4 with the interior of an auxiliary hollow body 10 which is in thermal contact with a heat sink 6. The sink can withdraw heat from the body at a controlled rate so as to control the rate of heat transfer of the pipe or tube. The heat sink may be a Peltier element having a change-over switch 7 to supply reversible direct current and control is exercised by alternately heating and cooling the body 10, heating being effected by air, an electric resistance heating element (not shown), or changing the polarity of the switch 7. The body 10 (Fig. 2, not shown), includes a plurality of containers for containing any condensed fluid medium and a Peltier and a heating element is arranged below either end of the body so as to condense or evaporate variable quantities of the medium.

Adjustable heat pipe

HIGH VOLTAGE CIRCUIT-BREAKER WITH COOLING

WAERMEAUSTAUSCHER MIT ZWEI UEBEREINANDER ANGE- ORDNETEN KANAELEN, VON DENEN DER UNTERE DAS WARME UND DER OBERE DAS KALTE STROEMUNGSGUT FUEHRT

HEAT EXCHANGERS WITH TWO UEBEREINANDER ANGE ARRANGED CHANNELS, FROM THOSE THE LOWER WARM AND THE UPPER COLD FLOW PROPERTY FUEHRT

AIR CONDITIONING SYSTEM FOR BUILDINGS

AIR CONDITIONING SYSTEM FOR BUILDINGS

Apparatus and method for cooling a super conducting machine

The present invention relates to an apparatus and a method for cooling a super conducting machine (2), in which apparatus and method at least two condenser areas (18, 18',18'') each make thermal contact with a cold head (16, 16', 16''), and in which the at least two condenser areas (18, 18', 18'') each have a connecting line (20, 20', 20''), via which the at least two condenser areas (18, 18', 18'') are connected fluidically to an evaporator area (12). A liquid cooling fluid k can be moved or pumped from at least one condenser area (18, 18', 18'') into the evaporator area (12) by means of a temperature difference, and a pressure difference associated therewith, in the at least two condenser areas (18, 18', 18'').

Active/Passive Cooling System

Abstract A cooling assembly includes an evaporator containing a primary cooling medium, a passive condenser, and a heat exchanger. When a secondary cooling medium is provided to the heat exchanger, the primary cooling medium in the gas phase switches from being received by the passive condenser to the heat exchanger without operating any valves located between the evaporator and the passive condenser and between the evaporator and the heat exchanger. The primary cooling medium circulates between the evaporator and the passive condenser and between the evaporator and the heat exchanger by natural circulation and gravity without a pump in the flow path of the primary cooling medium between the heat exchanger and the evaporator and between the passive condenser and the evaporator to circulate the primary cooling medium.

Phase transformation heat exchange device

A phase transformation heat exchange device (1) is provided with an inner tube (2), an outer tube (3) and a heat exchange medium (4). A liquid phase region is formed in all or part of the space between the two inner and outer tubes (2, 3). A vaporization region is formed in all or part of the space inside the inner tube (2). The heat exchange medium (4) of relatively high pressure inside the liquid phase region is heated in vortex flow and enters the vaporization region of relatively low pressure, and then, flows out of the phase transformation heat exchange device (1) after being vapored, thereby the heat exchange is completed. The device which can be applied to DSG systems of the solar photothermal field, and to an input-output system of a heat storage system or the field of heating with a boiler, is achieved with safe operation, low cost, and good application range.

HEAT TRANSFER PIPE WITH CONTROL

FUEL PROCESSORS UTILIZING HEAT PIPE COOLING

An apparatus for carrying out a process of converting hydrocarbon fuel to a hydrogen rich gas utilizes heat pipes (504) to control the temperatures of the reactor beds (502), manage heat and integrate the heat management in a simple and efficient manner.

HEAT TRANSPORT DEVICE

BUILDING HEATING OR COOLING APPARATUS

MAGNETIC REFRIGERATOR

A magnetic refrigerator comprises a working material radiating heat when a magnetic field is applied thereto and absorbing heat when the magnetic field is removed therefrom, and magnetic coil which is movable for selectively applying or removing the magnetic field to or from the working material. Directional heat pipes are disposed between the working material and an object of cooling, whereby heat from the object of cooling is transmitted to the working material when the working material absorbs the heat, and whereby heat from the working material is prevented from being transmitted to the object of cooling when the working material radiates the heat.

TEMPERATURE GRADIENT FURNACE FOR MATERIALS PROCESSING

... 12 Title of the Invention: TEMPERATURE GRADIENT FURNACE FOR MATERIALS PROCESSING Inventors: Robert Haslett and William Harwell A cylindrically hollow segmented thermal gradient furnace enclosing metal or semiconductor material wherein each segment includes a heater for raising the temperature of the metal. The material is encircled by a heat pipe which is coupled to a heat exchanger for rapidly cooling a corresponding segment of the material after the heater has performed a thermal soak of the material. A reservoir is filled with inert gas which is selectively expanded to block cooling at the heat exchanger when the heater is turned on and compressed to allow cooling at the exchanger when the heater is turned off so that a sharp thermal gradient may be established along the length of the material.

HEAT EXCHANGER

A heat exchanger for exchanging heat between first and second duct portions of a ventilation system includes first and second heat pipe portions in the first and second duct portions, respectively. Each heat pipe portion can be a heat pipe subassembly including one or more vertical heat pipes fluidly coupled to top and bottom headers, which are respectively connected to the top and bottom headers of the other subassembly to form a refrigerant loop. One or more flow restrictors can block air flow through a respective section of the first or second duct portion. The blocked section can be operatively aligned with a segment of the respective heat pipe portion along which there is a low probability of refrigerant phase change. Each flow restrictor can be an adjustable damper. The damper(s) can be selectively opened and closed as the ventilation system switches between heating and cooling modes.

HEATING SYSTEM FOR CONVEYOR PIPES

A long heating pipe is laid along a conveyor pipe and in contact with the outer surface thereof. The heating pipe is provided with an outer tube which has an operating fluid hermetically contained therein, and a steam tube which is inserted through the outer tube. A container is provided to accumulate condensation created as a result of the liquefaction of vapor fed through the steam tube of the heating pipe. This container has a temperature sensing valve located therein. The temperature sensing valve is closed if the condensation within the container more rises in temperature than predetermined, and this valve is opened if the condensation within the container more decreases in temperature than predetermined. This temperature sensing valve is communicatively connected to the downstream side end portion of the steam tube of the heating pipe, which is inserted into the container.

VARIABLE CONDUCTANCE HEAT PIPE ENHANCEMENT

A heat pipe having an internal cross-sectional area contains a fixed restriction member with a reduced cross-sectional area, positioned in the condenser length of the heat pipe. An evaporatable and condensable fluid partially fills the heat pipe with the remaining volume being occupied by an noncondensable gas which is positioned at least partly around the restriction member. By reducing the internal cross-section area of the heat pipe using the restriction member, the overall length of a practical working heat pipe can be reduced. The cross-sectional area of the restriction member can also be varied for changing the heat exchange characteristics of the heat pipe.

METHOD FOR HEATING A ROAD BY MEANS OF A HEATING SYSTEM POWERED BY THE INTERNAL HEAT OF THE EARTH AND HEATING INSTALLATION OF PAVEMENT FOR CARRYING OUT SAID METHOD

Method and Device for Self-Acting Heat Transfer in a Direction Reverse to Natural Convection

According to the present invention, the method of heat transfer in a direction, which is reverse to natural convection, includes introduction of an additional pumping substance into the heated area. The pumping substance is incapable to be dissolved in the heat-transfer agent and its boiling temperature is lower than the boiling temperature of the heat-transfer agent. The heat-transfer agent is heated up, the pumping substance evaporates and the vapour pressure of the pumping substance is used to force the hot heat-transfer agent to flow along the branches of the circulating loop. The device for heat transfer in a direction reverse to the natural convection characterized in that its design incorporates technical means intended for vapour condensation of the pumping substance as well as technical means intended for draining that condensate from the condensation area to the evaporation area.

Multi-section heat-pipe solar collector

A multi-section heat-pipe solar collector includes a heat-exchanging pipe and at least one heat-collecting module. The heat-collecting module includes a heat pipe and a plurality of heat-collecting plates serially connected on one side of the heat pipe at intervals. One end of the heat pipe is inserted into the heat-exchanging pipe. The heat-collecting plates are arranged on the other end of the heat pipe in multiple sections and have different heat transfer characteristics respectively.

METHOD OF CONSTRUCTION OF A WALL HEATING PANEL AND A WALL HEATING PANEL

The method of construction of a wall heating panel and a wall heating panel consists in constructing an aluminium multi-channel collector, preferably with one phase transition channel, connecting it inseparably with vertical aluminium heating elements, arranging the heating elements in the grooves of a dry wall construction board, preferably magnesium, and filling the space between the grooves and the heating elements with elastic compound, and then applying paper—aluminium foil laminate onto the whole surface of the board. A wall heating panel consists of an aluminium collector () with stub pipes (), inside the collector there are horizontal parallel phase transition channels () and a water channel (), the phase transition channel () is inseparably connected with the vertical aluminium heating elements () which are inserted into the grooves of the dry wall construction board (), spaces between the grooves and the heating elements are filled with elastic compound () and sealed with paper—aluminium foil laminate (), whereas the top part of the collector () adjoins the bottom surface of the board (). 1. A method for constructing a wall heating panel for a dry wall construction , comprising the steps of:forming, from an aluminium multi-channel profile, a collector having at least one horizontal phase transition channel and a water channel having stub pipes at both ends of the water channel for connecting the collector to a water heating installation;permanently plugging the ends of the at least one phase transition channels;connecting inseparably aluminium vertical heating elements, previously plugged at the top, with the at least one phase transition channel to form a system and checking the system for tightness;removing air from the system and filling the system with a thermodynamic medium in an amount of up to 95% of the system volume and tightly closing the system;inserting the vertical heating elements into previously made grooves of a dry wall construction board, ...

TWO-PHASE THERMAL LOOP WITH MEMBRANE SEPARATION

A thermal management loop system may include an accumulator, an evaporator in fluid receiving communication with the accumulator, a condenser in fluid receiving communication with the evaporator, and a membrane separator in fluid receiving communication with the condenser. Gas exiting the membrane separator may recirculate back to the condenser and liquid exiting the membrane separator may flow to the accumulator. The thermal management loop system may be a dual-mode system and thus may be operable in a powered-pump mode or a passive-capillary mode. 1. A thermal management loop system comprising:an accumulator;an evaporator in fluid receiving communication with the accumulator;a condenser in fluid receiving communication with the evaporator; anda membrane separator in fluid receiving communication with the condenser, the membrane separator configured to recirculate gas to the condenser and to provide liquid to the accumulator.2. The thermal management loop system of claim 1 , wherein the membrane separator is coupled to a liquid inlet of the accumulator.3. The thermal management loop system of claim 1 , further comprising a flow sensor coupled to the membrane separator claim 1 , wherein identifying a heat transfer load on the thermal management loop system is based on flow data received from the flow sensor.4. The thermal management loop system of claim 1 , further comprising a pump that drives fluid circulation claim 1 , wherein the pump pumps liquid from the accumulator to the evaporator.5. The thermal management loop system of claim 4 , further comprising a valve in fluid communication between the evaporator and the accumulator claim 4 , wherein liquid exiting the evaporator flows through the valve to the accumulator.6. The thermal management loop system of claim 5 , wherein the valve comprises a back pressure valve that controls back pressure in the evaporator.7. The thermal management loop system of claim 5 , wherein the valve controls flow of gas from the ...

Thermal management with variable conductance heat pipe

Photonic and electronic integrated circuits can be cooled using variable conductance heat pipes containing a non-condensable gas in addition to a phase-changing working fluid. To package the heat pipe with a subassembly including the integrated circuits in a standard housing providing a heat sink contact area, the heat pipe is oriented, in some embodiments, with its axis between evaporator and condenser ends substantially perpendicular to the direction along which the integrated circuit subassembly is separated from the heat sink contact area, and a portion of the exterior surface of the heat pipe is thermally insulated, with a suitable thermal insulation structure, from the heat sink contact area.

HEAT PIPE

A heat pipe, includes; an outer tube including a first end and a second end, the first end closed to be air tight; a box connected to the second end of the outer tube, a cross-sectional area of the box perpendicular to the central axis of the outer tube is larger than a cross-sectional area of the outer tube perpendicular to its axis; an inner tube positioned in the outer tube, a central axis of the inner tube parallel to the central axis of the outer tube, including a third end and a fourth end, the third end of the inner tube closer to the first end of the outer tube than the forth end of the inner tube and open in the outer tube; a partition tube including a fifth end and a sixth end and wider from the fifth end toward the sixth end, the fifth end of the partition tube connected with the fourth end, a part of the sixth end connected on an inner surface of the box; and a fluid in a space formed by the outer tube and the box. 1. A heat pipe , comprising;an outer tube including a first end and a second end, the first end closed to be air tight;a box connected to the second end of the outer tube, a cross-sectional area of the box perpendicular to the central axis of the outer tube is larger than a cross-sectional area of the outer tube perpendicular to its axis;an inner tube positioned in the outer tube, a central axis of the inner tube parallel to the central axis of the outer tube, including a third end and a fourth end, the third end of the inner tube closer to the first end of the outer tube than the forth end of the inner tube and open in the outer tube;a partition tube including a fifth end and a sixth end and wider from the fifth end toward the sixth end, the fifth end of the partition tube connected with the fourth end, a part of the sixth end connected on an inner surface of the box; anda fluid in a space formed by the outer tube and the box.2. The heat pipe according to claim 1 , further comprisinga cooling plate parallel to an inner surface of the ...

AN AMMONIA FILLING SYSTEM

A filling system that has a chamber, at least one heat pipe used for heat transfer and extending along the chamber, at least one ammonia tube that pure ammonia is able to be stored at room temperature as saturated vapour, at least one delivery line that enables to deliver ammonia from the ammonia tube to the heat pipe and the heat pipe is removably engaged, at least one valve is located on the delivery line and allows ammonia flow to controlled, at least one detector located on the delivery line and providing seal control, at least one heater to heat the heat pipe, and at least one cooler to cool the heat pipe. 11232454336575839311035. A filling system () comprising a chamber () , at least one heat pipe () used for heat transfer and extending along the chamber () , at least one ammonia tube () in which pure ammonia is able to be stored at room temperature as saturated vapour , at least one delivery line () which enables to deliver ammonia from the ammonia tube () to the heat pipe () and to which the heat pipe () is removably engaged , at least one valve () which is located on the delivery line () and allows ammonia flow to controlled , at least one detector () located on the delivery line () and providing seal control , at least one heater () to heat the heat pipe () , and at least one cooler () to cool the heat pipe () , the filling system () characterized by comprising at least one additional heater () to keep an end of the heat pipe () which is connected with the delivery line () above a predetermined temperature value.21110353. The filling system () according to claim 1 , characterized in that the filling system () has an additional heater () which provides heat to an end of the heat pipe () which is connected with the delivery line () claim 1 , while the heat pipe () is cooled.31110. The filling system () according to claim 1 , characterized in that the filling system () has an additional heater () to blow hot air.4117389333. The filling system () according to ...

HEAT DISSIPATION MODULE

A portable electronic device having a heat source is provided with a suitable heat dissipation module. The heat dissipation module includes an evaporator, at least one pipe, a working fluid, and at least one check valve. The evaporator thermally contacts the heat source to transmit the heat generated by the heat source to the evaporator. The pipe is connected to the evaporator to form at least one loop, and the working fluid is filled in the loop. The working fluid absorbs and dissipates the heat in the loop to generate a phase change. The check valve is disposed at the loop and provides at least one recirculation channel in the same direction as the first direction and opposite to a second direction to block the working fluid from flowing in the second direction. The first and the second directions are opposite to each other. 1. A heat dissipation module , suitable for a portable electronic device having a heat source , comprising:an evaporator, thermally contacting the heat source to transmit the heat generated by the heat source to the evaporator;at least one pipe, connected to the evaporator to form at least one loop;a working fluid, filled in the loop, wherein the working fluid in a liquid phase absorbs the heat and is converted into the working fluid in a vapor phase flowing from the evaporator to the pipe, and the working fluid in the vapor phase dissipates the heat in the pipe and is converted into the working fluid in the liquid phase flowing into the evaporator; andat least one check valve, disposed at the loop to restrict the working fluid to flow in a first direction in the loop, wherein the check valve drives the working fluid to form at least one recirculation flow in the same direction as the first direction and opposite to a second direction to block the working fluid from flowing in the second direction in the loop, wherein the first and the second directions are opposite to each other.2. The heat dissipation module according to claim 1 , wherein ...

THERMAL MANAGEMENT SYSTEM

The present invention provides a vehicle () comprising: a body () having a skin; a heat source (); and a thermal management system. The thermal management system comprises: a heat pipe () comprising: an evaporator end (close to ) and a condenser end (close to heat exchanger ); a vapour arranged to flow from the evaporator end to the condenser end; and a working fluid arranged to flow from the condenser end to the evaporator end, wherein the heat pipe () is arranged such that the evaporator end is arranged in proximity to the heat source to absorb heat from the heat source; and one or more heat exchangers arranged in proximity to the condenser end and integrated with the skin. The present invention also provides a method of managing temperature in a vehicle. 1. A vehicle comprising:a body having a skin;a heat source; and a heat pipe comprising:', 'an evaporator end and a condenser end;', 'a vapour arranged to flow from the evaporator end to the condenser end; and', 'a working fluid arranged to flow from the condenser end to the evaporator end,', 'wherein the heat pipe is arranged such that the evaporator end is arranged in proximity to the heat source to absorb heat from the heat source; and', wherein the one or more heat exchangers each comprise one or more fins disposed in an opening in the body of the vehicle; and', 'wherein a portion of each of the one or more fins is/are arranged to substantially fill the opening and to match the contour of the adjacent skin surrounding the opening to form a portion of the skin, and wherein the condenser end of the heat pipe is arranged adjacent to each of the one or more fins., 'one or more heat exchangers arranged in proximity to the condenser end and integrated with the skin;'}], 'a thermal management system comprising2. The vehicle according to claim 1 , comprising:a first temperature sensor for measuring the temperature of the heat source;translation means for causing the heat pipe to translate from a first configuration to ...

THERMOSIPHONS FOR USE WITH TEMPERATURE-REGULATED STORAGE DEVICES

In some embodiments, a thermosiphon configured for use within a temperature-regulated storage device includes: a condenser region, including a plurality of evenly spaced condenser channels with horizontally symmetrical bifurcated branches connected to an adiabatic channel, each of the plurality of condenser channels connected at a top position to an upper channel; an evaporator region, including a plurality of evaporator channels, wherein each of the plurality of evaporator channels has a flow channel formed in a serpentine channel pattern and each subunit of the serpentine channel pattern is attached to a vapor return channel at a top of the subunit, and wherein the evaporator region has at least one lowest position connected directly to a vapor return channel; and an adiabatic region including at least one adiabatic channel connecting the evaporator channels and the condenser channels. 1. A thermosiphon for use within a temperature-regulated storage device , comprising:a condenser region, including a plurality of evenly spaced condenser channels with horizontally symmetrical bifurcated branches connected to an adiabatic channel, each of the plurality of condenser channels connected at a top position to an upper channel;an evaporator region, including a plurality of evaporator channels, wherein each of the plurality of evaporator channels has a flow channel formed in a serpentine channel pattern and each subunit of the serpentine channel pattern is attached to a vapor return channel at a top of the subunit, and wherein the evaporator region has at least one lowest position connected directly to a vapor return channel; andan adiabatic region including at least one adiabatic channel connecting the evaporator channels and the condenser channels.24.-. (canceled)5. The thermosiphon of claim 1 , wherein the condenser region comprises:a gas-holding channel attached to the upper channel, the gas-holding channel including an interior space of a specific size to contain a ...

Enhanced cooling of an electronic device using micropumps in thermosiphons

Certain aspects of the present disclosure generally relate to techniques for cooling electronic devices using thermosiphons having one or more micro-pumps at least partially disposed therein. A provided thermosiphon generally includes a fluid; a first evaporator configured to evaporate the fluid, wherein the first evaporator has an inlet and an outlet; a first condenser configured to condense the fluid, wherein the first condenser has an inlet and an outlet; a first channel coupled between the outlet of the first evaporator and the inlet of the first condenser; a second channel coupled between the outlet of the first condenser and the inlet of the first evaporator; and a first micro-pump located in the second channel and operable to pump the fluid in the second channel from the first condenser to the first evaporator.

ACTIVE/PASSIVE COOLING SYSTEM

An airstream cooling assembly includes an evaporator and a first and second condenser. The evaporator is configured to have a first airstream directed over its outer surface and to change the phase of a primary cooling medium from liquid to gas. The first condenser is configured to have a second airstream directed over its outer surface, transfer heat from the primary cooling medium, and change the phase of the primary cooling medium from gas to liquid. The second condenser is configured to accept a secondary cooling medium, and when accepting the secondary cooling medium, to receive the primary cooling medium from the evaporator, transfer heat from the primary cooling medium, and change the phase of the primary cooling medium from gas to liquid. The evaporator is configured to receive the primary cooling medium in the liquid phase from at least one of the first condenser and the second condenser. 1. An airstream cooling assembly operable in passive and active modes , the airstream cooling assembly comprising:an evaporator having an outer surface and containing a primary cooling medium, the evaporator being configured to have a first airstream directed over the outer surface thereof and, when the first airstream is directed over the outer surface, to change the phase of the primary cooling medium from liquid to gas;a passive condenser having an outer surface and being fluidly coupled to the evaporator; anda heat exchanger fluidly coupled to the evaporator, receive the primary cooling medium in the gas phase from the evaporator,', 'receive a second airstream directed over its outer surface to change the phase of the primary cooling medium from gas to liquid, and', 'supply the primary cooling medium in the liquid phase to the evaporator, and wherein, in the active mode, the heat exchanger is configured to:', 'receive the primary cooling medium in the gas phase from the evaporator,', 'transfer heat from the primary cooling medium to change the primary cooling medium ...

Cooling apparatus

According to various, but not necessarily all, examples of the disclosure there is provided an apparatus comprising: one or more portions of material configured to vibrate at one or more ultrasonic frequencies when the material is positioned within a varying magnetic field; and wherein the one or more portions of material configured to vibrate at one or more ultrasonic frequencies are positioned so that, when a varying magnetic field is applied to the apparatus, the vibration caused by the varying magnetic field provides increased cooling within a cooling system.

Three-way modulating valve for temperature control

A temperature sensor for a first fluid senses a temperature of the first fluid downstream of a heat exchanger. A supply for a second fluid changes a temperature of the first fluid. The supply for the second fluid passes through the heat exchanger. A valve is positioned upstream of the said heat exchanger on the supply for the second fluid, and controls a flow rate of the second fluid diverted into a bypass line compared to a flow rate of the second fluid directed through the heat exchanger, with the three-way valve controlled by a control in response to feedback from said temperature sensor. The valve changes the respective flow rates delivered into the bypass line and through the said heat exchanger in a non-linear manner with a change in valve position. A manned spaceship is also disclosed.

TEMPERATURE CALIBRATION SYSTEM WITH SEPARABLE COOLING ASSEMBLY

Generally described, embodiments are directed to a temperature calibration system that includes a closed fluidic system and a cooling assembly configured to remove heat from the closed fluidic system. The cooling assembly is configured to move between a coupled position, in which the cooling assembly is thermally coupled to (e.g., abutting) a condenser of the closed fluidic system, and a decoupled position, in which the cooling assembly is thermally decoupled (e.g., spaced apart) from the condenser of the closed fluidic system. In at least one embodiment, while in the decoupled position, components of the cooling assembly may be protected from damage that may occur at elevated temperatures. 1. A temperature calibration system , comprising:a calibration unit configured to receive one or more device elements to be calibrated;a closed fluidic system configured to remove heat from the calibration unit, the closed fluidic system including a condenser and an evaporator; anda cooling assembly configured to move between a coupled position, in which the cooling assembly is abutting the condenser, and a decoupled position, in which the cooling assembly is spaced from the condenser by a gap.2. The temperature calibration system of claim 1 , further comprising compression springs having first ends coupled a fixed component and second ends coupled to a movable component claim 1 , the compression springs being biased to move the cooling assembly from the coupled position to the decoupled position.3. The temperature calibration system of claim 1 , further comprising a controller and one or more linear actuators that are coupled to the controller claim 1 , the controller being configured to actuate the linear actuators to cause the cooling assembly to move from the decoupled position to the coupled position.4. The temperature calibration system of claim 3 , further comprising a temperature sensor coupled to the controller and configured to provide a signal indicative of a ...

ADVANCED CONTROL TWO PHASE HEAT TRANSFER LOOP

The advanced control heat transfer loop apparatus () for heat transfer and thermal control applications uses a two-phase fluid as a working media and comprises at least one evaporator () to be connected with a heat source and comprising primary capillary pump (), a thermal stabilization-compensation chamber () being attached to the at least one evaporator (), at least one condenser () to be connected with a heat sink, liquid lines () and vapor lines () connecting the at least one evaporator () and the at least one condenser (), a remote compensation chamber (), temperature sensors () for detecting the temperature of the remote compensation chamber () and at the thermal stabilization compensation chamber () attached to the at least one evaporator (),at least one heating element () for heating the remote compensation chamber (), and a controller (). The controller () is configured to monitor the temperatures detected by the sensors () and to control the heating element () in such a way that the value of the difference ΔTbetween the temperature of the remote compensation chamber () and the temperature of the thermal stabilization-compensation chamber () attached to the at least one evaporator () is positive. 1. Advanced control heat transfer loop apparatus for heat transfer and thermal control applications , using a two-phase fluid as a working media and comprising:at least one evaporator to be connected with a heat source and comprising a primary capillary pump, a thermal stabilization-compensation chamber being attached to said at least one evaporator,at least one condenser to be connected with a heat sink,liquid lines and vapor lines connecting said at least one evaporator and said at least one condenser,a remote compensation chamber,temperature sensors for detecting the temperature of said remote compensation chamber and at said thermal stabilization compensation chamber attached to said at least one evaporator,at least one heating element for heating said remote ...

CONFIGURABLE WICKLESS CAPILLARY-DRIVEN CONSTRAINED VAPOR BUBBLE (CVB) HEAT PIPE STRUCTURES

An integrated circuit package may include one or more integrated circuit dies and reconfigurable constrained vapor bubble (CVB) heat pipe structures formed on the integrated circuit dies. The reconfigurable CVB heat pipe structures may be adjusted using micro-electro-mechanical systems (MEMS) switches. By turning on a MEMS switch, the corresponding heat pipe structure will exhibit a first heat transfer efficiency. By turning off a MEMS switch, the corresponding heat pipe structure will exhibit a second heat transfer efficiency that is less than the first heat transfer efficiency. The reconfigurable CVB heat pipe structures may be statically programmed and/or dynamically adjusted as hot spot locations within the integrated circuit package migrate over time. 1. Circuitry , comprising:an integrated circuit die;an adjustable constrained vapor bubble (CVB) heat pipe structure coupled to the integrated circuit die; anda micro-electro-mechanical systems (MEMS) switch configured to adjust the adjustable CVB heat pipe structure.2. The circuitry of claim 1 , wherein the adjustable CVB heat pipe structure is wickless.3. The circuitry of claim 1 , wherein the MEMS switch comprises a piezoelectric switch.4. The circuitry of claim 1 , wherein the adjustable CVB heat pipe structure includes at least a first constrained vapor bubble at a first end and a second constrained vapor bubble at a second end claim 1 , and wherein the MEMS switch is configured to simultaneously adjust the size of the first and second constrained vapor bubbles.5. The circuitry of claim 1 , wherein the adjustable CVB heat pipe structure includes a first constrained vapor bubble at a first end and a second constrained vapor bubble at a second end claim 1 , and wherein the size of the first and second constrained vapor bubbles are independently adjustable.6. The circuitry of claim 1 , further comprising:control circuitry for selectively activating the MEMS switch, wherein the control circuitry comprises a ...

UNMANNED AERIAL VEHICLE AND METHOD FOR OPERATING AN UNMANNED AERIAL VEHICLE

According to various aspects, an unmanned aerial vehicle may be described, the unmanned aerial vehicle including: a cooling structure configured to dissipate heat; an air channel configured to dissipate heat from the cooling structure via an airflow; at least one fan configured to provide the airflow through the air channel; one or more sensors configured to receive ambient condition information associated with an ambient condition in a vicinity of the unmanned aerial vehicle; and one or more processors configured to trigger a reduction of the airflow through the air channel based on the ambient condition information. 1. An unmanned aerial vehicle , comprising:a cooling structure configured to dissipate heat;an air channel configured to dissipate heat from the cooling structure via an airflow;at least one fan configured to provide the airflow through the air channel;one or more sensors configured to receive ambient condition information associated with an ambient condition in a vicinity of the unmanned aerial vehicle; andone or more processors configured to trigger a reduction of the airflow through the air channel based on the ambient condition information.2. The unmanned aerial vehicle of claim 1 , further comprising:at least one electronic device, wherein the cooling structure is configured to dissipate the heat from the at least one electronic device.3. The unmanned aerial vehicle of claim 2 ,wherein the one or more processors are further configured to at least reduce a computing load associated with at least one computing function of the at least one electronic device based on the ambient condition information.6. The unmanned aerial vehicle of claim 1 ,wherein the one or more sensors comprise at least one receiver configured to receive a signal representing the ambient condition information, andwherein the signal representing the ambient condition information is provided by a flight controller of the unmanned aerial vehicle or by a remote control associated ...

Cooling apparatus for electronic device with vapor-liquid pump

An electronic device cooling apparatus equipped with a vapor-liquid pump, including: an impeller located in a vapor-liquid receiving part that receives a vapor-liquid; a motor stator which is located outside separated from the vapor-liquid receiving part and transfers the driving force to the impeller; a sealed injection cover, in which an impeller shaft is formed on one side; a motor stator insertion rod, which is formed to protrude from the axis to the outer center of the impeller shaft such that the motor stator is inserted thereinto, is formed on the other side; a top plate, which is formed by extending from an edge of the motor stator insertion rod to separate the impeller from the motor stator, is formed; and an inlet through which the vapor-liquid flows in and an outlet through which the vapor-liquid flows out are formed on one side of the top plate; a heat transfer base, which is fused or attached to the bottom of the impeller along the rim of the top plate such that the vapor-liquid receiving part is formed; an inlet pipe, which is fused or attached to the inlet such that the vapor-liquid is flowed in; an outlet pipe, which is fused or attached to the outlet such that the vapor-liquid is flowed out; and a condenser, which is located between the inlet pipe and the outlet pipe and condenses the gas in the vapor-liquid, wherein the inner space, which is a closed loop that leads to the vapor-liquid receiving part, the inlet pipe, the outlet pipe and the condenser, forms a vacuum.

MANUFACTURING METHOD AND STRUCTURE OF HEAT PIPE WITH ADJUSTABLE WORKING TEMPERATURE RANGE

A manufacturing method and structure of heat pipe with adjustable working temperature range are provided. The heat pipe includes a tube, a capillary structure and a working liquid. The tube includes a passage having a length direction and a diameter direction. Besides, a part of the tube has a pressed deformation zone in the pipe diameter direction, and the pressed cross-sectional area of the deformation zone in the diameter direction is reduced by a reduction ratio with respect to an original cross-sectional area before pressing, so that the deformation zone has a higher fluid resistance. Thereby, the heat pipe can be operated under a certain working temperature range, and the working object can achieve the working efficiency. 1. A manufacturing method of heat pipe with adjustable working temperature range , comprising:a) providing a heat pipe for attaching a working object for heat exchange; the heat pipe including a tube, a capillary structure disposed on an inner wall of the tube, and a working liquid disposed in the tube; the tube comprising a passage having a length direction and a diameter direction being perpendicular to the length direction; the working liquid absorbing heat of the working object and then converting into a vapor phase, and the working liquid passing the passage to perform a condensation reaction along the length direction and condensing back into the working liquid; the working liquid moving to a location where the working object attached thereto through the capillary structure and absorbing heat of the working object;b) pressing uniformly on a part of the tube in the pipe diameter direction by a means of processing to form a deformation zone, and a pressed cross-sectional area of the deformation zone after being pressed in the diameter direction being reduced by a reduction ratio with respect to an original cross-sectional area before the deformation zone being pressed, so that the deformation zone has a higher fluid resistance, wherein ...

Phase Change Cell

A phase change cell includes a housing enclosing a phase change chamber that holds a phase change material and a gas pocket. The housing includes a side wall extending between first and second end walls. A capillary is disposed in an interior surface of the side wall. In response to heating of the phase change cell, the capillary is configured to draw the phase change material in a liquid phase towards the periphery of the phase change chamber. A temperature sensor is coupled to the housing in a vicinity of the capillary to measure the phase change temperature. According to another aspect, the housing includes a moveable surface that bounds a portion of the phase change chamber. The phase change temperature of the phase change material changes based on the position of the moveable wall. 1. A phase change cell , comprising:a housing enclosing a phase change chamber, the housing including a first end wall configured to be coupled to a heating and/or cooling source, a second end wall, and a side wall longitudinally extending between the first and second end walls;a phase change material occupying a majority of a volume of the phase change chamber, the phase change material being configured to change between a solid phase and a liquid phase at a phase change temperature in response to heating or cooling;a gas pocket disposed in the phase change chamber in communication with the phase change material;a capillary disposed along a periphery of the phase change chamber, the capillary comprising a channel formed in an interior surface of the side wall, wherein in response to heating of the phase change cell, the capillary is configured to draw the phase change material in a liquid phase towards the periphery of the phase change chamber; anda temperature sensor coupled to the housing in a vicinity of the capillary.2. The phase change cell of claim 1 , wherein the capillary is one of a plurality of capillaries each comprising a channel formed in the interior surface of the ...

REFRIGERANT SUPPLY DEVICE, PHASE-CHANGE COOLING APPARATUS EQUIPPED WITH THE SAME, AND METHOD OF SUPPLYING REFRIGERANT

To address the problem of deterioration of cooling performance of a phase-change cooling apparatus cooling a plurality of heat-emitting bodies because of changes in the amount of heat emitted by the plurality of heat-emitting bodies, a refrigerant supply device according to the present invention includes: a first reservoir for storing refrigerant liquid caused to flow by a drive pump; and a refrigerant liquid amount adjustment means for adjusting the flow rate of the refrigerant liquid flowing out of the first reservoir to a heat reception unit wherein the reservoir includes a branch outlet, wherein the branch outlet is provided in a position higher than the refrigerant liquid amount adjustment means, and wherein refrigerant liquid stored in the first reservoir flows out of the branch outlet to a second reservoir disposed in a position lower than the first reservoir. 1. A refrigerant supply device comprising:a first reservoir for storing refrigerant liquid caused to flow by a drive pump; anda refrigerant liquid amount adjustment unit adjusting a flow rate of the refrigerant liquid flowing out of the first reservoir to a heat reception unit,wherein the reservoir comprises a branch outlet,wherein the branch outlet is provided in a position higher than the refrigerant liquid amount adjustment unit, andwherein refrigerant liquid stored in the first reservoir flows out of the branch outlet to a second reservoir disposed in a position lower than the first reservoir.2. The refrigerant supply device according to claim 1 , wherein the branch outlet is connected with a branch pipe for transporting refrigerant liquid in the first reservoir from a vicinity of the liquid surface of the refrigerant liquid in the first reservoir to the second reservoir.3. The refrigerant supply device according to claim 1 , wherein the refrigerant liquid amount adjustment unit is provided for a pipe connected to one of a bottom surface and a lower end of a side surface of the first reservoir.4. ...

METHOD FOR EVALUATING LIFTING FORCE IN A HEAT EXCHANGER

A method and a control unit for evaluating lifting force of a gas phase of a substantially vertical upward two-phase flow of a first fluid in a heat exchanger. The first fluid comprises the gas phase and a liquid phase. The method comprises determining that the lifting force of the gas phase is insufficient for lifting the liquid phase based on hot end approach of the heat exchanger and/or on pressure drop of the first fluid over the heat exchanger. The control unit is configured to determine that the lifting force of the gas phase is insufficient for lifting the liquid phase based on hot end approach of the heat exchanger and/or on pressure drop of the first fluid over the heat exchanger. A heat exchanger assembly comprising a heat exchanger and the control unit. 1. A method for evaluating lifting force of a gas phase of a substantially vertical upward two-phase flow of a first fluid in a heat exchanger , wherein the first fluid comprises the gas phase and a liquid phase , wherein the method comprisesdetermining that the lifting force of the gas phase is insufficient for lifting the liquid phase based on hot end approach of the heat exchanger and/or on pressure drop of the first fluid over the heat exchanger.2. The method according to claim 1 , wherein the determining that the lifting force is insufficient is based on the time derivative of the hot end approach and/or the time derivative of the pressure drop.3. The method according to claim 2 , wherein it is determined that the lifting force is insufficient if the absolute value of the time derivative of the hot end approach exceeds a predefined primary threshold value and/or if the absolute value of the time derivative of the pressure drop exceeds a predefined primary limit value.4. The method according to claim 1 , wherein the method further comprises determining that the lifting force risk being insufficient based on hot end approach and/or on pressure drop.5. The method according to claim 4 , wherein the ...

PHASE CHANGE COOLING DEVICE AND PHASE CHANGE COOLING METHOD

With a phase change cooling device, it is difficult to obtain reliable high-efficiency cooling performance due to a change in heat exchange performance. Thus, a phase change cooling device according to the present invention includes: a heat receiving apparatus that houses a coolant; a sensor that acquires heat receiving apparatus coolant information that is information relating to a liquid-gas two-phase flow interface of the coolant housed in the heat receiving apparatus; a radiator that radiates heat of coolant vapor of the coolant heat-received and evaporated in the heat receiving apparatus, and recirculates liquefied coolant liquid to the heat receiving apparatus; a valve that controls a flow rate of the coolant liquid; and a control unit that controls a degree of opening of the valve, wherein the control unit controls, based on the heat receiving apparatus coolant information, a degree of opening of the valve in such a way that a liquid-gas two-phase flow interface of the coolant is located at an end part of the heat receiving apparatus in a vertical direction. 1. A phase change cooling device comprising:a heat receiving apparatus that houses a coolant;a sensor that acquires heat receiving apparatus coolant information that is information relating to a liquid-gas two-phase flow interface of the coolant housed in the heat receiving apparatus;a radiator that radiates heat of coolant vapor of the coolant heat-received and evaporated in the heat receiving apparatus, and recirculates liquefied coolant liquid to the heat receiving apparatus;a valve that controls a flow rate of the coolant liquid; andcontrol unit that controls a degree of opening of the valve, whereinthe control unit controls, based on the heat receiving apparatus coolant information, a degree of opening of the valve in such a way that a liquid-gas two-phase flow interface of the coolant is located at an end part of the heat receiving apparatus in a vertical direction.2. The phase change cooling device ...

COOLING SYSTEMS COMPRISING PASSIVELY AND ACTIVELY EXPANDABLE VAPOR CHAMBERS FOR COOLING POWER SEMICONDUCTOR DEVICES

A cooling system that includes an expandable vapor chamber having a condenser side opposite an evaporator side, a condenser side wick coupled to a condenser side wall, an evaporator side wick coupled to an evaporator side wall, and a vapor core positioned between the evaporator side wick and the condenser side wick. The cooling system also includes a vapor pressure sensor communicatively coupled to a controller and a bellow actuator disposed in the vapor core and communicatively coupled to the controller. The bellow actuator is expandable based on a vapor pressure measurement of the vapor pressure sensor. 1. A cooling system comprising: a condenser side opposite an evaporator side;', 'a condenser side wick coupled to a condenser side wall;', 'an evaporator side wick coupled to an evaporator side wall; and', 'a vapor core positioned between the evaporator side wick and the condenser side wick;, 'an expandable vapor chamber comprisinga vapor pressure sensor communicatively coupled to a controller; anda bellow actuator disposed in the vapor core and communicatively coupled to the controller, wherein the bellow actuator is expandable based on a vapor pressure measurement of the vapor pressure sensor.2. The cooling system of claim 1 , wherein the bellow actuator is coupled to the condenser side wick and the evaporator side wick.3. The cooling system of claim 1 , wherein the bellow actuator is coupled to the condenser side wall and the evaporator side wall.4. The cooling system of claim 1 , further comprising a sealing layer extending between the evaporator side wick and the condenser side wick claim 1 , wherein the sealing layer comprises a flexible material and hermetically seals the vapor core.5. The cooling system of claim 4 , wherein the sealing layer is coupled to a side surface of the evaporator side wick and a side surface of the condenser side wick.6. The cooling system of claim 1 , wherein:the condenser side wall comprises an end portion and shoulder portions ...

VARIABLE CONDUCTANCE THERMOSIPHON

The present invention relates cooling system comprising at least one Thermo syphon, which Thermo syphon comprises at least one indoor evaporator, which is by first tubing connected to at least one outdoor condenser. It is the object of the present application to achieve effective automatic cooling of electronic systems placed inside a housing. This can be achieved by a system as disclosed in that the second tubing comprises a valve, which valve comprises a valve seat and a moveable valve piston, which valve piston is by decreasing temperature by the actuator moving towards the valve seat for closing the valve. Hereby a highly efficient cooling system can be achieved which can operate automatically without any energy supply from the outside, due to the use of the Thermo syphon principle. In situations where the outdoor temperature is decreasing to a low level which could occur in situations where the outdoor condensers in winter periods is cooled to a low temperature, there is a valve, which reduces or stops condensate and liquid refrigerant backwards to the evaporator. 119-. (canceled)20. A cooling system comprising at least one thermosiphon with at least one indoor evaporator configured for evaporation of a liquid refrigerant and is heat conductively connected to indoor cooling fins , and which indoor evaporator by a first tubing is connected to at least one outdoor condenser , which first tubing conducts evaporated refrigerant from the evaporator to the outdoor condenser that is heat conductively connected to outdoor cooling fins for cooling the outdoor condenser , and which outdoor condenser relatively to the indoor evaporator is placed at a defined vertical distance to use the gravity to generate a flow of the liquid refrigerant from the outdoor condenser through a second tubing back to the indoor evaporator , wherein the second tubing comprises a valve with a valve seat and a moveable valve piston with—the valve piston being movable by a valve actuator so that ...

Phase-change cooling apparatus and method of controlling the same

A cooling system employing a phase-change cooling apparatus together with an air conditioner becomes complex and increases in cost if it is configured to maximize the efficiency of the entire cooling system; therefore, a phase-change cooling apparatus according to an exemplary aspect of the present invention includes a heat receiving means for vaporizing refrigerant liquid stored and producing refrigerant vapor by receiving heat exhausted from a heating section having breathed in cold air; a heat radiation means for liquefying the refrigerant vapor and producing refrigerant liquid by radiating heat of the refrigerant vapor to cooling air by a fan; a vapor tube connecting the heat receiving means to the heat radiation means, the refrigerant vapor mainly flowing through the vapor tube; a liquid tube connecting the heat receiving means to the heat radiation means, the refrigerant liquid mainly flowing through the liquid tube; and a control means for controlling a rotation rate of the fan, wherein the control means controls the rotation rate of the fan so that a vapor temperature that is a temperature of the refrigerant vapor may approach an intake-air temperature that is a temperature of the cold air.

DEMAND-BASED CHARGING OF A HEAT PIPE

A heat pipe includes a reservoir of liquid that is connected to a horizontal portion of the heat pipe via a capillary connection. The heat pipe includes a temperature sensor in proximity to a heat interface in the horizontal portion and a controller that controls a heater for the reservoir. As power into the heat pipe increases, the controller turns on the heater, causing the temperature of the liquid in the reservoir to rise. Liquid then passes from the reservoir through the capillary connection into the horizontal portion, thereby dynamically increasing the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. When the heater is off, as the heat pipe cools, the liquid condenses and flows back through the capillary connection into the reservoir. The result is a heat pipe that provides demand-based charging of the liquid based on power level. 1. A heat pipe comprising:an interface for thermally coupling a heat source to the heat pipe;a substantially horizontal portion charged with a first quantity of liquid and coupled to the interface;a reservoir that contains a second quantity of the liquid, the reservoir overlying the substantially horizontal portion and having a width and a height, where the width is substantially greater than the height;a capillary connection that connects the reservoir to the substantially horizontal portion;a heater thermally coupled to the reservoir;a temperature sensor in proximity to the interface; anda controller coupled to the heater and the temperature sensor, wherein the controller detects when temperature detected by the temperature sensor exceeds a predetermined threshold, and in response, turns on the heater.2. The heat pipe of wherein the capillary connection has a diameter of 0.1 millimeters (mm) to 0.3 mm.3. The heat pipe of wherein the capillary connection has a hydrophobic coating.4. The heat pipe of wherein turning on the heater by the controller heats the second quantity of ...

HEAT TRANSPORT SYSTEM AND TRANSPORTATION MACHINE

A heat transport system includes: a two-phase closed loop heat pipe; a pump disposed in a liquid conduit or a vapor conduit of the loop heat pipe to exert a circulation drive force on a working fluid; a tilt sensor that detects a tilt of the loop heat pipe; and a controller configured to run the pump if the tilt is greater than a predetermined tilt threshold and stop the pump if the tilt is equal to or smaller than the tilt threshold. 1. A heat transport system incorporated into a transportation machine , comprising:{'claim-text': ['an evaporator that changes at least a part of the working fluid from a liquid phase into a gas phase by heat absorbed from a heat source,', 'a condenser located above the evaporator to change the working fluid from the gas phase into the liquid phase,', 'a vapor conduit connecting an outlet of the evaporator and an inlet of the condenser, and', 'a liquid conduit connecting an outlet of the condenser and an inlet of the evaporator;'], '#text': 'a loop heat pipe charged with a working fluid, the loop heat pipe including'}a pump disposed in the liquid conduit or the vapor conduit to exert a circulation drive force on the working fluid;a tilt sensor that detects a tilt of the loop heat pipe; anda controller that controls operation of the pump based on the tilt, whereinthe working fluid in the liquid conduit flows from the condenser to the evaporator without being subjected to the action of the pump when the pump is at rest, and is forced to flow from the condenser to the evaporator under the action of the pump when the pump is running, andthe controller is configured to run the pump if the tilt is greater than a predetermined tilt threshold and stop the pump if the tilt is equal to or smaller than the tilt threshold.2. A heat transport system incorporated into a transportation machine , comprising:{'claim-text': ['an evaporator that changes at least a part of the working fluid from a liquid phase into a gas phase by heat absorbed from a heat ...

EVAPORATOR AND LOOP HEAT PIPE

An evaporator incorporated into a transportation machine includes: heat exchange units aligned in a horizontal direction in the transportation machine placed on a horizontal surface and whose positions change together; distribution conduits connected respectively to the heat exchange units to supply a working fluid in a liquid phase to the heat exchange units; and valves disposed respectively in the distribution conduits to block passage of the working fluid flowing from the heat exchange units toward the distribution conduits at least when a tilt of the heat exchange units is equal to or greater than a predetermined threshold. Each heat exchange unit includes: an inlet portion connected to the distribution conduit; and a heat exchange portion that includes at least one heat exchange path extending straight upward from the inlet portion and that allows the working fluid passing through the heat exchange path to exchange heat with the heat source. 1. An evaporator incorporated into a transportation machine to change at least a part of a working fluid from a liquid phase into a gas phase by heat absorbed from a heat source , comprising:a plurality of heat exchange units that are aligned in a horizontal direction in the transportation machine placed on a horizontal surface and whose positions change together;a plurality of distribution conduits connected respectively to the heat exchange units to supply the working fluid in the liquid phase to the heat exchange units; anda plurality of valves disposed respectively in the distribution conduits to block passage of the working fluid flowing from the heat exchange units toward the distribution conduits at least when a tilt of the heat exchange units is equal to or greater than a predetermined threshold,each heat exchange unit including:an inlet portion connected to the distribution conduit; anda heat exchange portion that includes at least one heat exchange path extending straight upward from the inlet portion and that ...

Heat transfer arrangement for a motor vehicle, and motor vehicle

A heat transfer arrangement for a motor vehicle includes a heat exchanger, a heat sink, and a heat pipe, with the heat pipe connected to the heat sink and connected via the first heat exchanger to a heat source of the motor vehicle. A latent heat accumulator is further operatively connected to the heat exchanger.

GENERATOR SWITCH WITH A COOLING DEVICE

A generator switch including an encapsulation lying at ground potential and an electrical conductor arranged in an insulated fashion inside the encapsulation and at high-voltage potential, as well as a gravity-driven cooling device having an evaporator and a condenser arranged above the evaporator and a coolant. The cooling device is formed as a closed loop-type coolant circuit. During operation of the generator switch, a level of the liquid coolant in the line system in a static cooling device is at least as high as the upper end of the insulating section in the insulator. 1. A generator switch , comprisingan encapsulation which is at ground potential during operation of the generator switch,an electrical conductor which is arranged in an electrically insulated fashion inside the encapsulation and is at high-voltage potential during operation of the generator switch, a gravity-driven cooling device having an evaporator and a condenser arranged above the evaporator is thermally conductively connected to the electrical conductor and is therefore at high-voltage potential during operation of the generator switch, and wherein the condenser is connected to the encapsulation and is therefore at ground potential during operation of the generator switch,wherein the evaporator is connected to the condenser by means of a line system having an insulator, so that during operation of the generator switch coolant vapor can be conveyed from the evaporator to the condenser and liquid coolant can be conveyed from the condenser to the evaporator,wherein the insulator has an insulating section with an upper end,wherein the line system has a coolant line, which connects a coolant outlet of the condenser to a coolant inlet of the evaporator, and furthermore has a coolant vapor line which connects a coolant vapor outlet of the evaporator to a coolant vapor inlet of the condenser, in such a way that a closed loop-type coolant circuit is formed,in that, during operation of the generator ...

System and method for cooling a body

A system and method for cooling an external surface of a heat conductive body heated by a heat source is provided. The system includes a tank containing an evaporation liquid, a conduit suppling the evaporation liquid to the external surface of the body, a controllable supply valve for regulating a flow rate of egress of the evaporation liquid from the tank, and a control unit for controlling operation of the supply valve. The control unit includes a temperature sensor producing a temperature sensor signal representative of the temperature of the body at the predetermined place; and a controller capable of generating control signals for controlling operation of the controllable supply valve to provide a pulsed supply of the evaporation liquid to the external surface of the body for obtaining a desired temperature decrease of the body.

DEMAND-BASED CHARGING OF A HEAT PIPE

A heat pipe includes one or more reservoirs of liquid that are closed at lower temperatures and open at higher temperatures. The opening of the reservoirs at higher temperatures caused by higher power levels dynamically increases the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. As the heat pipe cools, the liquid condenses and flows back into the reservoirs. As the heat pipe continues to cool, the reservoirs close. The result is a heat pipe that is more efficient at lower power levels and still maintains high efficiency at higher power levels due to the demand-based charging of the liquid based on temperature. 1. A heat pipe comprising:an interface for thermally coupling a heat source to the heat pipe;a substantially horizontal portion charged with a first quantity of liquid and coupled to the interface;a reservoir in a lower portion of the substantially horizontal portion that contains a second quantity of the liquid; anda temperature-actuated valve overlying the reservoir, wherein the temperature-actuated valve seals the second quantity of the liquid in the reservoir when the temperature is below an actuation temperature and unseals the second quantity of liquid in the reservoir when the temperature is above the actuation temperature.2. The heat pipe of wherein claim 1 , when the temperature is above the actuation temperature claim 1 , the first and second quantities of the liquid combine to form a third quantity of the liquid that comprises a sum of the first and second quantities of the liquid.3. The heat pipe of wherein the temperature-actuated valve comprises a bi-metal valve.4. The heat pipe of wherein the bi-metal valve has a first end fixedly attached to an edge of the reservoir with an opposing second end free to move from a first position that seals the reservoir to a second position that unseals the reservoir.5. The heat pipe of wherein the reservoir comprises a valve seat the temperature-actuated ...

Managing heat transfer for electronic devices

An apparatus for cooling a heat-producing electronic device is disclosed. The apparatus may include a thermally conductive vessel to mate with and contain a working fluid in contact with the heat-producing electronic device. A bottom side of the thermally conductive vessel may include a sealing surface defining an aperture and configured to mate with, and inside a perimeter of, a top surface of the heat-producing electronic device. The thermally conductive vessel may also include an evaporative cavity formed by mating the thermally conductive vessel with the heat-producing electronic device, and having a wall that is the top surface of the heat-producing electronic device and a wall that is an interior surface of the thermally conductive vessel. The thermally conductive vessel may also include a condensing cavity adjoining the evaporative cavity, to receive heat by condensing the working fluid from a vapor state to a liquid state.

PLATE TYPE NUCLEAR MICRO REACTOR

This invention provides a nuclear reactor design that can enable automated or semi-automated manufacturing of a small reactor in a mechanized factory. This is possible by following a layered approach to combine simple “plate” geometries with the use of diffusion bonding and computer aided manufacturing techniques that integrate all the fuel, axial reflectors, axial gamma and neutron shields, fuel gas plenum, heat removal mechanism, primary heat exchangers and moderator all in one block or component. The final assembled block has no welds and limits or eliminates manual operations. This design has the potential to reduce the fabrication time of an entire nuclear reactor to just a few days. 1. A nuclear reactor system formed as an integral block in a plurality of layers , the plurality of layers comprising: a nuclear fuel,', 'a neutron reflector,', 'a gas plenum,', 'a gamma shield, and', 'a neutron shield; and, 'a first layer comprisinga second layer comprising a heat transport system.2. The nuclear reactor system of claim 1 , wherein each of the first layer and the second layer are formed from a plurality of stacked metal sheets.3. The nuclear reactor system of claim 1 , wherein the first layer has the nuclear fuel housed in the center with the neutron reflector claim 1 , the gas plenum claim 1 , the gamma shield claim 1 , the neutron shield and a primary heat exchanger off to a side of the nuclear fuel.4. The nuclear reactor system of claim 3 , wherein the neutron reflector claim 3 , the gas plenum claim 3 , the gamma shield claim 3 , the neutron shield and the primary heat exchanger are situated on both sides of the nuclear fuel.5. The nuclear reactor system of claim 1 , including a third layer comprising a moderator.6. The nuclear reactor system of claim 5 , wherein the moderator is a metal hydride.7. The nuclear reactor system of claim 6 , wherein the metal hydride is Yttrium hydride.8. The nuclear reactor system of claim 1 , wherein the second layer comprises a ...

Magnetic fluid drive unit and magnetic fluid driving method

A magnetic fluid drive unit 100 having a double tube 10 comprising an inner tube 11 and an outer tube 12 formed on the outer side of the inner tube 11 , and a magnetic field applicator 30 installed on the outer side of the double tube 10 , the inner tube 11 having, in the region where a magnetic field is applied by the magnetic field applicator 30 , a high heat conducting region 21 and a low heat conducting region 22 aligned in the lengthwise direction of the inner tube 11 , the inside of the inner tube 11 being a heating medium flow path, and the area between the inner tube 11 and the outer tube 12 being a magnetic fluid flow path.

DEMAND-BASED CHARGING OF A HEAT PIPE

A heat pipe includes one or more reservoirs of liquid that are closed at lower temperatures and open at higher temperatures. The opening of the reservoirs at higher temperatures caused by higher power levels dynamically increases the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. As the heat pipe cools, the liquid condenses and flows back into the reservoirs. As the heat pipe continues to cool, the reservoirs close. The result is a heat pipe that is more efficient at lower power levels and still maintains high efficiency at higher power levels due to the demand-based charging of the liquid based on temperature. 1. A heat pipe comprising:an interface for thermally coupling a heat source to the heat pipe;a substantially horizontal portion charged with a first quantity of liquid and coupled to the interface;a reservoir in a lower portion of the substantially horizontal portion that contains a second quantity of the liquid; anda temperature-actuated valve overlying the reservoir, wherein the temperature-actuated valve seals the second quantity of the liquid in the reservoir when the temperature is below an actuation temperature and unseals the second quantity of liquid in the reservoir when the temperature is above the actuation temperature.2. The heat pipe of wherein claim 1 , when the temperature is above the actuation temperature claim 1 , the first and second quantities of the liquid combine to form a third quantity of the liquid that comprises a sum of the first and second quantities of the liquid.3. The heat pipe of wherein the temperature-actuated valve comprises a bi-metal valve.4. The heat pipe of wherein the bi-metal valve has a first end fixedly attached to an edge of the reservoir with an opposing second end free to move from a first position that seals the reservoir to a second position that unseals the reservoir.5. The heat pipe of wherein the reservoir comprises a valve seat the temperature-actuated ...

DEMAND-BASED CHARGING OF A HEAT PIPE

A heat pipe includes a reservoir of liquid that is connected to a horizontal portion of the heat pipe via a capillary connection. The heat pipe includes a temperature sensor in proximity to a heat interface in the horizontal portion and a controller that controls a heater for the reservoir. As power into the heat pipe increases, the controller turns on the heater, causing the temperature of the liquid in the reservoir to rise. Liquid then passes from the reservoir through the capillary connection into the horizontal portion, thereby dynamically increasing the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. When the heater is off, as the heat pipe cools, the liquid condenses and flows back through the capillary connection into the reservoir. The result is a heat pipe that provides demand-based charging of the liquid based on power level. 1. A heat pipe comprising:an interface for thermally coupling a heat source to the heat pipe;a substantially horizontal portion charged with a first quantity of liquid and coupled to the interface;a reservoir that contains a second quantity of the liquid;a capillary connection that connects the reservoir to the substantially horizontal portion;a heater thermally coupled to the reservoir;a temperature sensor in proximity to the interface; anda controller coupled to the heater and the temperature sensor, wherein the controller detects when temperature detected by the temperature sensor exceeds a predetermined threshold, and in response, turns on the heater.2. The heat pipe of wherein turning on the heater by the controller heats the second quantity of liquid in the reservoir and causes at least a portion of the second quantity of liquid in the reservoir to pass from the reservoir through the capillary connection into the substantially horizontal portion.3. The heat pipe of wherein turning off the heater by the controller causes the liquid in the reservoir to cool and causes at ...

DEMAND-BASED CHARGING OF A HEAT PIPE

A heat pipe includes one or more reservoirs of liquid that are closed at lower temperatures and open at higher temperatures. The opening of the reservoirs at higher temperatures caused by higher power levels dynamically increases the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. As the heat pipe cools, the liquid condenses and flows back into the reservoirs. As the heat pipe continues to cool, the reservoirs close. The result is a heat pipe that is more efficient at lower power levels and still maintains high efficiency at higher power levels due to the demand-based charging of the liquid based on temperature. 1. A method for transferring heat from a heat source using a heat pipe , the method comprising: an interface for thermally coupling the heat source to the heat pipe;', 'a substantially horizontal portion overlying the interface;', 'a reservoir in a lower portion of the substantially horizontal portion that contains liquid; and', 'a temperature-actuated valve overlying the reservoir, wherein the temperature-actuated valve seals the liquid in the reservoir when the temperature is below an actuation temperature and unseals the liquid in the reservoir when the temperature is above the actuation temperature;, 'thermally coupling the heat pipe to the heat source, the heat pipe comprisingthe heat source heating the heat pipe, causing the temperature in the substantially horizontal portion to rise to the actuation temperature;in response to reaching the actuation temperature, the temperature-actuated valve unseals the reservoir, allowing the liquid to pass into the substantially horizontal portion; andas temperature in the substantially horizontal portion falls, the liquid condenses and flows by the force of gravity through the temperature-actuated valve into the reservoir, and when the temperature falls to the actuation temperature, the temperature-actuated valve seals the liquid in the reservoir.2. A method ...

DEMAND-BASED CHARGING OF A HEAT PIPE

A heat pipe includes a reservoir of liquid that is connected to a horizontal portion of the heat pipe via a capillary connection. The heat pipe includes a temperature sensor in proximity to a heat interface in the horizontal portion and a controller that controls a heater for the reservoir. As power into the heat pipe increases, the controller turns on the heater, causing the temperature of the liquid in the reservoir to rise. Liquid then passes from the reservoir through the capillary connection into the horizontal portion, thereby dynamically increasing the amount of liquid in the heat pipe, which increases performance of the heat pipe at higher power levels. When the heater is off, as the heat pipe cools, the liquid condenses and flows back through the capillary connection into the reservoir. The result is a heat pipe that provides demand-based charging of the liquid based on power level. 1. A method for dynamically charging a heat pipe with a liquid , the method comprising: an interface for thermally coupling a heat source to the heat pipe;', 'a substantially horizontal portion charged with a first quantity of liquid and coupled to the interface;', 'a reservoir that contains a second quantity of the liquid;', 'a capillary connection that connects the reservoir to the substantially horizontal portion;', 'a heater thermally coupled to the reservoir;', 'a temperature sensor in proximity to the interface; and', 'a controller coupled to the heater and the temperature sensor;, 'providing the heat pipe comprisingdetecting when the temperature detected by the temperature sensor exceeds a predetermined threshold; andin response to the detecting when the temperature detected by the temperature sensor exceeds the predetermined threshold, turning on the heater to cause at least a portion of the second quantity of liquid in the reservoir to pass from the reservoir through the capillary connection into the substantially horizontal portion.2. The method of further comprising: ...

HEAT EXCHANGERS IN A PETROCHEMICAL PLANT OR REFINERY

A plant or refinery may include equipment such as reactors, heaters, heat exchangers, regenerators, separators, or the like. Types of heat exchangers include shell and tube, plate, plate and shell, plate fin, air cooled, wetted-surface air cooled, or the like. Operating methods may impact deterioration in equipment condition, prolong equipment life, extend production operating time, or provide other benefits. Mechanical or digital sensors may be used for monitoring equipment, and sensor data may be programmatically analyzed to identify developing problems. For example, sensors may be used in conjunction with one or more system components to detect and correct maldistribution, cross-leakage, strain, pre-leakage, thermal stresses, fouling, vibration, problems in liquid lifting, conditions that can affect air-cooled exchangers, conditions that can affect a wetted-surface air-cooled heat exchanger, or the like. An operating condition or mode may be adjusted to prolong equipment life or avoid equipment failure. 1. A system comprising:a reactor;a heater;a heat exchanger;a regenerator;a separator;one or more sensors associated with the heat exchanger; one or more processors of the data collection platform;', 'a communication interface of the data collection platform; and', receive, from the one or more sensors associated with the heat exchanger, sensor data comprising operation information associated with the heat exchanger;', 'correlate the sensor data from the one or more sensors with metadata comprising time data, the time data corresponding to the operation information associated with the heat exchanger; and', 'transmit the sensor data; and, 'memory storing executable instructions that, when executed, cause the data collection platform to], 'a data collection platform comprising one or more processors of the data analysis platform;', 'a communication interface of the data analysis platform; and', receive, from the data collection platform, the sensor data comprising ...

HEAT TRANSFER DEVICE USING CAPILLARY PUMPING

A capillary-driven heat transfer device is adapted to extract heat from a heat source and release this heat to a cold source using a two-phase working fluid. The device includes an evaporator having a microporous mass performing capillary pumping of fluid in the liquid phase, a condenser, a reservoir having an inner chamber and an inlet and/or outlet port, a vapor communication circuit, connecting the outlet of the evaporator to the inlet of the condenser, a liquid communication circuit, and a non-return device arranged between the inner chamber of the reservoir and the microporous mass of the evaporator, and arranged to prevent liquid present in the evaporator from moving to the inner chamber of the reservoir. 1. A capillary-driven heat transfer device , adapted to extract heat from a heat source and to release this heat to a cold source by means of a two-phase working fluid contained in a closed general circuit , comprising:an evaporator, having an inlet and an outlet, and a microporous mass adapted to perform capillary pumping of fluid in the liquid phasea condenser having an inlet and an outlet,a reservoir having an inner chamber, and at least one inlet and/or outlet port,a first communication circuit for fluid mainly in the vapor phase, connecting the outlet of the evaporator to the inlet of the condenser,a second communication circuit for fluid mainly in the liquid phase, connecting the outlet of the condenser to the reservoir and to the inlet of the evaporator,a non-return device arranged between the inner chamber of the reservoir and the microporous mass of the evaporator, and arranged to prevent liquid present in the evaporator from moving back to the inner chamber of the reservoir,the device being mainly under the influence of gravity, the non-return device including a float returned by buoyancy thrust to a seat in the closed state.2. A device according to claim 1 , wherein the float exhibits a density comprised between 60% and 90% of a density of the ...

LIQUID-COOLING HEAT DISSIPATION SYSTEM CAPABLE OF REGULATING WATER QUALITY

A liquid-cooling heat dissipation system capable of regulating water quality includes a first liquid inlet, a first liquid outlet, a heat exchange unit, a sensation unit, a water quality regulating unit for containing and releasing an agent and a control unit. The heat exchange unit has a heat exchanger, a first pump and a mating opening connected with the water quality regulating unit. The sensation unit detects the pH value of a first working liquid and transmits a sensation signal to the control unit. The control unit compares the sensation signal with a preset pH value range to generate and transmit a comparison result to an external interface, whereby the water quality regulating unit is manually controlled to release the agent or not. Alternatively, according to the comparison result, the control unit automatically controls the water quality regulating unit to release the agent or not. 1. A liquid-cooling heat dissipation system capable of regulating water quality , comprising:a first liquid inlet;a first liquid outlet;a heat exchange unit having a mating opening, a heat exchanger communicating with the first liquid inlet and a first pump communicating with the first liquid outlet and the heat exchanger, the first pump serving to drive a first working liquid, which has been heat-exchanged in the heat exchanger;a sensation unit, the sensation unit having at least one pH value sensor disposed in a place where the first working liquid passes through for detecting the pH value of the first working liquid and generating a sensation signal corresponding to the pH value;a water quality regulating unit connected with the mating opening, the water quality regulating unit being manually or automatically operable to control and release an agent contained in the water quality regulating unit to pass through the mating opening into the heat exchange unit, whereby the agent contacts and mixes with the first working liquid; anda control unit connected with the sensation unit ...

HEAT DISSIPATING SYSTEM

A heat dissipating system provided herein comprises a cooling tank for storing a cooling liquid and a heat element, wherein the cooling liquid is phase-changed into a working gas due to thermal energy generated by the heat element; an evaporator installed in the cooling tank for absorbing thermal energy of the working gas; a condenser uncovered by the cooling tank; at least one communicating member communicated with the evaporator and the condenser and filled with a coolant, wherein the coolant is heated in the evaporator and flows to the condenser through the communicating member in a gaseous state, and, after being cooled in the condenser, recovers into a liquid state and then returns to the evaporator through the communicating member; and a first gas driving module for driving air to flow around the condenser. 1. A heat dissipating system , which stores a cooling liquid and dissipates heat generated from a heat element immersed in the cooling liquid , comprising:a cooling tank for storing the cooling liquid and containing the heat element, wherein the cooling liquid is phase-changed into a working gas due to thermal energy generated by the heat element;an evaporator installed in the cooling tank for absorbing thermal energy of the working gas;a condenser uncovered by the cooling tank;at least one communicating member communicated with the evaporator and the condenser and filled with a coolant, wherein the coolant is heated in the evaporator and flows to the condenser through the communicating member in a gaseous state, and, after being cooled in the condenser, recovers into a liquid state and then returns to the evaporator through the communicating member; anda first gas driving module for driving air to flow around the condenser.2. The heat dissipating system according to claim 1 , wherein the heat element comprises a circuit module claim 1 , and the cooling liquid is a dielectric cooling liquid.3. The heat dissipating system according to claim 1 , wherein the ...

Transfer-of-mass system and method for increasing rotational energy output

A transfer-of-mass system for increasing rotational energy output thereof includes a sealed container having a central axis and an outer wall radially spaced apart from the central axis. A liquid partially fills the container. A motor causes the container to rotate about its central axis at a speed of rotation such that the liquid is acted upon by centrifugal forces to move it to the container's outer wall. Energy is applied to the liquid to cause at least a portion of the liquid at the container's outer wall to move towards the container's central axis wherein the container rotates faster than the speed of rotation caused by the motor.

Heat Exchanger

A heat exchanger is described and which includes a heat exchanger portion defining a multiplicity of internal passageways, and wherein at least one of the passageways is defined in part by a wicking structure; and a source of ammonia refrigerant which is supplied to the internal passageways of the heat exchanger portion, and wherein substantial equal amounts of liquid refrigerant are supplied to each of the passageways defined by the heat exchanger portion. 1. A heat exchanger , comprising:a heat exchanger portion defining a multiplicity of internal passageways, and wherein at least one of the passageways is defined, at least in part, by a wicking structure; anda source of an ammonia refrigerant provided at a flow rate, and which is further supplied to the respective internal passageways of the heat exchanger portion, and wherein the source of refrigerant has a vapor and liquid phase, and wherein the source of the ammonia refrigerant is supplied in predetermined amounts to each of the internal passageways which are defined by the heat exchanger portion regardless of the liquid or vapor phase condition of the ammonia refrigerant or the refrigerant flow rate.2. A heat exchanger as claimed in claim 1 , and further comprising:a refrigerant supply assembly mounted in fluid flowing relation relative to each of internal passageways of the heat exchanger portion, and is further coupled in fluid receiving relation relative to a refrigerant distributor, and wherein the refrigerant supply assembly has a weir which controls the flow of the ammonia refrigerant which is supplied to the respective internal passageways of the heat exchanger portion, and wherein the refrigerant supply assembly distributes substantially equally amounts of the ammonia refrigerant to each of the internal passageways.3. A heat exchanger as claimed in claim 2 , and further comprising:a refrigerant delivery conduit coupling, in fluid flowing relation, the refrigerant distributor, and the refrigerant ...

REFRIGERATION DEVICE

A refrigeration device includes: a refrigerator; a heat pipe that includes a condensation unit connected to the refrigerator in a manner that heat exchange is enabled and adapted to condense a refrigerant, includes an evaporation unit connected to a storage chamber housing an object that should be stored in a manner that heat exchange is enabled and adapted to evaporate the refrigerant, and includes a piping circulating the refrigerant between the condensation unit and the evaporation unit; a refrigerant chamber connected to the heat pipe and adapted to pool the refrigerant; and a heater that heats the refrigerant chamber. 1. A refrigeration device comprising:a refrigerator;a heat pipe that includes a condensation unit connected to the refrigerator in a manner that heat exchange is enabled and adapted to condense a refrigerant, includes an evaporation unit connected to a storage chamber housing an object that should be stored in a manner that heat exchange is enabled and adapted to evaporate the refrigerant, and includes a piping circulating the refrigerant between the condensation unit and the evaporation unit;a refrigerant chamber connected to the heat pipe and adapted to pool the refrigerant; anda heater that heats the refrigerant chamber to a temperature higher than that of the evaporation unit.2. The refrigeration device according to claim 1 , whereinthe heater heats the refrigerant chamber so that a temperature difference between the evaporation unit and the refrigerant chamber is 100° C. or more.3. The refrigeration device according to claim 1 , whereina volume of the refrigerant chamber is not less than 1.5 times a volume of the heat pipe. This application is a continuation of International Patent Application No. PCT/JP2018/019112, filed on May 17, 2018, which claims the benefit of priority from Japanese Patent Application No. 2017-113191, filed on Jun. 8, 2017, the entire content of each of which is incorporated herein by reference.The present invention ...

COOLING SYSTEM FOR MOBILE BULK TANKS

A cooling system for a mobile bulk tank can include a heat exchanger disposed to remove heat from a top wall of the mobile bulk tank. A flow system can be configured to move coolant through the heat exchanger to cool the bulk tank. 1. A cooling system for a mobile bulk tank , the mobile bulk tank being configured to be transported by a vehicle , the cooling system comprising:a heat exchanger disposed to remove heat from a top wall of the mobile bulk tank;a reservoir containing coolant; anda flow system at least partly supported by the mobile bulk tank and configured to move the coolant to the heat exchanger to cool the mobile bulk tank.2. The cooling system of claim 1 , wherein the reservoir is supported by and configured to travel with the vehicle.3. The cooling system of claim 1 , wherein the coolant includes liquid nitrogen.4. The cooling system of claim 1 , further comprising:a controller; monitor temperature data for at least one of the mobile bulk tank and the coolant; and', 'control operation of the flow system based upon the temperature data., 'wherein the controller is configured to5. The cooling system of claim 4 , further comprising:a blending device in fluid communication with the reservoir and the flow system;wherein controlling operation of the flow system based upon the temperature data includes controlling the blending device to admit controlled amounts of coolant into the flow system.6. The cooling system of claim 1 , wherein the heat exchanger includes corrugated sheeting secured to the top wall of the mobile bulk tank to provide claim 1 , in combination with the top wall of the mobile bulk tank claim 1 , a plurality of flow ducts for the coolant.7. The cooling system of claim 6 , wherein the corrugated sheeting is secured to the top wall of the mobile bulk tank using an adhesive.8. The cooling system of claim 1 , wherein the flow system includes a flow connection configured to receive an external coolant connection.9. The cooling system of claim 8 ...

Heat Exchanger and Technique for Cooling a Target Space and/or Device Via Stepped Sequencing of Multiple Working Fluids of Dissimilar Saturation Temperatures to Provide Condensation-by-Vaporization Cycles

A system for heat exchange includes a first condenser that places a first working fluid vapor in proximity to a second working fluid liquid. The two working fluids have respective saturation temperatures that enable the second working fluid to absorb sufficient amounts of heat from the first working fluid vapor to vaporize, while the first working fluid vapor condenses back into a liquid. The second working fluid vapor exits the first condenser via a first conduit and enters a first heat exchanger which places the second working fluid vapor in proximity to a third working fluid. The relative saturation temperatures of the second and third working fluids enables the transfer of sufficient amounts of heat from the second working fluid vapor to cause the second working fluid vapor to condense back into liquid while at least a portion of the third working fluid liquid vaporizes into third working fluid vapor.

WASTE HEAT RECOVERY SYSTEM

A waste heat recovery system is disclosed. The waste heat recovery system may include a turbine expander. The turbine expander may include a turbine blade rotatably coupled to a shaft and the shaft may be rotatably engaged with a nozzle ring. The nozzle ring may include a de Laval-nozzle. The waste heat recovery system may additionally include a pressure sensor. The pressure sensor may be located fluidly upstream of the de Laval-nozzle and fluidly downstream of an evaporator. The pressure sensor may be configured to measure pressure of a working fluid and transmit a working fluid pressure signal. Further, the waste heat recovery system may include an electronic controller. The electronic controller may be configured to receive the working fluid pressure signal and transmit a working fluid flowrate adjustment signal in response to the working fluid pressure signal. 1. A waste heat recovery system , comprising:a turbine expander, the turbine expander including a turbine blade, the turbine blade rotatably coupled to a shaft, the shaft rotatably engaged with a nozzle ring, the nozzle ring including a de Laval-nozzle;a pressure sensor, the pressure sensor located fluidly upstream of the de Laval-nozzle and fluidly downstream of an evaporator, the pressure sensor configured to measure pressure of a working fluid and transmit a working fluid pressure signal; andan electronic controller, the electronic controller configured to receive the working fluid pressure signal and transmit a working fluid flowrate adjustment signal in response to the working fluid pressure signal.2. The waste heat recovery system according to claim 1 , further including a temperature sensor located fluidly upstream of the de Laval-nozzle and fluidly downstream of the evaporator claim 1 , the temperature sensor being configured to measure temperature of the working fluid and transmit a working fluid temperature signal claim 1 , and the electronic controller being further configured to receive the ...

EBULLIENT COOLING DEVICE

An ebullient cooling device includes: a coolant passage configured to be formed inside an internal-combustion engine, and allow a coolant that cools the internal-combustion engine by boiling to flow therethrough; an expander configured to be driven by the coolant that has boiled in the internal-combustion engine; a condenser configured to be located at a downstream side of the expander, and cool the coolant that has passed through the expander; and a heat exchanger configured to cool a cooling object by heat exchange with the coolant, wherein a low-pressure region including the expander and the condenser and a high-pressure region other than the low-pressure region are formed in a path through which the coolant circulates, and a passage connecting to a part through which a liquid-phase coolant flows and a passage connecting to the low-pressure region are coupled to the heat exchanger. 1. An ebullient cooling device comprising:a coolant passage configured to be formed inside an internal-combustion engine, and to allow a coolant that cools the internal-combustion engine by boiling to flow therethrough;an expander configured to be driven by the coolant that has boiled in the internal-combustion engine;a condenser configured to be located at a downstream side of the expander, and to cool the coolant that has passed through the expander;a heat exchanger configured to cool a cooling object by heat exchange with the coolant;a passage; anda control valve,wherein a low-pressure region including the expander and the condenser and a high-pressure region other than the low-pressure region are formed in a path through which the coolant circulates,a passage connecting to a part through which a liquid-phase coolant flows and a passage connecting to the low-pressure region are coupled to the heat exchanger,the passage is configured to diverge from the passage connecting to the low-pressure region and to be communicated with the coolant passage formed inside the internal-combustion ...

Vehicle cooling system using gravity based fluid flow

This disclosure relates to techniques for implementing a cooling system for a vehicle heat-generating component wherein a two-phase coolant flows between a heat sink module and a heat radiator module. The heat radiator module can be mounted at a higher elevation within the vehicle than the heat sink module. High and low temperature fluid paths can fluidly couple the heat sink module and the heat radiator module. The heat sink module can be coupled to a heat-generating component. As the coolant is heated at the heat sink module by heat from the heat-generating component, it can change to a substantially gaseous phase and move, primarily by force of buoyancy, to the heat radiator module via the high temperature fluid path. As the coolant is cooled by the heat radiator module, it can change to a substantially liquid phase and move, primarily by force of gravity, to the heat sink module.

Cryogenic Intermediate Temperature Storage System and Method

The present invention provides devices and methods for the cryogenic storage of biological material. Devices of the invention are useful for storing material at a predetermined cryogenic temperature. An intermediate storage chamber (ITC) set within an adiabatic Dewar container includes a set, or multiple, heat transfer pipes that passively act to maintain a set temperature or temperature range. Some embodiments utilize an inner heat pipe to transfer heat out to a heat sink and an outer heat pipe to transfer heat into the ITC from a cool sink. The heat pipes may be arranged, designed, and/or tilled to conduct heat energy only when set parameters beyond the predetermined range are experienced within the ITC. The method of maintaining a predetermined temperature range by means of a heat sink and cool sink are taught herein. 1. A system to maintain environmental temperature within a chamber adapted to contain biological tissues , said system comprising:a. a chamber comprising insulating walls, an interior with an interior space and an exterior;b. an inner heat pipe comprising an IHP evaporator thermally coupled with said chamber, said inner heat pipe further comprising an IHP condenser thermally coupled with a heat sink: andc. an outer heat pipe comprising an OHP condenser thermally coupled with said chamber, said outer heat pipe further comprising an OHP evaporator thermally coupled with a cool sink.2. The system of wherein said inner heat pipe comprising a first contained working fluid claim 1 , and said outer heat pipe comprising a second contained working fluid claim 1 , wherein said inner heat pipe first working fluid and said second working fluid comprise the same chemical formula.3. The system of further comprising an insulating capsule containing said heat sink claim 1 , said inner heal pipe claim 1 , and said chamber.4. The system of further comprising an insulating block set between said chamber and said heat sink.5. The system of wherein said capsule ...

Cooling device

A cooling device includes a plurality of heat receiving parts each disposed on one of a plurality of heat generating bodies, and having a refrigerant evaporation space in which a portion of a refrigerant is evaporated in the refrigerant evaporation space by heat of one of the plurality of heat generating bodies, a heat dissipating part condensing the refrigerant evaporated in the plurality of heat receiving parts, a refrigerant supply path through which the refrigerant condensed by the heat dissipating part to transition into a liquid-phase refrigerant flowing toward the plurality of heat receiving parts, and a refrigerant reflux path through which a gas-liquid multiphase flow of the liquid-phase refrigerant and the refrigerant evaporated in the heat receiving parts to transition into a gas-phase refrigerant flowing toward the heat dissipating part.

HEAT STORAGE SYSTEM, HEAT STORAGE CONTAINER, HEAT STORAGE DEVICE USING HEAT STORAGE CONTAINER AND WARM-UP DEVICE USING HEAT STORAGE DEVICE

A heat storage system using a heat storage container having a tubular body, an adsorbent that is accommodated in the tubular body, generates heat by adsorption of an adsorbate and absorbs heat by desorption of the adsorbate, and a flow channel that penetrates the tubular body in a longitudinal direction, the heat storage system comprising 1. A heat storage system using a heat storage container having a tubular body , an adsorbent that is accommodated in the tubular body , generates heat by adsorption of an adsorbate and absorbs heat by desorption of the adsorbate , and a flow channel that penetrates the tubular body in a longitudinal direction , the heat storage system comprisinga diffusion layer for transporting the adsorbate in liquid phase from the flow channel to the adsorbent, whereinthe adsorbate is transported to the flow channel, the adsorbate is transported to the diffusion layer, a part of the adsorbate transported to the diffusion layer is adsorbed on the adsorbent, the adsorbent releases heat, and the remaining adsorbate is vaporized by the heat to become heat transport fluid.2. The heat storage system according to claim 1 , whereinthe heat transport fluid is transported to a heat exchanger to be phase-changed from a vapor phase to a liquid phase.3. The heat storage system according to claim 1 , whereinthe diffusion layer is a structure having a capillary structure.4. A heat storage container comprising:a tubular body;an adsorbent that is accommodated in the tubular body, generates heat by adsorption of an adsorbate and absorbs heat by desorption of the adsorbate;a flow channel that penetrates the tubular body in a longitudinal direction; anda diffusion layer provided between the adsorbent and the flow channel.5. The heat storage container according to claim 4 , whereinthe flow channel penetrates the adsorbent.6. The heat storage container according to claim 4 , further comprisinga holding member that holds a shape of the adsorbent.7. The heat storage ...

SYSTEM AND METHOD FOR TRANSFERRING HEAT BETWEEN TWO UNITS

A thermal switching device is presented. The thermal switching device includes a plurality of serpentine capillaries having a first end and a second end, where the first end is configured to be operatively coupled to a heating unit and the second end is configured to be operatively coupled to a cooling unit, and where the plurality of serpentine capillaries is configured to transfer heat from the heating unit to the cooling unit by circulating a working fluid in the plurality of serpentine capillaries. 1. A thermal switching device , comprising:a plurality of serpentine capillaries having a first end and a second end, wherein the first end is configured to be operatively coupled to a heating unit and the second end is configured to be operatively coupled to a cooling unit, and wherein the plurality of serpentine capillaries is configured to transfer heat from the heating unit to the cooling unit by circulating a working fluid in the plurality of serpentine capillaries.2. The thermal switching device of claim 1 , wherein the plurality of serpentine capillaries is configured to transfer the heat from the heating unit to the cooling unit when a temperature of the working fluid is above a threshold temperature.3. The thermal switching device of claim 2 , wherein the plurality of serpentine capillaries is configured to circulate the working fluid in the plurality of serpentine capillaries without use of a pumping unit.4. The thermal switching device of claim 1 , further comprising:a reservoir configured to house the working fluid; andan inlet valve operatively coupled to the reservoir and the plurality of serpentine capillaries and configured to permit flow of the working fluid between the reservoir and the plurality of serpentine capillaries.5. The thermal switching device of claim 1 , wherein one or more dimensions of the plurality of serpentine capillaries are customized based on a choice of the working fluid.6. The thermal switching device of claim 1 , wherein an ...

THERMAL MANAGEMENT USING ENDOTHERMIC HEAT SINK

A thermal management system includes a slurry generator, an injector pump coupled to the slurry generator, a heat exchanger reactor coupled to the injector pump, wherein the heat exchanger reactor is adapted to subject a thermally expendable heat absorption material to a temperature above 60° C. and a pressure below 3 kPa, and wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product. A vapor cycle system is coupled to the heat exchanger reactor and is operatively connected to a thermal load. A thermal energy storage system may be coupled to the vapor cycle system and the thermal load. The thermal energy storage system may isolate the heat exchanger reactor from thermal load transients of the thermal load. 1. A method for managing heat transfer of a thermal load , the method comprising:providing a thermal management system comprising a heat exchanger reactor containing an expendable heat absorption material;applying heat from a thermal load to the thermal management system at a temperature between approximately 18-30° C. using a thermal load coolant;transferring heat from the thermal load to a transfer fluid at a temperature above approximately 60° C. creating a heated transfer fluid, wherein the heated transfer fluid is introduced into the heat exchanger reactor;transferring heat from the heated transfer fluid into the expendable heat absorption material, wherein the expendable heat absorption material endothermically decomposes into a gaseous by-product; andmaintaining the thermal load coolant within a specified temperature range independent of heat load dynamics.2. The method of claim 1 , comprising applying the heat from the thermal load at a steady rate.3. The method of claim 1 , comprising applying the heat from the thermal load at an unsteady rate.4. The method of claim 1 , comprising calculating an amount of heat transfer from the thermal load to the expendable heat absorption material.5. The method of claim 1 , ...

COOLING DEVICE WITH A PRESSURE ADJUSTER

A cooling device includes a sink, a first tube, a second tube, a heat exchanger, a pressure adjuster, and a dielectric liquid. The sink has a first outlet and a second outlet. The first tube has a first outlet connected to the first outlet of the sink, and a second outlet. The second tube has a first outlet connected to the second outlet of the sink, and a second outlet. The heat exchanger has a first outlet connected to the second outlet of the first tube, a second outlet connected to the second outlet of the second tube, and a third outlet. The pressure adjuster has an outlet connected to the third outlet of the heat exchanger. A heating element is placed in the sink and immersed in the dielectric liquid. The size of the pressure adjuster is defined by a volume of a vaporization status of the dielectric liquid. 1. A cooling device comprising:a sink comprising a first holding space, a first outlet and a second outlet;a first tube comprising a first outlet and a second outlet wherein the first outlet of the first tube is connected to the first outlet of the sink;a second tube comprising a first outlet and a second outlet wherein the first outlet of the second tube is connected to the second outlet of the sink;a heat exchanger comprising a second holding space, a first outlet, a second outlet and a third outlet wherein the first outlet of the heat exchanger is connected to the second outlet of the first tube, and the second outlet of the heat exchanger is connected to the second outlet of the second tube;a pressure adjuster comprising a third holding space and an outlet wherein the outlet of the pressure adjuster is connected to the third outlet of the heat exchanger; anda dielectric liquid placed in at least the sink and the second tube;wherein a heating element is placed in the sink and immersed in the dielectric liquid to dissipate heat from the heating element to the dielectric liquid, and a size of the third holding space is defined by a volume of a vaporization ...

COOLING SYSTEMS AND METHODS

The present disclosure provides methods and systems for cooling a heat source. Systems for cooling a heat source may comprise a closed loop fluid flow path under vacuum. The closed loop fluid flow path may comprise one or more channels, coolant, a condenser, and one or more cooling interfaces. The closed loop fluid flow path may comprise a shut-off valve for directing coolant to the at least one cooling interface. During use, a heat source may be cooled by directing a liquid coolant to a cooling interface to form a vapor coolant, directing a vapor coolant from the cooling interface to the condenser, and subjecting the vapor coolant to phase transition to regenerate the liquid coolant. 1. A cooling system , comprising:a first channel that is configured to direct a liquid coolant;a second channel that is configured to direct a vapor coolant generated from said liquid coolant;a condenser that is configured to permit said vapor coolant to undergo phase transition to said liquid coolant; andat least one cooling interface in fluid communication with said first channel and said second channel, wherein said at least one cooling interface comprises (i) a coolant inlet comprising a shut-off valve for directing said liquid coolant from said first channel towards said second channel; (ii) at least one heat exchange unit for permitting heat to flow from a source of thermal energy to said liquid coolant from said coolant inlet, thereby permitting said liquid coolant to undergo phase transition to said vapor coolant; and (iii) a coolant outlet to permit said vapor coolant to flow from said at least one heat exchange unit to said second channel.2. The system of claim 1 , further comprising a flow generator in fluid communication with said first channel or said second channel.3. The system of claim 1 , wherein said system is operated at a pressure of less than about 1 atmosphere.4. The system of claim 1 , wherein said shut-off valve is a float valve.5. The system of claim 4 , ...

PASSIVE SPLIT HEAT RECOVERY SYSTEM

A heat pipe heat exchanger is used in combination with a damper assembly to selectively control an amount of heat exchange provided. A divider defines discrete heat pipe plenums and bypass plenums within a duct, and the heat pipe system is configured so that all of the coils of one portion of the heat pipe system are received in the heat pipe plenum(s), while the bypass plenum(s) are free of any coils. The damper assembly includes adjustable heat pipe dampers aligned with the heat pipe plenums and adjustable bypass dampers aligned with the bypass plenums. 1. A heat exchanger for exchanging heat between first and second duct portions of a ventilation system , the heat exchanger comprising:a divider that is configured to be installed in the ventilation system in the first duct portion to divide the first duct portion into at least a first heat pipe plenum, a second heat pipe plenum, and a bypass plenum;a heat pipe system comprising a refrigerant, the heat pipe system including a first heat pipe portion and a second heat pipe portion that is configured to be fluidly connected to the first heat pipe portion such that the refrigerant can flow through the heat pipe system between the first heat pipe portion and the second heat pipe portion, the first heat pipe portion being configured to be installed in the ventilation system so that at least one heat pipe segment of the first heat pipe portion is located in each of the first and second heat pipe plenums such that heat is transferrable between the first heat pipe portion and air flowing through the first and second heat pipe plenums, the bypass plenum being free of any heat pipe segments of the heat pipe system, the second heat pipe portion being configured to be installed in the ventilation system such that heat is transferrable between the second heat pipe portion and air flowing through the second duct portion; anda damper assembly configured to be mounted across the first duct portion and configured to be selectively ...

DEVICE TEMPERATURE ADJUSTING APPARATUS

A device temperature adjusting apparatus in which working fluid circulates is mounted on a vehicle and controls a temperature of a target device. The device temperature adjusting apparatus includes a heat absorbing portion that evaporates the working fluid by causing the working fluid to absorb heat from the target device, and a heat releasing portion condenses the working fluid by causing heat release from the working fluid. The device temperature adjusting apparatus includes a forward path portion that defines a forward flow passage and a return path portion. The heat releasing portion is disposed in an inside air circulation path through which inside air circulates while vehicle interior air conditioning is performed by an air conditioning unit that blows out temperature-controlled air to an interior of the vehicle. 1. A device temperature adjusting apparatus mounted on a vehicle , and controlling a temperature of a target device by a phase transition of working fluid between a liquid phase and a gas phase , the working fluid circulating in the device temperature adjusting apparatus , the device temperature adjusting apparatus comprising:a heat absorbing portion that evaporates the working fluid by causing the working fluid to absorb heat from the target device;a heat releasing portion disposed above the heat absorbing portion, and condensing the working fluid by causing heat release from the working fluid;a forward path portion that defines a forward flow passage through which the working fluid flows from the heat releasing portion to the heat absorbing portion; anda return path portion that defines a return flow passage through which the working fluid flows from the heat absorbing portion to the heat releasing portion, whereinthe heat releasing portion is disposed in an inside air circulation path through which inside air circulates while vehicle interior air conditioning is performed by an air conditioning unit that blows out temperature-controlled air to an ...

SYSTEMS AND METHODS FOR HEAT BALANCE AND TRANSPORT FOR AIRCRAFT HYDRAULIC SYSTEMS

A thermal management system includes a first hydraulic system for circulating a first hydraulic fluid at a first temperature and a second hydraulic system for circulating a second hydraulic fluid at a second temperature that is higher than the first temperature. The thermal management system also includes a sealed heat transfer device coupled between the first hydraulic system and the second hydraulic system. The sealed heat transfer device is not in flow communication with either of the first hydraulic system and the second hydraulic system. The sealed heat transfer device is configured to transfer heat from the second hydraulic fluid to the first hydraulic fluid. 1. A thermal management system comprising:a first hydraulic system for circulating a first hydraulic fluid at a first temperature;a second hydraulic system for circulating a second hydraulic fluid at a second temperature that is higher than the first temperature; anda sealed heat transfer device comprising at least one thermosyphon coupled between said first hydraulic system and said second hydraulic system, said sealed heat transfer device is not in flow communication with either of said first hydraulic system and said second hydraulic system, wherein said sealed heat transfer device is configured to transfer heat from the second hydraulic fluid to the first hydraulic fluid.2. The thermal management system of claim 1 , wherein said sealed heat transfer device extends across a distance of at least three feet such that all components in flow communication with said first hydraulic system are located at least three feet from all components in flow communication with said second hydraulic system.3. The thermal management system of claim 1 , wherein said at least one thermosyphon comprises:a cold interface coupled to said first hydraulic system;a hot interface coupled to said second hydraulic system;a substantially sealed tube extending longitudinally between said cold interface and said hot interface; anda ...

METHOD FOR MANUFACTURING HEAT DISSIPATION DEVICE

A method for manufacturing a heat dissipation device is disclosed. The heat dissipation device includes a first basic structural body having a wick structure formed on one side surface thereof; and the first basic structural body and the wick structure are structural bodies formed layer by layer. Two pieces of first basic structural bodies can be correspondingly closed together to construct a heat dissipation device internally defining an airtight chamber. In this manner, the heat dissipation device can be designed and manufactured in a more flexible manner. 1. A method for manufacturing a heat dissipation device , comprising the following steps:forming a first basic structural body layer by layer for constructing a heat dissipation device;forming a wick structure on one side surface of the first basic structural body and forming all remaining structural portions for constructing the heat dissipation device; andperforming evacuation, working fluid filling and final sealing processes for the constructed heat dissipation device.2. The method for manufacturing the heat dissipation device as claimed in claim 1 , wherein the first basic structural body is formed using a material selected from the group consisting of stainless steel claim 1 , copper claim 1 , aluminum claim 1 , titanium claim 1 , ceramic claim 1 , titanium alloys claim 1 , commercially pure titanium claim 1 , and non-metal materials.3. The method for manufacturing the heat dissipation device as claimed in claim 1 , wherein the first basic structural body for constructing the heat dissipation device is formed layer by layer through a manner selected from the group consisting of 3D printing claim 1 , multi-material injection molding claim 1 , thermal spraying claim 1 , printing claim 1 , and electrochemical processing.4. The method for manufacturing the heat dissipation device as claimed in claim 1 , wherein the first basic structural body is formed layer by layer using materials in a form selected from the ...

DEVICE TEMPERATURE REGULATOR

A device temperature regulator includes a forward passage in which a forward flow passage is formed to cause a working fluid to flow to a heat absorber from a heat radiator, and a backward passage in which a backward flow passage is formed to cause the working fluid to flow to the heat radiator from the heat absorber. In addition, the device temperature regulator includes a bubble generator, which generates a bubble in the working fluid collecting in the heat absorber and having a liquid phase, and a controller that causes the bubble generator to generate the bubble in a precondition is satisfied. 1. A device temperature regulator in which a working fluid circulates and which regulates a temperature of a target device by a phase change between a liquid phase and a gas phase of the working fluid , the device temperature regulator comprising:a heat absorber that causes the working fluid to absorb heat from the target device, so as to evaporate the working fluid;a heat radiator that is arranged above the heat absorber and that causes the working fluid to radiate heat, so as to condense the working fluid;a forward passage in which a forward flow passage is provided, the forward flow passage causing the working fluid to flow to the heat absorber from the heat radiator;a backward passage in which a backward flow passage is provided, the backward flow passage causing the working fluid to flow to the heat radiator from the heat absorber;a bubble generator that generates a bubble in the working fluid collecting in the heat absorber and having the liquid phase; anda controller configured to cause the bubble generator to generate the bubble when a circulation flow rate of the working fluid circulating in a fluid circulation circuit configured of the heat radiator, the forward passage, the heat absorber and the backward passage is a specified flow rate or less.2. The device temperature regulator according to claim 1 , whereinthe controller causes the bubble generator to ...

Refrigeration system, and in-vehicle refrigeration system

A refrigeration system includes a primary evaporator that cooperates with a compressor, which compresses first refrigerant containing lubricant oil, to form a refrigeration cycle that circulates the first refrigerant. At the primary evaporator, the first refrigerant absorbs heat from second refrigerant and is thereby evaporated. The refrigeration system further includes a condenser, at which the second refrigerant releases heat to the first refrigerant and is thereby condensed. The refrigeration system also includes a secondary evaporator that cooperates with the condenser to form a refrigerant circulation circuit, in which the second refrigerant is circulated. At the secondary evaporator, the secondary evaporator absorbs heat from a primary cooling subject and is thereby evaporated. A refrigerant flow passage of the primary evaporator and a refrigerant flow passage of the condenser are independently formed, so that the refrigeration cycle and the refrigerant circulation circuit are independently formed.

DEVICE TEMPERATURE REGULATOR

A device temperature regulator is provided with a gas passage part that guides a gaseous working fluid evaporated in a device heat exchanger to a condenser, and a liquid passage part that guides a liquid working fluid condensed in the condenser to the device heat exchanger. The device temperature regulator is provided with a supply amount regulator that increases or decreases a supply amount of the liquid working fluid supplied to the device heat exchanger. The supply amount regulator decreases the supply amount of the liquid working fluid to the device heat exchanger such that a liquid surface is formed in a state where the gaseous working fluid is positioned at a lower side lower than a heat exchanging portion exchanging heat with a temperature regulation target device in the device heat exchanger, when a condition for keeping the temperature regulation target device at a temperature is satisfied. 1. A device temperature regulator capable of regulating a temperature of at least one temperature regulation target device , the device temperature regulator comprising:a device heat exchanger configured to absorb heat from the temperature regulation target device and to evaporate a liquid working fluid;a condenser that is disposed above the device heat exchanger to condense a gaseous working fluid evaporated in the device heat exchanger;a gas passage part configured to guide the gaseous working fluid evaporated in the device heat exchanger to the condenser;a liquid passage part configured to guide the liquid working fluid condensed in the condenser to the device heat exchanger; anda supply amount regulator configured to increase or decrease a supply amount of the liquid working fluid to the device heat exchanger, wherein the supply amount regulator is configured to decrease the supply amount of the liquid working fluid supplied to the device heat exchanger, such that a liquid surface is formed in a state where the gaseous working fluid is positioned at a lower side ...

THERMAL MANAGEMENT WITH VARIABLE CONDUCTANCE HEAT PIPE

Photonic and electronic integrated circuits can be cooled using variable conductance heat pipes containing a non-condensable gas in addition to a phase-changing working fluid. To package the heat pipe with a subassembly including the integrated circuits in a standard housing providing a heat sink contact area, the heat pipe is oriented, in some embodiments, with its axis between evaporator and condenser ends substantially perpendicular to the direction along which the integrated circuit subassembly is separated from the heat sink contact area, and a portion of the exterior surface of the heat pipe is thermally insulated, with a suitable thermal insulation structure, from the heat sink contact area. 1. A thermally managed optical package comprising:an optical subassembly comprising a photonic integrated circuit;a housing surrounding the optical subassembly, a portion of the housing forming a heat sink contact area; andsandwiched between the optical subassembly and the housing, a variable conductance heat pipe and a thermal insulation structure, the variable conductance heat pipe being in thermal contact with the photonic integrated circuit at a first end of the heat pipe and in thermal contact with the heat sink contact area of the housing at a second end of the heat pipe and configured to cool the photonic integrated circuit by heat transfer to the heat sink contact area, the thermal insulation structure insulating an exterior surface portion of the variable conductance heat pipe at the first end from the heat sink contact area of the housing.2. The optical package of claim 1 , wherein an axis of the heat pipe extending from the first end to the second end is oriented substantially parallel to the heat sink contact area.3. The optical package of claim 2 , wherein the heat pipe comprises first and second surface portions on mutually opposite sides of the axis in a direction perpendicular to the axis claim 2 , the photonic integrated circuit placed adjacent the first ...

HEAT TRANSPORT DEVICE AND PROJECTOR

A heat transport device includes a loop heat pipe configured in the form of a loop, and a control unit configured to control an amount of heat generated by a heat generating part when the loop heat pipe starts up. The loop heat pipe includes an evaporating unit configured to receive heat of a heat generating part as a cooling target and evaporate a hydraulic fluid, a condensing unit configured to radiate heat and condense vapor obtained by evaporation of the hydraulic fluid, a vapor pipe which connects the evaporating unit and the condensing unit to each other, and a liquid pipe which connects the condensing unit and the evaporating unit to each other. 1. A heat transport device comprising: an evaporating unit configured to receive heat of a heat generating part as a cooling target and evaporate a hydraulic fluid,', 'a condensing unit configured to radiate heat and condense vapor obtained by evaporation of the hydraulic fluid,', 'a vapor pipe which connects the evaporating unit and the condensing unit to each other, and', 'a liquid pipe which connects the condensing unit and the evaporating unit to each other; and, 'a loop heat pipe configured in the form of a loop, the loop heat pipe including'}a control unit configured to control an amount of heat generated by the heat generating part when the loop heat pipe starts up.2. The heat transport device according to claim 1 , further comprisinga temperature detection unit configured to detect a temperature of at least one of the evaporating unit and the heat generating part,wherein the control unit is configured to temporarily set the amount of heat generated by the heat generating part to a rated amount of heat generated or larger when the detected temperature is lower than a predetermined temperature.3. The heat transport device according to claim 1 , further comprisingan elapsed time measuring unit configured to measure an elapsed time from startup of the cooling target,wherein the control unit is configured to ...

DEVICE TEMPERATURE REGULATOR

A device temperature regulator is provided with a device heat exchanger that functions as an evaporator at the time of cooling a temperature regulation target device and that functions as a heat radiator at the time of warming up the temperature regulation target device, and a condenser that condenses a gaseous working fluid. The device temperature regulator is provided with a heater that heats the working fluid collecting in a device fluid circuit, and a liquid amount regulator that regulates a liquid amount of the working fluid collecting in the device heat exchanger. The device heat exchanger includes a heat exchange portion that exchanges heat with the temperature regulation target device. The liquid amount regulator regulates the liquid amount of the liquid working fluid collecting in the device heat exchanger. 1. A device temperature regulator capable of regulating a temperature of at least one temperature regulation target device , the device temperature regulator comprising:a device heat exchanger configured to function as an evaporator in which a liquid working fluid is evaporated by absorbing heat from the temperature regulation target device at the time of cooling the temperature regulation target device, and to function as a heat radiator in which a gaseous working fluid is condensed to radiate heat to the temperature regulation target device at the time of warming up the temperature regulation target device;a condenser that is disposed above the device heat exchanger to condense a gaseous working fluid evaporated in the device heat exchanger at the time of cooling the temperature regulation target device;a gas passage part configured to guide the gaseous working fluid evaporated in the device heat exchanger to the condenser;a liquid passage part configured to guide the liquid working fluid condensed in the condenser to the device heat exchanger;at least one heater configured to heat the working fluid in a device fluid circuit that is configured to ...

SWITCHABLY ACTIVATED HEAT TRANSFER WITH MAGNETIC FLUID

An apparatus includes a heat pipe with a fluid path. A first part of the fluid path is thermally coupled to a first region of a higher temperature and a second part of the fluid path thermally is coupled to a second region of a lower temperature. A difference between the higher temperature and the lower temperature induces a flow of a magnetic fluid in the fluid path. A switchable magnetic device is magnetically coupled to the fluid path. Activation of the switchable magnetic device reduces the flow of the magnetic fluid in the fluid path, which reduces heat transfer from the first region to the second region. 1. An apparatus comprising:a heat transfer mechanism comprising a fluid path, a first part of the fluid path thermally coupled to a first region of a higher temperature and a second part of the fluid path thermally coupled to a second region of a lower temperature, a difference between the higher temperature and the lower temperature inducing a flow of a magnetic fluid in the fluid path; anda switchable magnetic device magnetically coupled to the fluid path, activation of the switchable magnetic device reducing the flow of the magnetic fluid in the fluid path, which reduces heat transfer from the first region to the second region.2. The apparatus of claim 1 , wherein the switchable magnetic device comprises an electrical coil.3. The apparatus of claim 1 , wherein the first region comprises a controller of a storage device claim 1 , and the second region comprises a non-volatile claim 1 , solid-state memory of the storage device claim 1 , the switchable magnetic device being deactivated to thermally anneal the non-volatile claim 1 , solid-state memory.4. The apparatus of claim 1 , further comprising a Peltier heat pump coupled between the first region and the heat transfer mechanism claim 1 , the Peltier heat pump being activated when the switchable magnetic device is deactivated to assist in the heat transfer from the first region to the second region.5. The ...

THERMOELECTRIC MODULE WITH FASTENING ELEMENT THERMAL ISOLATION FEATURE FOR VEHICLE BATTERY

A thermoelectric module assembly for thermally conditioning a component includes first and second members that are spaced apart from one another and are configured to respectively provide cold and hot sides. An insulator plate is arranged between the first and second members. A thermoelectric device is arranged within the insulator plate and is operatively engaged with the first and second members. A fastening element secures the first and second members to one another about the insulator plate in an assembled condition. A thermal insulator is provided in one of the first and the second members and is configured to receive the fastening element. 1. A thermoelectric module assembly for thermally conditioning a component , the assembly comprising:first and second members are spaced apart from one another and are configured to respectively provide cold and hot sides;an insulator plate is arranged between the first and second members;a thermoelectric device is arranged within the insulator plate and is operatively engaged with the first and second members;a fastening element secures the first and second members to one another about the insulator plate in an assembled condition; anda thermal insulator is provided in one of the first and second members and is configured to receive the fastening element.2. The assembly according to claim 1 , wherein the first and second members are metallic and the insulator plate is a plastic.3. The assembly according to claim 1 , wherein the fastening element is metallic and the thermal insulator is non-metallic.4. The assembly according to claim 1 , wherein the second heat member includes a raised pad supporting the thermoelectric device.5. The assembly according to claim 4 , comprising a thermal foil arranged between and in engagement with the pad and the thermoelectric device.6. The assembly according to claim 4 , wherein the thermoelectric device is a Peltier device.7. The assembly according to claim 1 , wherein the insulator plate ...

Heat dissipation module and electronic device

A heat dissipation module being disposed in an electronic device is provided. The electronic device has a heat source. The heat dissipation module includes an evaporator, a pipe, a magnetic field generator and a plurality of magnetic powder. The heat source is heat conducting to the evaporator. The pipe is connected to the evaporator to form a loop therewith, and a working fluid is filled in the loop. The magnetic field generator is disposed outside of the evaporator. The magnetic powder is movably disposed in the evaporator. A magnetic field generated by the magnetic field generator drives the magnetic powder to form a channel in the evaporator where the working fluid passes through. The heat generated by the heat source is transmitted to the evaporator, and the working fluid in liquid phase absorbs the heat and is phase-transited to vapor phase and flows from the evaporator towards the pipe.

PHASE-CHANGE COOLING APPARATUS AND PHASE-CHANGE COOLING METHOD

A phase-change cooling apparatus according to an exemplary aspect of the present invention includes heat receiving means; refrigerant liquid driving means for circulating the refrigerant liquid; a first refrigerant flow path in which the refrigerant liquid flowing away from the refrigerant liquid driving means circulates through the heat receiving means and the heat radiating means; a second refrigerant flow path of a flow path shortening the first refrigerant flow path in such a way that a branched refrigerant liquid being at least part of the refrigerant liquid flowing away from the refrigerant liquid driving means toward the heat receiving means circulates without passing through the heat receiving means and the heat radiating means; and control means for controlling a flow rate of a heat-receiving-side refrigerant liquid being a refrigerant liquid flowing into the heat receiving means based on a flow rate of the branched refrigerant liquid. 1. A phase-change cooling apparatus , comprising:a heat receiver configured to hold a refrigerant liquid to receive heat from a heat-generating source;a heat radiator configured to release heat of refrigerant vapor produced by evaporation of the refrigerant liquid in the heat receiver and produce the refrigerant liquid;a refrigerant liquid driving section configured to circulate the refrigerant liquid;a first refrigerant flow path in which the refrigerant liquid flowing away from the refrigerant liquid driving section circulates through the heat receiver and the heat radiator;a second refrigerant flow path of a flow path shortening the first refrigerant flow path in such a way that a branched refrigerant liquid being at least part of the refrigerant liquid flowing away from the refrigerant liquid driving section toward the heat receiver circulates without passing through the heat receiver and the heat radiator; anda controller configured to control a flow rate of a heat-receiving-side refrigerant liquid being a refrigerant ...

HEAT CAPTURE, TRANSFER AND RELEASE FOR INDUSTRIAL APPLICATIONS

Embodiments of the invention provide systems and methods for heat transfer at temperatures in the range of −40° C. to 1,300° C. over long distances with minimal heat losses. The systems consist of advanced heat pipes configured such that they fit inside drilling holes or in horizontal distance over industrial plants, and effectively transfer heat requiring minimal water, CO, or steam injection, and that operate without user intervention for many years. 129.-. (canceled)30. A heat management system comprising one or more heat transfer devices selected from the group consisting of conventional heat pipes , advanced heat pipes , thermosyphons , heat spreaders , pulsating or loop heat pipes , steam pipes or combinations thereof assembled into an entity providing continuous thermal communication adapted to capture , transfer , and release heat at temperatures in the range of −40° C. to 1 ,300° C. at a distance of from 0.1 m to 14 km with a temperature loss from capture to release between 0% and 40% of a temperature at a source of the heat to be transferred , wherein the heat thus transported is from one or more heat sources , and wherein the heat transfer devices capture or provide heat for at least one application.31. A heat management system comprising a plurality of heat transfer devices selected from the group consisting of conventional heat pipes , advanced heat pipes , thermosyphons , heat spreaders , pulsating or loop heat pipes , steam pipes , or combinations thereof assembled into an entity providing continuous thermal communication , adapted to capture , transfer , and release heat at temperatures in the range of −40° C. to 1 ,300° C. at a distances of from 0.1 m to 14 km , with a temperature loss from capture to release between 0% and 40% of a temperature at a source of the heat to be transferred , wherein the heat thus transferred is from one or more heat sources , and wherein the heat transfer devices capture or provide heat for at least one application.32. ...

Flat heat pipe with reservoir function

A flat heat pipe with a two-phase liquid-vapor working fluid, includes a first plate receiving thermal energy from a heat source, a second plate transferring thermal energy to a cold source, an edge to form a hermetically sealed enclosed internal space, a capillary structure interposed between the first and second plates, vaporization channels adjacent to the first plate, condensation channels adjacent to the second plate, a transfer passage placing the evaporation channels in communication with the condensation channels for the transport of vapor, and a collection channel forming a reservoir, in fluid communication with each condensation channel. The collection channel is adjacent to the second plate, such that the collection channel can pump and store the excess liquid phase.

Partitioned, Rotating Condenser Units to Enable Servicing of Submerged IT Equipment Positioned Beneath a Vapor Condenser Without Interrupting a Vaporization-Condensation Cycling of the Remaining Immersion Cooling System

An immersion cooling tank includes: a tank comprised of a base wall, and perimeter walls, and having a lower tank volume in which a liquid can be maintained and heated to a boiling point to generate a rising plume of vapor; a rack structure within the tank volume that supports insertion of multiple, heat dissipating electronic devices in a side-by-side vertical configuration; and a condenser configured as a plurality of individually rotatable condenser sub-units, with each condenser sub-unit located above a vertical space that extends vertically from the lower tank volume and within which an electronic device can be inserted. Each individual condenser sub-unit can be opened independent of the other sub-units and each other condenser sub-unit can remain in a closed position while a first condenser sub-unit is opened to allow access to a first vertical space and any existing electrical device contained therein below the first condenser sub-unit. 1. A method for providing access to a lower volume of an operating immersion cooling tank , the method comprising:providing, within an upper volume of the immersion cooling tank, a condenser configured as a plurality of individually rotatable condenser sub-units, with each condenser sub-unit located above a vertical space that extends vertically from the lower tank volume and within which an electronic device can be inserted, wherein each individual condenser sub-unit can be opened independent of the other sub-units and each other condenser sub-unit can remain in a closed position while a first condenser sub-unit is opened to allow access to a first vertical space and any existing electrical device contained therein below the first condenser sub-unit; andoperating at least one heat dissipating electrical device within the lower volume.2. The method of claim 1 , wherein providing the condenser further comprises connecting each of the plurality of condenser sub-units at one end via a hinge mechanism to the immersion cooling tank ...

DUAL-MODE THERMAL MANAGEMENT LOOP

A system may include a pump, an evaporator, a condenser, an accumulator, a pump bypass line, a first valve, and a second valve. The system may operate in a powered-pump mode, in which the pump drives fluid circulation, the first valve prevents fluid circulation through the pump bypass line, the pump pumps liquid from the accumulator to the evaporator, gas exiting the evaporator flows to the condenser, liquid exiting the evaporator flows through the second valve to the accumulator, and liquid exiting the condenser flows to the accumulator. The system may operate in a passive-capillary mode, in which capillary pressure in the evaporator drives fluid circulation, the first valve prevents fluid circulation through the pump, liquid flows from the accumulator, through the pump bypass line, and to the evaporator, gas exiting the evaporator flows to the condenser, the second valve is closed, and liquid exiting the condenser flows the accumulator. 1. A dual-mode thermal management loop system configured to operate in either a powered-pump mode or a passive-capillary mode , wherein the dual-mode thermal management loop system comprises:a pump; an evaporator in fluid receiving communication with the pump; a condenser in fluid receiving communication with the evaporator; an accumulator in fluid receiving communication with the evaporator and the condenser; a pump bypass line in fluid communication with the accumulator; a first valve in fluid communication with the evaporator;and a second valve in fluid communication with the evaporator; the pump drives fluid circulation;', 'the first valve prevents fluid circulation through the pump bypass line;', 'the pump pumps liquid from the accumulator to the evaporator;', 'gas exiting the evaporator flows to the condenser;', 'liquid exiting the evaporator flows through the second valve to the accumulator; and', 'liquid exiting the condenser flows to the accumulator;, 'wherein in the powered-pump mode capillary pressure in the evaporator ...

Two-phase thermal loop with membrane separation

A thermal management loop system may include an accumulator, an evaporator in fluid receiving communication with the accumulator, a condenser in fluid receiving communication with the evaporator, and a membrane separator in fluid receiving communication with the condenser. Gas exiting the membrane separator may recirculate back to the condenser and liquid exiting the membrane separator may flow to the accumulator. The thermal management loop system may be a dual-mode system and thus may be operable in a powered-pump mode or a passive-capillary mode.

TWO-PHASE THERMAL LOOP WITH ROTARY SEPARATION

A thermal management loop system may include an accumulator, an evaporator in fluid receiving communication with the accumulator, a condenser in fluid receiving communication with the evaporator, and a rotary separator in fluid receiving communication with the condenser. Gas exiting the rotary separator may recirculate back to the condenser and liquid exiting the rotary separator may flow to the accumulator. The thermal management loop system may be a dual-mode system and thus may be operable in a powered-pump mode or a passive-capillary mode. 1. A thermal management loop system comprising:an accumulator;an evaporator in fluid receiving communication with the accumulator;a condenser in fluid receiving communication with the evaporator; anda rotary separator in fluid receiving communication with the condenser, the rotary separator configured to recirculate gas to the condenser and to provide liquid to the accumulator2. The thermal management loop system of claim 1 , wherein the rotary separator is a centrifugal rotary separator.3. The thermal management loop system of claim 1 , further comprising a flow sensor coupled to the rotary separator claim 1 , wherein identifying a heat transfer load on the thermal management loop system is based on flow data received from the flow sensor.4. The thermal management loop system of claim 1 , further comprising a pump that drives fluid circulation claim 1 , wherein the pump pumps liquid from the accumulator to the evaporator.5. The thermal management loop system of claim 4 , further comprising a valve in fluid communication between the evaporator and the accumulator claim 4 , wherein liquid exiting the evaporator flows through the valve to the accumulator.6. The thermal management loop system of claim 5 , wherein the valve comprises a back pressure valve that controls back pressure in the evaporator.7. The thermal management loop system of claim 5 , wherein the valve controls flow of gas from the evaporator.8. The thermal ...

COMPUTING INFRASTRUCTURE

An affordable, highly trustworthy, survivable and available, operationally efficient distributed supercomputing infrastructure for processing, sharing and protecting both structured and unstructured information. A primary objective of the SHADOWS infrastructure is to establish a highly survivable, essentially maintenance-free shared platform for extremely high-performance computing (i.e., supercomputing)—with “high performance” defined both in terms of total throughput, but also in terms of very low-latency (although not every problem or customer necessarily requires very low latency)—while achieving unprecedented levels of affordability at its simplest, the idea is to use distributed “teams” of nodes in a self-healing network as the basis for managing and coordinating both the work to be accomplished and the resources available to do the work. The SHADOWS concept of “teams” is responsible for its ability to “self-heal” and “adapt” its distributed resources in an “organic” manner. Furthermore, the “teams” themselves are at the heart of decision-making, processing, and storage in the SHADOWS infrastructure. Everything that's important is handled under the auspices and stewardship of a team 1. A dynamically reconfigurable computing infrastructure comprising:a datacenter; and (a) a memory;', '(b) at least one processor;', '(c) a first component configured to perform computing and data processing functions which further comprise secure communications and access controls;', '(d) a second component configured to recognize and differentiate between computing nodes and further distinguish between at least one of an authorized object, an unauthorized object, subject, and interaction;', '(e) a third component configured to establish trust between computing nodes and collaborate with computing nodes to establish teams of nodes;', '(f) a fourth component configured to process byzantine agreement logic;', '(g) a fifth component configured to mutually associate nodes contained ...

TWO-PHASE THERMAL LOOP WITH ROTARY SEPARATION

A thermal management loop system may include an accumulator, an evaporator in fluid receiving communication with the accumulator, a condenser in fluid receiving communication with the evaporator, and a rotary separator in fluid receiving communication with the condenser. Gas exiting the rotary separator may recirculate back to the condenser and liquid exiting the rotary separator may flow to the accumulator. The thermal management loop system may be a dual-mode system and thus may be operable in a powered-pump mode or a passive-capillary mode. 1. A dual-mode thermal management loop system configured to operate in either a powered-pump mode or a passive-capillary mode , wherein the dual-mode thermal management loop system comprises:a controller having a processor; and identifying, by the processor, a heat transfer load on the dual-mode thermal management loop system;', 'determining, by the processor, whether the heat transfer load exceeds a predetermined threshold;', 'in response to determining that the heat transfer load does not exceed the predetermined threshold, operating, by the processor, the dual-mode thermal management loop system in the passive-capillary mode; and', 'in response to determining that the heat transfer load exceeds the predetermined threshold, operating, by the processor, the dual-mode thermal management loop system in the powered-pump mode., 'a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the dual-mode thermal management loop system to perform operations comprising2. The dual-mode thermal management loop system of claim 1 , wherein identifying the heat transfer load comprises detecting a flow of fluid in a rotary separator that is fluidly coupled between a condenser and an accumulator.3. The dual-mode thermal management loop system of claim 1 , wherein identifying the heat transfer load ...

CONTROL AND SWITCH DESIGN FOR MULTIPLE PHASE CHANGE LOOPS

A cooling system includes an evaporator, connected through fluid lines to a first condenser, a second condenser, a compressor, and a thermal expansion valve. One or more valves are arranged in the fluid lines. The one or more valves operated to, in a first mode, circulate fluid between the evaporator the first condenser; in a second mode, circulate the fluid between a) the evaporator and the first condenser, and b) the evaporator, the second condenser, and the thermal expansion valve, and; in a third mode, circulate the fluid between a) the evaporator and the first condenser, and c) the evaporator, the compressor, the second condenser, and the thermal expansion valve.

CAPILLARY PUMP ASSISTED HEAT PIPE

A heat transport device includes a heat pipe having a capillary container having a wick and a working fluid arranged therein. A first heat source is coupled to a first end of the capillary container to define an evaporator section and a cold sink is coupled to a second end of the capillary container to define a condenser section. A capillary pump includes an evaporator and a reservoir configured to store an additional supply of working fluid. A second heat source coupled to the evaporator is configured to vaporize the working fluid arranged therein. A fluid loop couples the capillary pump to the heat pipe. Upon detection of a predetermined condition indicative that a majority of the working fluid within the heat pipe is frozen, the capillary pump is configured to supply vaporized working fluid to the heat pipe. 1. A heat transport device comprising: a capillary container including a wick and a working fluid arranged therein;', 'a first heat source coupled to a first end of the capillary container to define an evaporator section of the heat pipe; and', 'a cold sink coupled to a second, opposite end of the capillary container to define a condenser section of the heat pipe;, 'a heat pipe including an evaporator;', 'a reservoir containing an additional supply of working fluid and being configured to supply working fluid to the evaporator; and', 'a second heat source coupled to the evaporator and configured to vaporize the working fluid arranged therein, and, 'a capillary pump includinga fluid loop coupling the capillary pump to the heat pipe, wherein upon detection of a predetermined condition indicative that a majority of the working fluid within the heat pipe is frozen, the capillary pump is configured to supply vaporized working fluid to the heat pipe.2. The heat transport device according to claim 1 , wherein the vaporized working fluid supplied from the capillary pump to the heat pipe is configured to melt the frozen working fluid.3. The heat transport device ...

Cooling apparatus and electronic device

A cooling apparatus includes: an evaporator in which a coolant is housed and that evaporates the coolant; a condenser that condenses the coolant evaporated by the evaporator; a pathway section that includes a vapor path and a liquid path each placing the inside of the evaporator and the inside of the condenser in communication with each other, and that circulates the coolant between the evaporator and the condenser; a valve that is provided to at least one path out of the vapor path or the liquid path; and a pressure regulation section that increases an opening amount of the valve according to an increase in pressure inside the evaporator.

ACTIVE CONTROL FOR TWO-PHASE COOLING

A cooling system includes a device to be cooled and a cooling device integrated with the device to be cooled. A cooling volume has cavities and active coolant flow controls configured to adjust coolant flow through the cavities. A reservoir is in fluid communication with the cavities and has a liquid outlet and an inlet for a gas or gas-liquid mixture. A two-phase coolant is in the reservoir and cavities. The two-phase coolant has a phase transition temperature between an ambient temperature and an expected device temperature. A capacitance sensor is configured to determine a coolant capacitance in the cavities. A control module is configured to determine a vapor quality and void fraction of the coolant based on the measured capacitance and to increase coolant flow if the determined vapor quality and void fraction indicate a dry-out condition. A secondary cooling line removes heat from the cooling device.

REFRIGERANT DISTRIBUTION DEVICE AND COOLING APPARATUS

In order to supply a refrigerant to multiple-stage heat receivers equally while saving space, a refrigerant distribution device to distribute a refrigerant supplied from the upper stream according to the present invention includes a main body including a side wall part, an upper face part and a bottom face part, an upstream pipe provided on the upper face part in a manner communicating with an inside of the main body, a downstream pipe provided in a state partially inserted inside the main body via an under face hole part provided in the bottom face part, a tributary pipe provided in the side wall part or the bottom face part in a manner communicating with the inside of the main body, and a refrigerant direction changing means provided between the upstream pipe and the downstream pipe. 1. A refrigerant distribution device to distribute a refrigerant supplied from an upper stream comprising:a main body including a side wall part, an upper face part and a bottom face part;an upstream pipe provided on the upper face part in a manner communicating with an inside of the main body;a downstream pipe provided in a state partially inserted inside the main body via an under face hole part provided in the bottom face part;a tributary pipe provided on the side wall part or the bottom face part in a manner communicating with an inside of the main body; anda refrigerant direction changer provided between the upstream pipe and the downstream pipe.2. The refrigerant distribution device according to claim 1 , wherein the refrigerant direction changer is provided in a manner making a refrigerant descending from the upstream pipe into the inside of the main body flow into an area different from an area of the downstream pipe.3. The refrigerant distribution device according to claim 1 , wherein the refrigerant direction changing means is a direction changing board to change direction of a flow of the refrigerant descending into the inside of the main body.4. The refrigerant ...

Heat Transport Apparatus

A heat transport apparatus that is thermally connectable to an object to be temperature adjusted includes a plurality of heat pipes thermally connected along a heat transport direction to form a heat transport path. The heat transport apparatus is used under an environment at or below a melting point of a working fluid of at least one heat pipe among the plurality of heat pipes. 1. A heat transport apparatus that is thermally connectable to an object to be temperature adjusted , comprising:a plurality of heat pipes thermally connected along a heat transport direction to form a heat transport path,the heat transport apparatus being used under an environment at or below a melting point of a working fluid of at least one heat pipe among the plurality of heat pipes.2. The heat transport apparatus according to claim 1 , wherein one end of the heat transport path is thermally connected to a temperature adjusting mechanism claim 1 , and types and/or numbers of the heat pipes are selected in such a manner that a heat transport capability at the one end is greater than a heat transport capability at another end.3. The heat transport apparatus according to claim 1 , further comprising a heater thermally connected to at least one of the plurality of heat pipes.4. The heat transport apparatus according to claim 1 , wherein a part of or an entirety of the heat transport path is accommodated in an accommodating member that is thermally connectable to the plurality of heat pipes and the object to be temperature adjusted.5. The heat transport apparatus according to claim 1 , wherein a working fluid of at least one heat pipe among the plurality of heat pipes has a melting point different from a melting point of that of the other heat pipe.6. The heat transport apparatus according to claim 1 , wherein neighboring heat pipes are thermally connected by thermally connecting end portion side surfaces thereof with each other.7. The heat transport apparatus according to claim 1 , wherein ...

Heat Transfer Device

A refrigeration and/or heat transfer device includes a heating section and cooling section, a release member, and a one-way check valve affixed together in a continuous loop so working fluid may flow in one direction therein. The heating section absorbs heat and transfers such heat to the working fluid, thereby heating, expanding and increasing pressure upon the working fluid therein. The pressurized working fluid is released in a regulated manner from the heating section to the cooling section, thereby carrying the heat away. The released working fluid cools and transfers its heat to the surroundings within the cooling section. As released working fluid enters the cooling section, such fluid displaces already cooled working fluid, pushing such fluid through the one-way check valve back into the heating section to absorb heat. The working fluid may undergo a phase change or remain in a single phase throughout to enhance heat transfer. 1. A heat transfer device comprising:a heating section having an inlet and outlet, wherein a working fluid absorbs heat from a heat source and is pressurized in said heating section without an electro-mechanical compressor;a cooling section having and inlet and outlet;a one-way check valve in fluid communication with said cooling section outlet and said heating section inlet to restrict the flow of said working fluid through said device to a single direction;a vaporization expansion evaporation section wherein the pressurized, heated working fluid is allowed to expand, thus absorbing ambient heat from a space surrounding said vaporization expansion evaporation section; andwherein said working fluid is pressurized and flows within said device without requiring gravity or an electro-mechanical pump.2. The heat transfer device of claim 1 , wherein said working fluid in said cooling section transfers heat into an area adjacent a portion of said cooling section.3. The heat transfer device of claim 1 , wherein said working fluid in said ...

HEAT DISSIPATING SYSTEM

A heat dissipating system provided herein comprises a cooling tank for storing a cooling liquid and a heat element, wherein the cooling liquid is phase-changed into a working gas due to thermal energy generated by the heat element; an evaporator installed in the cooling tank for absorbing thermal energy of the working gas; a condenser uncovered by the cooling tank; at least one communicating member communicated with the evaporator and the condenser and filled with a coolant, wherein the coolant is heated in the evaporator and flows to the condenser through the communicating member in a gaseous state, and, after being cooled in the condenser, recovers into a liquid state and then returns to the evaporator through the communicating member; and a first gas driving module for driving air to flow around the condenser. 1. A heat dissipating system , which stores a cooling liquid and dissipates heat generated from a heat element immersed in the cooling liquid , comprising:a cooling tank for storing the cooling liquid and containing the heat element, wherein the cooling liquid is phase-changed into a working gas due to thermal energy generated by the heat element;an evaporator installed in the cooling tank for absorbing thermal energy of the working gas;a condenser uncovered by the cooling tank;at least one communicating member communicated with the evaporator and the condenser and filled with a coolant, wherein the coolant is heated in the evaporator and flows to the condenser through the communicating member in a gaseous state, and, after being cooled in the condenser, recovers into a liquid state and then returns to the evaporator through the communicating member; anda first gas driving module for driving air to flow around the condenser.2. The heat dissipating system according to claim 1 , wherein the heat element comprises a circuit module claim 1 , and the cooling liquid is a dielectric cooling liquid.3. The heat dissipating system according to claim 1 , wherein the ...

HEAT EXCHANGER

A heat pipe heat exchanger is used in combination with a damper assembly to selectively control an amount of heat exchange provided. A divider defines discrete heat pipe plenums and bypass plenums within a duct, and the heat pipe system is configured so that all of the coils of one portion of the heat pipe system are received in the heat pipe plenum(s), while the bypass plenum(s) are free of any coils. The damper assembly includes adjustable heat pipe dampers aligned with the heat pipe plenums and adjustable bypass dampers aligned with the bypass plenums. The damper assembly can include a single actuator that simultaneously opens the heat pipe dampers and closes the bypass dampers and simultaneously closes the heat pipe dampers and opens the bypass dampers. 1. A heat exchanger for exchanging heat between a first duct portion and a second duct portion in a ventilation system , the heat exchanger comprising:a divider that is configured to be installed in the ventilation system in the first duct portion to divide the first duct portion into at least one heat pipe plenum and at least one bypass plenum;a heat pipe system comprising a refrigerant, the heat pipe system including a first heat pipe portion and a second heat pipe portion, the second heat pipe portion being fluidly connected to the first heat pipe portion such that the refrigerant can flow through the heat pipe system between the first heat pipe portion and the second heat pipe portion, the first heat pipe portion being configured to be installed in the first duct portion so that at least one heat pipe segment of the first heat pipe portion is located in the heat pipe plenum such that heat is transferrable between the first heat pipe portion and air flowing through the heat pipe plenum, the bypass plenum being free of any heat pipe segment of the heat pipe system, the condenser portion being configured to be installed in the second duct portion such that heat is transferrable between the second heat pipe ...

Cooling system and electronic equipment

A cooling system includes a heat absorbing device which has a first pipe port and absorbs heat discharged from equipment by using refrigerant; a radiator which has a second pipe port placed higher than the first pipe port and cools the refrigerant; a first flexible pipe whose one end is connected with the first pipe port and whose another end is connected with the second pipe port and through which the refrigerant flows and which can bend freely; and a loading table having a surface which becomes higher in a vertical direction as approaching from one end of the surface to another end, and on which the first flexible pipe is placed so as to become higher in the vertical direction as approaching from a side of the first flexible pipe, which is connected with the first pipe port, to a side of the first flexible pipe which is connected with the second pipe port.

Thermosiphon blocks and thermosiphon systems for heat transfer

The present invention relates to transfer of heat by thermosiphon blocks, thermosiphons or thermosiphon systems configured to be used or assembled to transfer heat. Thermosiphon block configured for a refrigerant to circulate between a first header and a second header interconnected with a fluid communicator arrangement comprising multiple MPE-tubes with fins in-between. The first header may have a receiving volume adapted to receive liquid refrigerant and to distribute the liquid refrigerant to the second header via a liquid communicator. The bock may be sealed. The invention also relates to a thermosiphon system comprising at least a first thermosiphon block. The first thermosiphon block may be configured as an evaporator with the receiving volume in the first header connected to a condenser. The thermodynamic system may have a piping between the first thermosiphon block and the condenser. The first thermosiphon block may be configured to be placed inside of a building, housing or a cabinet.

ACTIVE CONTROL FOR TWO-PHASE COOLING

A cooling system includes a device to be cooled and a cooling device integrated with the device to be cooled. A cooling volume has cavities and active coolant flow controls configured to adjust coolant flow through the cavities. A reservoir is in fluid communication with the cavities and has a liquid outlet and an inlet for a gas or gas-liquid mixture. A two-phase coolant is in the reservoir and cavities. The two-phase coolant has a phase transition temperature between an ambient temperature and an expected device temperature. A capacitance sensor is configured to determine a coolant capacitance in the cavities. A control module is configured to determine a vapor quality and void fraction of the coolant based on the measured capacitance and to increase coolant flow if the determined vapor quality and void fraction indicate a dry-out condition. A secondary cooling line removes heat from the cooling device. 1. A cooling system , comprising:a cooling volume comprising cavities and active coolant flow controls in the cavities configured to adjust coolant flow through the cavities;a reservoir in fluid communication with the cavities comprising a liquid outlet and an inlet for a gas or a gas-liquid mixture;a two-phase coolant in the reservoir and cavities; anda control module configured to determine a vapor quality and void fraction of the coolant based on a measured coolant capacitance in the cavities and to increase coolant flow if the determined vapor quality and void fraction indicate a dry-out condition.2. The cooling system of claim 1 , further comprising a pump configured to pump liquid coolant from the reservoir into the cavities.3. The cooling system of claim 2 , wherein the pump is embedded in the device4. The cooling system of claim 1 , wherein the cavities comprise a wicking material.5. The cooling system of claim 1 , wherein the cooling system is a single claim 1 , field-replaceable unit.6. The cooling system of claim 1 , wherein the two-phase coolant has a ...

COOLING DEVICE AND PROJECTOR

A cooler includes an evaporator and a condenser. The evaporator includes a housing, a wick, and a groove member having a plurality of vapor flow channels through which working fluid changed in phase from a liquid phase to a gas phase flows, the groove member being coupled to the wick. The housing includes a heat receiver to which the heat is transferred from a cooling target. The groove member includes a plurality of plate-like members, arranged side by side along a predetermined direction, and constituting the plurality of vapor flow channels. Each of the plate-like members includes a bent part formed by bending a part of the plate-like member, the bent part being coupled to the heat receiver.

A COOLING ARRANGEMENT FOR COOLING OF AN ELECTRIC MACHINE AND AT LEAST ONE FURTHER COMPONENT OF AN ELECTRIC POWER UNIT AND A VEHICLE COMPRISING SUCH A COOLING ARRANGEMENT

A cooling arrangement for an electric machine () and at least one further component () of an electric power unit: The cooling arrangement comprises an oil circuit (), an oil pump () circulating oil to the electric machine (), a first coolant circuit () configured to cool the further component () of the electric power unit, and coolant radiator arrangement () in which the coolant in the first coolant circuit () is cooled by air, The oil circuit () comprises an oil radiator (), an oil radiator fan () configured to provide an adjustable air flow through the oil radiator () and a heat exchanger () in which heat is transferred between the coolant in the first coolant circuit () and the oil in the oil circuit (). 1. A cooling arrangement for an electric machine and at least one further component of an electric power unit , whereinthe cooling arrangement comprises an oil circuit, an oil pump circulating oil from the oil circuit to the electric machine;a first coolant circuit configured to cool the further component of the electric power unit, and a coolant radiator arrangement in which the coolant in the first coolant circuit is cooled by air;the oil circuit comprises an oil radiator, an oil radiator fan located and configured to provide an adjustable air flow through the oil radiator; anda heat exchanger in which heat is transferred between the coolant in the first coolant circuit and the oil in the oil circuit.2. A cooling arrangement according to claim 1 , wherein the oil radiator is arranged in a position upstream of the heat exchanger and the oil radiator is arranged in a position upstream of the electric machine in the oil circuit.3. A cooling arrangement according to claim 1 , further comprising the cooling arrangement comprises a control unit configured to control the cooling of the oil in the oil radiator.4. A cooling arrangement according to claim 3 , wherein the control unit is configured to control the speed of the oil radiator fan.5. A cooling arrangement ...

COOLING DEVICE AND REFRIGERANT RELAY DEVICE

[Problem] To provide a cooling device able to efficiently cool heat from a heat generating body. 1. A refrigerant relay device , comprising:a casing that retains liquid-phase refrigerant and gas-phase refrigerant;a refrigerant inflow opening that allows the liquid-phase refrigerant to flow into the casing therethrough;a refrigerant outflow opening that allows the gas-phase refrigerant to flow out of the casing therethrough; anda refrigerant inflow piping one end part of which is connected to the refrigerant inflow opening, at the other end part of which an opening part is formed, and that allows the liquid-phase refrigerant flowing into the refrigerant inflow opening to flow into the casing from the opening part, wherein a cylindrical casing that has an opening at least at one end part thereof; and', 'a lid part on which the refrigerant inflow opening is formed and that closes the opening of the cylindrical casing, and, 'the casing is formed into a cylindrical shape and includesthe opening part is disposed so as to face a bottom part of the casing.2. The refrigerant relay device according to claim 1 , wherein the other end part of the refrigerant inflow piping is formed so as to extend toward a bottom part of the casing.3. The refrigerant relay device according to claim 1 , wherein the other end part of the refrigerant inflow piping is formed so as to extend in a lower vertical direction.4. The refrigerant relay device according to claim 1 , wherein the one end part of the refrigerant inflow piping is attached to the refrigerant inflow opening of the lid part.5. The refrigerant relay device according to claim 4 , wherein one or more vapor tubes that allow gas-phase refrigerant to flow into the casing are connected to the cylindrical casing claim 4 , and an extending direction of each connecting part between one of the vapor tubes and the cylindrical casing is set so as not to pass through a central part in a cross section of the cylindrical casing when the ...

Thermochemical Heat Storage Unit

The present disclosure relates to thermochemical heat storage units. The teachings thereof may be embodied in systems and methods for operating, including charging and discharging, a thermochemical heat storage unit. For example, a method for operating a thermochemical heat storage unit may include: producing a first steam and feeding it to a heat exchanger; partially condensing the steam with release of its thermal energy, in the heat exchanger; subsequently pressurizing water condensed from the steam; feeding the pressurized water to the heat exchanger; evaporating the water into a second steam; and storing at least a portion of the second steam in a steam storage unit.

Cooling device and data center provided with same

A cooling device has a circulation passage that annularly connects heat receiving part, heat radiation passage, heat radiation part, and feedback passage in order, and working fluid housed in the circulation passage, and check valve provided on an upstream side of heat receiving part. Heat radiation part has a liquefying chamber and a cooling water chamber separated by a partition plate. The liquefying chamber has a first connection part connected to heat radiation passage at an upper part of liquefying chamber, and a second connection part connected to feedback passage at a lower part of liquefying chamber, and has a plurality of first heat radiation fins fixed to the partition plate, and having a plurality of openings or cutouts. The cooling water chamber has a cooling water inlet, a cooling water outlet, and a plurality of second heat radiation fins that separate a passage from the cooling water inlet to the cooling water outlet into a plurality of parallel passages.