Air conditioning device

The purpose of the present invention is to provide an air conditioning device configured so that the heat transfer performance of an indoor heat exchanger during cooling operation is higher than that of conventional air conditioning devices. An air conditioning device (100) is provided with: an internal heat exchanger (20) for exchanging heat between a refrigerant flowing through refrigerant piping between an outdoor heat exchanger (3) and an expansion device (4), and a refrigerant flowing through refrigerant piping between the expansion device (4) and an indoor heat exchanger (5); a pressure detection device (31); a first temperature detection device (32) for detecting the temperature of a refrigerant flowing into the expansion device (4) during cooling operation; and a control unit (51) configured so that, during cooling operation, the control unit (51) controls the degree of opening of the expansion device (4) on the basis of the results of detection by the pressure detection device ...

VANNE DE SECURITE POUR LE MAINTIEN EN VENTILATION D'UNE ENCEINTE DE CONFINEMENT

L'INVENTION CONCERNE UNE VANNE DE SECURITE 32 POUR LE MAINTIEN EN VENTILATION D'UNE ENCEINTE DE CONFINEMENT 10 LORSQUE LA PRESSION ABSOLUE REGNANT DANS CETTE ENCEINTE S'ELEVE AU-DESSUS D'UN SEUIL DONNE. LA VANNE COMPREND UN EQUIPAGE 46 MOBILE SELON UN AXE VERTICAL, SOLLICITE EN POSITION D'OUVERTURE PAR SON POIDS EVENTUELLEMENT REGLABLE AU MOYEN D'UN LEST 70. LA VANNE EST NORMALEMENT MAINTENUE FERMEE PAR LES PRESSIONS DE L'ENCEINTE 12 ET D'UN CIRCUIT DE SECOURS 24 QUI AGISSENT RESPECTIVEMENT SUR AU MOINS UNE PAROI 52A, 52B DE L'EQUIPAGE MOBILE ET SUR LA FACE SUPERIEURE DU CLAPET 50. APPLICATION AUX ENCEINTES DE CONFINEMENT UTILISEES NOTAMMENT EN BIOLOGIE (VIRUS, BACTERIES) ET POUR TRAITER DES MATIERES RADIOACTIVES.

Air regulation system for regulation of air in room of e.g. laboratory, has air flow register for adjusting pressure, thermal battery for adjusting temperature, and variable flow regulator for adjusting humidity in room

... « Système et installation de régulation d'air dans une pièce et pièce équipée d'un tel système et/ou d'une telle installation » L'invention concerne un système (100) de régulation d'air dans une pièce (102) comprenant : - au moins un moyen (116) d'ajustement de la pression dans ladite pièce (102), - au moins un moyen (118) d'ajustement de la température dans ladite pièce (102), et - au moins un moyen (114) d'ajustement de l'hygrométrie dans ladite pièce (102) ; caractérisé en ce que lesdits moyens (114-116) sont commandés par un régulateur unique (104). Elle concerne également uns installation de régulation d'air dans au moins une pièce comprenant un tel système et une pièce équipée d'un tel système ou d'une telle installation.

Safety unit for the controlled closure of ventilation ducts

A unit (1) for the controlled closure of ventilation ducts (2) of the type that passes from the inside of an enclosed space (3) to the outside and comprises appropriate protective grilles (4, 5) on the openings. The internal space (3) in turn comprises a flow control cock (7) on the fuel supply pipe (7a). The unit (1) comprises a kit (8) for flow control and closure of the duct (2) controlled by the cock (7). The kit (8) is in the configuration for closing the duct (2) when the cock (7) is in the condition for closing the pipe (7a) and therefore the flow of fuel is blocked, and in the configuration for opening the duct (2) when the cock (7) is in the condition for opening the pipe (7a) and the flow of fuel is allowed.

PROCEEDED OF DETERMINATION OF THE LEVEL OF FILLING OF FILTERS AIR HAS

APPARATUS FOR PREVENTING OUTSIDE AIR FROM FLOWING INTO TRAIN PASSENGER ROOM AND METHOD FOR PREVENTING OUTSIDE AIR FROM FLOWING INTO TRAIN PASSENGER ROOM BY USING SAME

본 발명에 따르면, 출입문을 통해 외부공기가 유입되는 것을 방지하기 위한 열차객실 외부공기 유입방지장치로서, 상기 열차객실 외부공기 유입방지장치는, 열차객실 바닥부에 설치되는 하측 외부공기 유입방지장치를 포함하며, 상기 하측 외부공기 유입방지장치는, 상기 열차객실의 대향하는 양측 출입문과 정렬되도록 열차객실의 폭방향으로 형성되는 하부덕트, 열차객실 내부공기를 상기 양측 출입문측으로 가역방향으로 송풍하도록 상기 하부덕트에 설치된 하부팬 및, 열차객실의 폭방향으로 상기 하부팬의 양측에 위치하도록 하부덕트 상면에 형성된 하부통풍구를 포함하는 것을 특징으로 하는 열차객실 외부공기 유입방지장치 및 이를 이용한 열차객실 외부공기 유입방지방법이 제공된다.

MOTORIZED DAMPER

The present invention relates to a motorized damper, comprising: an interior pressure sensor (90) mounted in an area between a fan and a shutter (30), and measuring pressure inside the fan when driving the fan; an exterior pressure sensor (91) mounted in an exterior area of the shutter (30), and measuring exterior pressure applied to the fan from the outside of the shutter (30); a stepper motor (10) capable of variably adjusting an opening and closing speed to be slow or fast; a control circuit (70) linked to the interior pressure sensor (90) and the exterior pressure sensor (91), and controlling the opening and closing speed and a time of opening and closing of the stepper motor (10); and a shutter (30) being opened and closed by power transferred from the stepper motor (10), thereby capable of opening and closing the damper with relatively less force by using the stepper motor. COPYRIGHT KIPO 2017 ...

A DEVICE FOR MEASURING THE VOLUME FLOW OF A FAN

A measuring device for measuring a pressure difference (DELTAp) and thereby the volume flow (qv) of a fan by carrying out the measuring of the pressure difference (DELTAp) in a two-chamber measuring part (2) located in the pressure aperture or its continuation in the fan, each chamber having small-diameter apertures (5), that inner surface (8) of the measuring-device housing (1) against which or close to which the measuring part (2) is located being the tongue (10) or tongue plate (9) of the fan mantle, or a continuation of these. The measuring part (2) is installed inside the housing (1) in such a manner that the direction (F) of the flow to be measured is substantially perpendicular to the length (C) of the measuring part.

Temperature control system

A temperature control system used in association with a heating and cooling system supplying warm or cool air to a duct system for maintaining accurate temperature in a zone of multiple zones utilizing a microcomputer based thermostat for modulating a damper assembly in the duct system feeding the zone, thereby controlling the volume of air flow in the duct system to the zone to match the load in each zone. The thermostat has a digital readout display thereon indicating the temperature to be maintained in the zone and which can selectively display the duct temperature of air and/or the zone temperature of the air. The thermostat controls a damper assembly which includes a stepper motor for pivoting the damper blade between open and closed positions with the duct temperature sensor located before the damper blade in the duct. Calibration to provide setting of the zone temperature to conform with an accurate thermometer is provided in the thermostat, as well as selectable stop positions for ...

AIR-CONDITIONING SYSTEM MANAGEMENT DEVICE

A management apparatus for an air-conditioning system is obtained which can divide a layout drawing into regions for each monitored space, and establish correspondence between each equipment device arranged in individual regions and its block identification information. On the basis of positional information 300 and block information, block information 500 for a region corresponding to an installation position is assigned to each equipment device, and a plurality of equipment devices are divided for each piece of the block information 500 to perform at least one of monitoring of status and control of an operation.

DEVICE AND METHOD FOR ADJUSTING INTERNAL PRESSURE OF VENTILATED CLOSED SPACE RECEIVING CHANGE IN EXTERNAL PRESSURE

PROBLEM TO BE SOLVED: To observe a comfortableness criterion for a user by providing compensating circuits to adjust an air taking-in flow rate and an extracting flow rate in real time, and keeping internal pressure in a space on a constant level by algebraically compensating a leakage flow rate with a difference in a flow rate in an adjusting device of internal pressure of a ventilated closed space receiving a change in external pressure. SOLUTION: Compensating circuits 5 and 6 have a ventilator 10 and a control mechanism 11 of an instantaneous flow rate. An adjusting system 12 imparts an operation signal to operation mechanisms 14 and 15 to drive a control mechanism 11 in real time by using a signal outputted from a pressure sensor 13. An external sensor is added to anticipate the action on turbulence caused by a change in external pressure Pe by measuring pressure Pi of a space. A difference between an air taking-in flow rate q1 and an extracting flow rate q2 algebraically compensates ...

DATA CENTRE AND APPARATUS AND METHOD FOR DATA CENTRE COOLING

According to one embodiment of the present invention, there is provided an apparatus for cooling a data centre. The apparatus comprises an air conditioning unit for supplying cooled air to a cold portion of a data centre, an airflow measurement device for measuring a rate of bypass airflow through a segregation between the cold portion and hot portion of the data centre, and outputting a bypass airflow signal indicative of the rate of bypass airflow between the cold portion and the hot portion, and a control unit arranged to receive the bypass airflow signal from the airflow measurement device and to output a control signal to a means for controlling a rate of the bypass airflow to maintain a predetermined rate of bypass airflow.

Blower system and control system therefor

An automatic control system for high pressure blower applications prevents surging under variable supply flow rate requirements and achieves maximum efficiency of operation. The supply flow rate establishes the set point of a proportional plus reset controller, the latter receiving a feedback signal corresponding to the static discharge pressure of the supply blower and responding thereto for controlling the output of the supply blower. A return blower is controlled either through a characterizer relay in proportion to the control of the supply blower to maintain a fixed precalibrated relationship between supply and return flow rates or by a further proportional plus reset controller responsive to the supply flow rate, for establishing the set point thereof, and to the return flow rate, as a feedback signal thereto, for controlling the output of the return blower.

Method for determining the clogging level of air filters

Selon le procédé d'estimation de l'évolution d'un niveau de colmatage de filtres à air installés dans divers locaux et reliés à une installation d'au moins une conduite d'échange d'air, activée par un ventilateur entraîné par un moteur, a) à un instant initial, on détermine et mémorise un jeu initial de valeurs de paramètres associés de fonctionnement de l'installation sur une courbe de fonctionnement initiale (C20), b) à un instant courant, on détermine des valeurs courantes des paramètres sur une courbe de réponse actuelle (C20A), c) on compare les valeurs courantes au jeu initial pour déterminer une direction de dérive du point de fonctionnement courant par rapport à la courbe de réponse initiale (C20), et d) on détermine un sens d'évolution du niveau de colmatage d'après la direction de la dérive.

A system for controlling automatically the setting of a damper in a ventilation duct

Process and installation of output control of air in a pipe network

L'installation comprend: un ventilateur (10) muni d'un moteur électrique (16) alimenté à fréquence variable, également, un convertisseur à fréquence de sortie réglable et des moyens (12, 22) de mesure de la pression totale fournie par le ventilateur et du débit, et un processeur (20), une mémoire (26) prévue pour mémoriser sous forme numérique au moins une courbe caractéristique pression totale-débit, et éventuellement une courbe caractéristique puissance-débit du ventilateur, à au moins une vitesse prédéterminée; des moyens (30) de visualisation desdites courbes; et des moyens de saisie de données, permettant d'affecter une valeur de consigne (Qc ) au débit à faire passer dans le réseau, l'unité centrale de calcul (14) étant prévue pour calculer la résistance (R) du réseau et le débit (Q) qui la parcourt à un instant déterminé, à partir des signaux fournis par les moyens de mesure, et étant prévue pour calculer, à partir des résultats du calcul précédent et de la valeur de consigne du ...

DEVICE TO CONTROL THE ENVIRONMENTAL PRESSURE IN A PART

DISPOSITIF D'ASSERVISSEMENT AUTOMATIQUE DES CONDITIONS DE FONCTIONNEMENT D'UN APPAREIL DE VENTILATION DANS UNE INSTALLATION DE VENTILATION EN FONCTION DE LA DEMANDE DES USAGERS

LA PRESENTE INVENTION CONCERNE UN DISPOSITIF D'ASSERVISSEMENT AUTOMATIQUE DES CONDITIONS DE FONCTIONNEMENT D'UN APPAREIL DE VENTILATION D'UN ENSEMBLE DE LOCAUX, EN FONCTION DU DEBIT DE VENTILATION REQUIS DE CELUI-CI. SELON L'INVENTION, LE DISPOSITIF COMPREND UN MOYEN DE DETECTION 209 DES VARIATIONS DU DEBIT DE VENTILATION DUDIT ENSEMBLE DE LOCAUX, EVENTUELLEMENT DES MOYENS 231, 233, 236 D'APPLICATION D'UN COUPLE DE RAPPEL SUR LEDIT MOYEN DE DETECTION 209, DES MOYENS DE COMMANDE 214 ASSERVIS AUDIT MOYEN DE DETECTION POUR FAIRE VARIER LA PERTE DE CHARGE DANS LE CONDUIT DE REFOULEMENT ETOU LE CONDUIT D'ASPIRATION DUDIT VENTILATEUR 202, ET DES MOYENS D'ASSERVISSEMENT DESDITS MOYENS DE COMMANDE AUDIT MOYEN DE DETECTION COMPRENANT AU MOINS UNE LIAISON MECANIQUE ARTICULEE 238, 239. L'INVENTION S'APPLIQUE A LA VENTILATION DE LOCAUX.

MODULATEUR DE PRESSION EN CONDUIT

La présente invention concerne un modulateur de pression en conduit. Modulateur caractérisé en ce qu'il est essentiellement constitué par un tronçon de conduit 1 inséré dans le réseau, indépendamment du caisson de ventilation, et présentant un diamètre supérieur à celui des conduits du réseau, par un volet 2 à axe horizontal très excentré 3 monté dans le conduit 1, et par un levier 4 d'actionnement du volet 2 muni d'une masselotte 5 réglable en position, de sorte que la dépression varie en sens inverse du débit.

SOUPAPE DE SECURITE A PLEINE OUVERTURE POUR UNE ENCEINTE EN DEPRESSION

La soupape de sécurité pour une enceinte en dépression comprend un corps tubulaire constitué d'une branche principale 39 et d'une branche secondaire 43 raccordée à ladite branche principale 39, et débouchant dans celle-ci par un orifice latéral 47, un piston 49 coulissant à l'intérieur de la branche principale 39, pour dégager l'orifice latéral 47, une butée 45 limitant le déplacement vers le haut du piston 49 dans sa position de fermeture complète de l'orifice latéral 47. La partie inférieure de la branche principale 39 est fermée par un fond 41 présentant un orifice central 57 de mise en communication avec une pression de référence. Un canal capillaire 55 met en communication une zone de la branche principale 39 située à proximité de l'orifice latéral 47 et du côté du fond 41 avec une zone située à proximité du fond 41 de cette même branche. Le piston 49 comporte un moyen pour obturer l'orifice central 57 du fond 41.

HVAC CONTROL SYSTEM OF HOUSEHOLD CENTRAL AIR CONDITIONER

An HVAC control system of a household central air conditioner comprises an HVAC system controller, a centrifugal blower motor, a compressor motor, and an axial fan motor. The HVAC system controller comprises an HVAC microprocessor, a sensor, a motor control interface unit, and a power supply portion. The power supply portion supplies power for circuits of various parts. The sensor sends a detection signal to the HVAC microprocessor through a signal processing circuit. At least one of the centrifugal blower motor, the compressor motor and the axial fan motor is a permanent magnet synchronous motor without a motor controller. The motor control interface unit comprises an inverter unit and a rotor position detection unit. The HVAC microprocessor drives the permanent magnet synchronous motor without the motor controller through the inverter unit. The rotor position detection unit sends a rotor position signal of the permanent magnet synchronous motor without the motor controller to the HVAC ...

CONSTANT AIRFLOW CONTROL OF A VENTILATION SYSTEM

A ventilation system for providing a substantially constant airflow is disclosed. In one embodiment, a ventilation system includes: a duct; a fan (620) configured to generate an airflow through the duct; a motor (610) configured to drive the fan (620); an electric current detector (670) configured to detect an electric current provided to the motor (610) and to generate a current feedback signal; a motor speed detector (680) configured to detect a rotational speed of the motor (610) and to generate a speed feedback signal; and a controller (660) configured to determine in which speed range among a plurality of speed ranges the speed of the motor (610) is, based at least partly on the speed feedback signal. The controller (660) is further configured to change the electric current by a compensation amount pre-assigned to the determined speed range so as to reach a target value.

VENTILATION CONTROL DEVICE, VENTILATION SYSTEM, AND PROGRAM

A ventilation control device is a device for setting a ventilation path in an object space of wind flowing in/out through a plurality of openings between the object space and the outside of the building. The plurality of openings is disposed in a building. An air conditioner performs air-conditioning in the building. The ventilation control device includes: a ventilation-path setting unit; and an output unit. The ventilation-path setting unit sets the ventilation path so that a ventilation path in the object space, in a state in which the air conditioner operates, differs from a path of wind sent from the air conditioner. The output unit outputs path information indicating the ventilation path set by the ventilation-path setting unit. 1. A ventilation control device configured to set a ventilation path in an object space of wind that flows in and out through a plurality of openings between the object space and an outside of a building , an air conditioner performing air-conditioning in the object space inside the building , the plurality of openings being disposed in the building , the ventilation control device comprising:a ventilation-path setting unit configured to set the ventilation path so that the ventilation path in the object space, in a state where the air conditioner is operating, is different from a path of wind sent from the air conditioner; andan output unit configured to output path information indicating the ventilation path set by the ventilation-path setting unit.2. The ventilation control device according to claim 1 , further comprising an air-conditioning controller configured to control a plurality of opening devices according to the path information outputted from the output unit claim 1 , the plurality of opening devices respectively corresponding to the plurality of openings claim 1 , each of the plurality of opening devices being configured to control an opening state of a corresponding opening.3. The ventilation control device according to ...

CONTROL OF THE ATMOSPHERE IN AN ENCLOSURE

Air-conditioning apparatus

The purpose of the present invention is to provide an air conditioning device configured so that the heat transfer performance of an indoor heat exchanger during cooling operation is higher than that of conventional air conditioning devices. An air conditioning device (100) is provided with: an internal heat exchanger (20) for exchanging heat between a refrigerant flowing through refrigerant piping between an outdoor heat exchanger (3) and an expansion device (4), and a refrigerant flowing through refrigerant piping between the expansion device (4) and an indoor heat exchanger (5); a pressure detection device (31); a first temperature detection device (32) for detecting the temperature of a refrigerant flowing into the expansion device (4) during cooling operation; and a control unit (51) configured so that, during cooling operation, the control unit (51) controls the degree of opening of the expansion device (4) on the basis of the results of detection by the pressure detection device ...

DEVICE AND PROCESS OF REGULATION OF the INTERNAL PRESSURE Of a CLOSED SPACE VENTILATE SUBJECTED HAS VARIATIONS OF External pressure

AIR CONDITIONING SYSTEM

The present invention relates to an air conditioning system. The air conditioning system comprises: an air conditioning unit controlling outdoor air supplied from the outside, exhaust air discharged to the outside, and return air resupplied after circulating indoors, supplying cold/hot supply air to the inside by controlling mixed air where the return air and the outdoor air are mixed or the outdoor air in a preset temperature; at least an outer unit supplying a heat source for heat exchange to the air conditioning unit; a controller receiving operational status data of the air conditioning unit, and controlling the operation of the air conditioning unit by being communicated with the outer unit; and an interface unit outputting a control menu on the air conditioning unit, transmitting data input through the control menu to the controller, and outputting a monitoring screen about the operational status of the air conditioning unit and the outer unit. The air conditioning system controls ...

MONITORING DEVICE AND MONITORING METHOD

A monitoring device allows a user to easily guess whether or not change control can be operated within a temporary control range. The monitoring device (20) comprises: an information obtaining unit (21) obtaining the room temperature and a VAV air volume from a VAV air conditioning system of an object; a room temperature display processing unit (23) displaying the room temperature obtained from the VAV air conditioning system of the object as a graph; a temporary control range calculation unit (25) calculating the length of the bar graph indicating the temporary control range from the VAV air volume; and a temporary range display processing unit (26) enabling the bar graph having the length calculated by the temporary control range calculation unit (25) to be overlapped with the room temperature to be displayed. COPYRIGHT KIPO 2016 (21) Information obtaining unit (22) Memory unit (23) Room temperature display processing unit (24) Conversion rate calculation unit (25) Temporary control range ...

AIR CONDITIONER

Disclosed is an air conditioner, which comprises: a housing having an air discharge unit; an air blowing fan provided in the housing, and discharging air to the air discharge unit; an air amount display unit provided to be exposed to the outside of the housing, and having a lens member dispersing light and a light source irradiating light to the lens member; and a control unit connected to the air amount display unit, and changing an irradiation angle of light irradiated to the lens member by the light source in accordance with an operating state of the air blowing fan. According to the air conditioner, an operating state and an air amount of a device can be easily checked in a distant place with the naked eye. COPYRIGHT KIPO 2017 ...

METHOD FOR CONTROLLING PRESSURE DELIVERED BY THE VARIABLE SPEED FAN OF A VENTILATION DEVICE

The inventive method consists in defining a device loss of load and in calculating a minimum required pressure corresponding to a minimum flow rate and a maximum required pressure corresponding to a maximum flow rate, in defining a flow rate/pressure curve between two predetermined points corresponding to the minimum pressure and flow rate and to the maximum pressure and flow rate, in measuring the air flow rate passing through a fan, in calculating the required pressure using the flow rate/pressure curve and in subsequently controlling the fan speed of rotation in such a way that said required pressure value is delivered.

Method and device for feeding the various rooms of premises with ventilation air

This method consists in supplying the various rooms of the premises with air under stable low pressure using a relatively high-pressure fan, in feeding the fan, on the one hand, using fresh air, and, on the other hand, using recycled air, that is to say air that has been displaced by the fan and not let into the premises, and in regulating the respective proportions of fresh air and recycled air so that the proportion of fresh air increases and the proportion of recycled air decreases when the ventilation requirements increase, and so that the proportion of fresh air decreases and the proportion of recycled air increases when the ventilation requirements decrease, so that the delivery rate of the fan is kept almost constant. Application to systems for controlled mechanical ventilation of premises.

Process and feeding attachment in air of ventilation of the various parts of a room

Ce procédé consiste à fournir aux différentes pièces du local de l'air sous basse pression stable, à l'aide d'un ventilateur (9) à relativement haute pression, à alimenter le ventilateur (9), d'une part, à l'aide d'air neuf (3, 4) et, d'autre part, à l'aide d'air recyclé (12, 13), c'est-à-dire ayant été entraîné par le ventilateur (9) et non admis dans le local, et à régler les proportions respectives d'air neuf et d'air recyclé, de telle sorte que la proportion d'air neuf augmente et la proportion d'air recyclé diminue, lorsque les besoins en ventilation augmentent, et que la proportion d'air neuf diminue et la proportion d'air recyclé augmente, lorsque les besoins en ventilation diminuent, de façon que le débit du ventilateur soit maintenu presque constant. Application aux installations de ventilation mécanique contrôlée de locaux.

CONTROLLER OF AIR CONDITIONER COMMUNICATION AND ELECTRONIC EXPANSION VALVE

Determining malfunction in an inspection of an inverter air conditioner and a heating communication state was only possible by operating the air conditioner. However, according to the present invention, using a personal measuring instrument allows to have an immediate inspection on the communication state of an indoor heat exchanger and an outdoor heat exchanger in an objective situation without operating the air conditioner. In addition, an individual inspection on a communication (connection) of an indoor heat exchanger and an outdoor heat exchanger is possible. A device to check a sedentary state of an existing EEV is not available, and a method of opening and closing by force was an available option which is a primitive method using a magnet to attach to the EEV to rotate, but the controller of an air conditioner communication and an EEV allows to check the sedentary state using a personal measuring instrument and enables to open and close by force. COPYRIGHT KIPO 2017 (AA) Communication ...

PRESSURE RELIEF DOOR FOR AIR DUCT WORK

A pressure relief door system (10) for use in a duct (D) for relieving positive or negative pressure within the duct includes a frame (12) to be mounted in the duct; a gasket (14) in the frame; a hinged door (16) mounted on the frame and sealing against the gasket; and an adjustable pressure relief (18) mechanism normally holding the hinged door against the gasket and permitting the hinged door to open in response to a positive or negative pressure change. The frame and door (16) can be mounted such that the door opens either outwardly from the duct (D) in response to excess positive pressure or inwardly into the duct in response to excess negative pressure. The adjustable pressure relief (18) mechanism may be magnetic.

VARIABLE AIR VOLUME MODELING FOR AN HVAC SYSTEM

Using information available from the controller or controllers of air-handling units, a remote server uses a heuristic model to determine settings for the air-handling units. Rather than just using rules for each air-handling unit, a model-based solution determines the settings. The model is used to optimize operation of the air distribution. In additional or alternative embodiments, measurements are gathered and used to derive analytics. The measurements may include data not otherwise used for rule-based control of the air handling unit. The analytics are used to predict needs, as inputs to the modeling, identify problems, and/or identify opportunities.

Biosafety Containment System

A biosafety containment chamber comprises a rigid frame that supports an enclosure made of a flexible, substantially transparent material, which includes at least top and side surfaces joined to provide a fully enclosed environment. A plurality of glove ports are disposed on the enclosure, each including a flexible glove that enables manipulation of items within the enclosure. The biosafety containment chamber further comprises an air supply system to draw air into the fully enclosed environment through an intake HEPA filter, and an air exhaust system to draw air from the fully enclosed environment into an external environment through an exhaust HEPA filter. The air supply system and the air exhaust system are configurable to maintain a negative pressure in the fully enclosed environment. 1. A biosafety containment chamber , comprising:a rigid frame to provide an overall shape for the biosafety containment chamber;an enclosure supported by the rigid frame and including top and side surfaces joined to provide a fully enclosed environment, the enclosure comprising a flexible, substantially transparent material;a plurality of glove ports disposed on the enclosure, each glove port comprising a flexible glove that enables manipulation of items within the enclosure;an air supply system configured to draw air into the fully enclosed environment through an intake high-efficiency particulate air (HEPA) filter; andan air exhaust system configured to draw air from the fully enclosed environment into an external environment through an exhaust HEPA filter, the air supply system and the air exhaust system being configurable to maintain a negative pressure in the fully enclosed environment.2. The biosafety containment chamber of claim 1 , further comprising a sealable access port sized to permit introduction of a specimen into the biosafety containment chamber.3. The biosafety containment chamber of claim 2 , wherein the access port provides access to the biosafety containment ...

Regulation of atmospheric conditions within a confined space

An improved system for maintaining atmospheric conditions within prescribed parameters throughout the interior of a building. The building interior is essentially an enclosed system and sufficient outside air is admitted through air handling units to continuously maintain the interior of the building under a slight positive pressure throughout. Controllable vents are provided at strategic locations around the perimeter of the building, and sensing units are located throughout the building to continuously monitor atmospheric conditions such as temperature, humidity, and the level of particulates and pollutants. The sensing units or monitoring stations are periodically polled by a central computer, with signals from each station providing an indication of atmospheric conditions at that station. The signals representing existing atmospheric conditions are compared with stored data indicative of prescribed parameters for desired atmospheric conditions at the stations. Signals are generated ...

METHOD AND APPARATUS FOR THE CONTROL OF AIR FLOWS AND PRESSURES IN AIR-CONDITIONING

The invention relates to a method and apparatus for controlling the fresh-air, input-air, exhaust-air, waste-air and return-air flows, as well as the air pressure in the input-air duct and the air pressure in the exhaust-air duct, in an air-conditioning system which comprises at least input-air and waste-air flow meters (6, 20), input-air and exhaust-air pressure meters (12, 19), an input-air fan (5) with its air-flow control (13), a waste-air or exhaust-air fan (18) with its air-flow control (14), a fresh-air flow meter (15), a heat recovery exchanger (4), closing and control mechanisms for exhaust air and return air, coupled together as an outlet-air mechanism (10), and closing and control mechanisms for fresh air and fresh-air bypass, coupled together as an intake-air mechanism (3). The controls (13, 14) work together, and they have been fitted to act on the fans (5, 18) and mechanisms (3, 10) so that a change in one of the quantities measured will cause the adjustment of some air flow ...

PROCESS OF REGULATION Of an INSTALLATION OF VENTILATION

DISPOSITIF D'ASSERVISSEMENT AUTOMATIQUE DES CONDITIONS DE FONCTIONNEMENT D'UN APPAREIL DE VENTILATION DANS UNE INSTALLATION DE VENTILATION, EN FONCTION DE LA DEMANDE DES USAGERS

LA PRESENTE ADDITION CONCERNE UN PERFECTIONNEMENT A UN DISPOSITIF D'ASSERVISSEMENT AUTOMATIQUE DES CONDITIONS DE FONCTIONNEMENT D'UN APPAREIL DE VENTILATION DANS UNE INSTALLATION DE VENTILATION. CE DISPOSITIF COMPREND UN MOYEN DE DETECTION DES VARIATIONS DE DEBIT DANS LE CONDUIT DE REFOULEMENT 107 D'UN VENTILATEUR 102 ET DES MOYENS DE COMMANDE CONSTITUES PAR LES VOLETS 114 ET L'ORGANE DE COMMANDE 115 POUR CREER UNE PERTE DE CHARGE DANS LE CONDUIT 107. LE MOYEN DE DETECTION COMPREND DES MOYENS D'APPLICATION D'UN COUPLE DE RAPPEL SUR LE VOLET DE DETECTION 109 OU L'AXE DE PIVOTEMENT 110, POUR MAINTENIR LE VOLET EN EQUILIBRE POUR CHAQUE DEBIT DE VENTILATION. CES MOYENS COMPRENNENT DEUX ORGANES ELASTIQUES 131, 133 ET UN ELEMENT 136 FORMANT CAME. LA PRESENTE ADDITION S'APPLIQUE NOTAMMENT DANS LE DOMAINE DE LA VENTILATION MECANIQUE DE LOCAUX.

HEAT-INSULATION PANEL FOR BREEDING ANIMALS, FILLED WITH HEAT INSULATING MATERIALS

The present invention relates to a heat-insulation panel which is used for breeding animals and is filled with heat insulating materials. More specifically, the heat-insulation panel is intended to keep warmth by body heat. To this end, urethane heat-insulating materials are filled between fiber reinforce plastic (F, R, P) plates, thereby keeping warmth and maintaining strength. In addition, the panel is produced by filling a middle side with urethane heat-insulating materials and then coating both sides with F, R, P materials thereafter. COPYRIGHT KIPO 2016 ...

CLEAN ROOM CONTROL SYSTEM AND METHOD

In a system and method of controlling particulate count in a clean room having a number of compartments/zones in series, in response to a first level of energy consumption by speed adjustable fans supplying a first volume of air per unit of time to the clean room, differential air pressures are established in the clean room compartment/zone-by-compartment/zone in series from a first compartment/zone which has a requirement for the highest air pressure to a last compartment/zone which has a requirement for the lowest air pressure. In response to a second level of energy consumption by the speed adjustable fans supplying a second volume of air per unit of time to the clean room, the same differential air pressures are substantially maintained in the clean room.

AIR-CONDITIONING DEVICE

The invention relates to an air-conditioning device comprising a control unit and a sensor device, which can be used to detect the presence of an analyte in the room air, on the basis of which the quality of the room air can be concluded. The sensor device is equipped with a light source which emits light on a light path into the room and a detector sensitive to the light. The control unit controls the air-conditioning device depending on the output signal of the detector. If the analyte is located on the light path, the light is scattered and/or absorbed such that the detector detects a lower quantity of light, on the basis of which the presence of the analyte can be concluded. The light source can be pivoted such that differing light paths through the room can be set. To this end, for each light path the output signal of the detector is determined such that it can be ascertained where in the room the analyte is located, and the air-conditioning device can deliberately locally influence ...

Method and system for tempering components

In einem Verfahren zum Temperieren eines Bauteils (4) wird ein Temperiersystem (1) zum Heizen oder Kühlen verwendet. Das Temperiersystem umfasst eine Temperiervorrichtung (3), eine Temperieranordnung (5), eine Vorlaufleitung (6) und eine Rücklaufleitung (7), die alle miteinander verbunden sind. Das Temperiersystem umfasst zudem eine Steuerung (8) mit einem Ventil (9), einem Stellglied (10), einem Vorlauftemperaturfühler (11) und einem Rücklauftemperaturfühler (12). Mit dem Vorlauftemperaturfühler (11) und dem Rücklauftemperaturfühler (12) sowie einem Regler (13) der Steuerung wird eine Temperaturdifferenz zwischen der Vorlauftemperatur und der Rücklauftemperatur eines im Temperiersystem (1) zirkulierenden Temperierfluids (2) erfasst. Ausgehend von dieser mittleren Temperaturdifferenz veranlasst der Regler (13) das Stellglied (10) derart zum Einstellen eines Öffnungsgrades des Ventils (9), dass die mittlere Temperaturdifferenz zwischen der Vorlauftemperatur und der Rücklauftemperatur des ...

METHOD FOR CONTROLLING PRESSURE DELIVERED BY THE VARIABLE SPEED FAN OF A VENTILATION DEVICE

PRE-PRESSURE DEVICE FOR LARGE-SIZED TOTALLY MOUNTED PORTABLE TYPE ELECTRIC DEVICE

PURPOSE: To eliminate the need for reinforcement against inner pressure of a roof and a wall, and to prevent the obstruction of a door closing by inner pressure by forwarding air only in case of the opening of a door by a detecting switch for the opening and closing of the door and keeping inner pressure. CONSTITUTION: An outside-air communicating damper 9 is set up on its midway of an air duct 4, closed when the door 7 is opened by the detecting switch for opening and closing not shown of the door 7, and opened when the door is closed by the switch. Consequently, the blast of a blower 2 is forwarded into a device 1 to pre-pressure the device when the door is opened. When the door 7 is closed, on the other hand, excessive air pressure is discharged to the outside through the damper 9, and pre-pressure is reduced. According to the cnstitution, excessive pre-pressure is unnecessitated, the wall and the roof need not be reinforced, and the difficulty of the closing of the door can be prevented ...

Air-conditioning device

The invention relates to an air-conditioning device comprising a control unit and a sensor device, which can be used to detect the presence of an analyte in the room air, on the basis of which the quality of the room air can be concluded. The sensor device is equipped with a light source which emits light on a light path into the room and a detector sensitive to the light. The control unit controls the air-conditioning device depending on the output signal of the detector. If the analyte is located on the light path, the light is scattered and/or absorbed such that the detector detects a lower quantity of light, on the basis of which the presence of the analyte can be concluded. The light source can be pivoted such that differing light paths through the room can be set. To this end, for each light path the output signal of the detector is determined such that it can be ascertained where in the room the analyte is located, and the air-conditioning device can deliberately locally influence ...

DISPOSITIF D'ASSERVISSEMENT AUTOMATIQUE DES CONDITIONS DE FONCTIONNEMENT D'UN APPAREIL DE VENTILATION DANS UNE INSTALLATION DE VENTILATION, EN FONCTION DE LA DEMANDE DES USAGERS, ET UNE INSTALLATION DE VENTILATION COMPRENANT CE DISPOSITIF

LA PRESENTE INVENTION CONCERNE UN DISPOSITIF D'ASSERVISSEMENT AUTOMATIQUE DES CONDITIONS DE FONCTIONNEMENT D'UN APPAREIL DE VENTILATION D'UNE INSTALLATION DE VENTILATION D'UN ENSEMBLE DE LOCAUX. CE DISPOSITIF 8 COMPREND UN VOLET DE DETECTION 9 DES VARIATIONS DE DEBIT DE VENTILATION DE L'ENSEMBLE DES LOCAUX, UN POTENTIOMETRE 13 RELIE AUDIT VOLET 9, UN VOLET DE REGULATION 14 DONT LE PIVOTEMENT EST COMMANDE PAR UN MOTEUR 15 ALIMENTE PAR LE SIGNAL EMIS PAR LE POTENTIOMETRE 13. CE DISPOSITIF REND POSSIBLE DES VARIATIONS IMPORTANTES DE DEBITS DE VENTILATION DE CHACUN DES LOCAUX DESSERVIS PAR LE MEME VENTILATEUR, SANS PERTURBATION SENSIBLE DES DEBITS DE VENTILATION DES AUTRES LOCAUX. LA PRESENTE INVENTION S'APPLIQUE NOTAMMENT DANS LE DOMAINE DE LA VENTILATION D'ENSEMBLE DE LOCAUX.

AIR-CONDITIONING INDOOR UNIT

VENTILATION CLEANER AND METHOD FOR CONTROLLING SAME

A ventilation cleaner and a method for controlling the same are disclosed. The ventilation cleaner may comprise: a first cleaning module for purifying indoor air; a second cleaning module for purifying outdoor air; an air mixing unit for discharging indoor air, which has been purified by the first cleaning module, and outdoor air, which has been purified by the second cleaning module, respectively or mixedly through a discharge opening; a sensor unit for measuring the state of indoor and outdoor air; and a control unit for controlling the operation mode by adjusting channels of the first and second cleaning modules or by adjusting the flow rate of air introduced through the first and second cleaning modules, on the basis of the state of indoor and outdoor air measured by the sensor unit. COPYRIGHT KIPO 2016 (100) Ventilator cleaner (110) First cleaning module (111) First valve (112) First flow path (113) First filter (120) Second cleaning module (121) Second valve (122) Second flow path ...

METHOD AND APPARATUS FOR DETERMINING THE TOTAL FLOW RATE IN A VENTILATION INSTALLATION

A method and apparatus for determining the total flow rate of air flowing through a ventilation installation with a free suction fan (15) is described. The flow rate or a corresponding pressure is determined by measurement of the partial flow rate or a corresponding pressure at at least one measurement point in the vicinity of the inlet opening of the fan. A measurement tube (20) open at both ends is suitably used, and oriented with its longitudinal axis in the inflow direction, flow sensing means being arranged inside the measurement tube. In this way there is obtained good measurement accuracy within a large flow range.

DISPOSITIF DE VENTILATION D'UNE ENCEINTE CONFINEE

LE DISPOSITIF COMPORTE, DE MANIERE CONNUE, UN DISPOSITIF D'ENTREE D'AIR6, UN DISPOSITIF DE SORTIE D'AIR16 ET UN DISPOSITIF DE SECURITE PERMETTANT D'ETABLIR UN DEBIT D'AIR CONVENABLE DANS L'ENCEINTE2 EN CAS DE VARIATION ACCIDENTELLE DE LA DEPRESSION A L'INTERIEUR DE CELLE-CI; SELON L'INVENTION, LE DISPOSITIF DE SECURITE EST INCORPORE AU DISPOSITIF D'ENTREE D'AIR6 ET ASSURE LUI-MEME LA REGULATION DU DEBIT D'AIR DANS L'ENCEINTE2, CE QUI AUGMENTE L'ESPACE DISPONIBLE A L'INTERIEUR DE L'ENCEINTE2. APPLICATION AU CONTROLE DE LA DEPRESSION A L'INTERIEUR D'UNE BOITE A GANTS.

PROCEDE ET DISPOSITIF DE TRAITEMENT THERMIQUE PAR REDUCTION DE LA PRESSION D'AIR REGNANT DANS UNE CHAMBRE

L'INVENTION SE RAPPORTE A UN PROCEDE DE TRAITEMENT THERMIQUE ET AU DISPOSITIF POUR SA MISE EN OEUVRE PAR REDUCTION DE LA PRESSION D'AIR A L'INTERIEUR D'UNE CHAMBRE. L'AIR EXTERIEUR INTRODUIT DANS LA CHAMBRE 1 DEPUIS L'EXTERIEUR EST PLACE EN POSITION D'ECHANGE DE CHALEUR PAR RAPPORT A L'AIR CHAUD DECHARGE DE LA CHAMBRE 1, A L'AIDE DE MOYENS D'ECHANGE DE CHALEUR A ET EST TRANSFORME EN AIR CHAUD. APPLICATION AU TRAITEMENT THERMIQUE, NOTAMMENT AU SECHAGE, DE PRODUITS CONTENUS A L'INTERIEUR DE LA CHAMBRE AVEC UN MINIMUM DE PERTE DE CHALEUR VERS L'EXTERIEUR.

DISPOSITIF DE REGLAGE DE DEBIT D'AIR, NOTAMMENT POUR CABINES DE PEINTURE

Dispositif assurant un réglage prédéterminé de la vitesse de l'air admis dans une enceinte comportant au moins une introduction d'air chaud ou froid pulsé par un ventilateur, ce dispositif étant caractérisé en ce qu'il comprend des moyens assurant le contrôle de la vitesse de l'air délivré dans l'enceinte, des moyens pour faire varier la vitesse de rotation du ventilateur, au moins un extracteur assurant l'évacuation de l'air de l'enceinte, et des moyens contrôlant la pression régnant dans l'enceinte et réglant la vitesse de l'extracteur afin que l'extraction de l'air de ladite enceinte soit automatiquement réglée en fonction du volume d'air déterminé introduit dans l'enceinte.

Air pressure control unit for room in building lowers pressure for health benefits and includes fan with butterfly valve activated by programmed control unit depending on barometer readings

Dispositif destiné à réguler la pression atmosphérique d'un lieu. L'invention concerne un dispositif permettant de réguler au mieux de la santé de l'utilisateur la pression atmosphérique d'un lieu : chambre, bureau, voiture, etc. Il est constitué principalement d'un ventilateur (2) agissant à travers une vanne papillon (1) et actionné par un système de commande programmé (4) en fonction des indications d'un baromètre (3). Le dispositif selon l'invention est particulièrement destiné à la régulation des espaces de repos.

Air exhaust fan pressure regulating method for ventilation system, involves defining pressure-flow-rate curve between two points established previously corresponding to minimum pressure and maximum pressure

Ce procédé consiste à : - définir les pertes de charges de l'installation et en déduire la pression minimale requise correspondant au débit minimum, et la pression maximale requise correspondant au débit maximum, - définir une courbe débit-pression entre les deux points établis précédemment correspondant à la pression minimale et au débit minimum d'une part et à la pression maximale et au débit maximum d'autre part, - mesurer le débit d'air passant dans le ventilateur, et calculer à partir de la courbe débit-pression la pression requise, puis - commander la vitesse de rotation du ventilateur pour que celui-ci fournisse cette valeur de pression.

공기조화기 및 그 제어 방법

... 공기조화기 및 그 제어 방법에 관한 것으로, 보다 상세하게는 별도로 마련된 토출홀을 통하여 낮은 풍속으로 냉난방을 실시함에 따라 쾌적한 실내 온도 또는 실내 습도를 유지하고, 공기조화기의 하부에 마련된 토출홀을 통해 저속 냉방을 수행함으로써, 사용자의 취침시간 등에 있어 실내의 하부 영역에 대해 쾌적한 냉방효과를 구현할 수 있는 기술이다. 또한, 공기조화기의 송풍팬이 정지된 경우, 시간 및 온도에 기초하여 송풍팬을 동작시킴으로써 공기조화기에 발생할 수 있는 결로를 방지할 수 있고, 공기조화기의 제습기능에 있어서, 수반되는 냉방효과를 저감시킨 제습기능을 구현할 수 있는 공기조화기 및 그 제어 방법에 관한 기술이다. 일 실시예에 따른 공기조화기는, 적어도 하나의 개구가 형성된 전면패널과 전면패널의 후방에 결합되는 후면패널을 포함하는 하우징, 적어도 하나의 개구를 통해 전면패널의 전방으로 노출되어 열교환된 공기를 하우징의 외부로 토출하는 적어도 하나의 토출부, 전면패널에 마련되어 열교환된 공기를 토출하는 토출홀, 적어도 하나의 토출부에 마련되는 적어도 하나의 송풍팬, 및 적어도 하나의 토출부가 폐쇄되면, 미리 정해진 시간 및 전면패널의 온도 중 적어도 하나에 기초하여 토출홀을 통해 열교환된 공기가 토출되도록 적어도 하나의 송풍팬을 회전시키는 제어부를 포함하는 것을 특징으로 한다.

ELECTRONICALLY-CONTROLLED REGISTER VENT FOR ZONE HEATING AND COOLING

An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.

ENVIRONMENTAL CONTROL SYSTEM

An environmental control system is provided and includes equipment to generate an environmental control effect, a damper associated with a zone to control a portion of the environmental control effect permitted to affect the zone by assuming one of various damper positions and a capacity controller operably coupled to the equipment and the damper to control operation of the equipment and to adjust the damper to assume the one of the various damper positions based on a demand of the zone and a capacity of the equipment.

METHOD AND DEVICE FOR CONTROLLING AIR SUPPLY IN A NETWORK OF PASSAGES

공기조화기의 제어방법

... 본 발명은 냉매를 압축하는 압축기 및 상기 압축기를 제어하는 제어부를 포함하고, 상기 제어부는, 공기조화기 전체를 제어하는 메인제어부; 상기 압축기가 가동될 때, 상기 압축기를 제어하는 시동제어부; 상기 시동제어부의 제어가 종료된 후 실내 목표온도에 따라 상기 압축기를 제어하는 정상제어부; 상기 시동제어부에서 상기 정상제어부로 압축기의 제어권이 이전될 때, 실내 부하에 따라 상기 압축기의 작동주파수를 낮추는 보상값을 계산하는 범프리스제어부;를 포함하는 공기조화기의 제어방법에 있어서, 상기 범프리스제어부는 상기 보상값에 따라 상기 압축기의 작동주파수를 스텝다운시키는 공기조화기의 제어방법을 제공한다. 본 발명은 압축기의 시동제어에서 정상제어로 전환될 때, 실내 부하에 따라 압축기의 작동 주파수를 낮출 수 있는 보상값을 적용하기 때문에, 압축기 사용에 따른 에너지를 절감하고, 실내온도의 오실레이션 발생을 방지하는 장점이 있다.

METHOD AND DEVICE FOR CONTROLLING A VENTILATED AMOUNT FOR CLOSED-TYPE DUCT

The present invention relates to a ventilated amount control method to restrict emission of harmful gases such as foul odors, toxic substances or the like from a closed-type pipe. The ventilated amount control method is based on (i) a closed-type pipeline model for preventing harmful gas, which is divided into one main pipe and a plurality of branch pipes in a planned area, allows negative pressure to be formed inside due to a separately provided forced exhaust means, (ii) determines a reference flow rate by comparing the reverse speed value of a natural positive pressure flow rate of harmful gas in accordance with the temperature difference, a concentration difference, a pressure head, a stack effect or the like in a state without forced exhausting with respect to the closed type-pipe, (iii) uniformly allocates the reference flow rate as a flow rate in the single main pipe and the plurality of branch pipes included in the closed type-pipe, and then determines a sum, which is obtained by ...

CONSTANT AIRFLOW CONTROL OF A VENTILATION SYSTEM

A ventilation system for providing a substantially constant airflow is disclosed. In one embodiment, a ventilation system includes: a duct; a fan (620) configured to generate an airflow through the duct; a motor (610) configured to drive the fan (620); an electric current detector (670) configured to detect an electric current provided to the motor (610) and to generate a current feedback signal; a motor speed detector (680) configured to detect a rotational speed of the motor (610) and to generate a speed feedback signal; and a controller (660) configured to determine in which speed range among a plurality of speed ranges the speed of the motor (610) is, based at least partly on the speed feedback signal. The controller (660) is further configured to change the electric current by a compensation amount pre-assigned to the determined speed range so as to reach a target value.

CLOSURE DEVICE

The invention relates to a closure device comprising a frame (1) provided with at least one flow passage (2), a closure means (3) mounted displaceable for each flow passage (2), and a counterpart (4a, 4b) for each closure means. The closure means (3) are arranged displaceable in guide grooves (6) formed in the frame in parallel with the flow passage (2) and are suspended between torsion springs (7). Each torsion spring (7) is formed of a wire that is bent to define a coil (8) and to have a first arm (9) and a second arm (10) extending from the coil (8). The first arm (9) of each torsion spring (7) press against the closure means (3) and the second arm (10) of each torsion spring (7) press against the frame (1). Each torsion spring (7) is made of spring steel having a diameter between 1.9 and 1.1 mm.

Ventilator module

Die Erfindung betrifft ein Ventilatormodul für eine Lüftungseinheit. Um ein Ventilatormodul zu schaffen, das gesteigerten Ansprüchen an Montagefreundlichkeit und Betriebssicherheit gerecht wird, wird mit der Erfindung vorgeschlagen ein Ventilatormodul für eine Lüftungseinheit zur Versorgung eines Raumes oder eines Teils hiervon mit Zuluft, insbesondere Frischluft, welches Modul als eigenständig handhabbare Baugruppe ausgebildet ist und aufweist: - eine Ventilatoreinrichtung, - eine Vorrichtung zur Ermittlung des von der Ventilatoreinrichtung transportierten Luftstroms sowie - eine Steuerungseinrichtung, die Sensoren für Temperatur, Strömungsvolumen und relative Luftfeuchte umfasst.

Air-conditioner management apparatus and air conditioning system

An air-conditioner management apparatus 100 controls the operation of a plurality of air conditioners 10 that have a plurality of indoor units 12. The air-conditioner management apparatus 100 includes a control unit 21 that performs air conditioning control in which normal control is switched to energy-saving control when, during the normal control in which the indoor temperature is maintained at a preset temperature, load data indicating the ambient environments of the indoor units 12 satisfy a specific load condition. Even when the load data of some indoor units 12 do not satisfy the load condition, the control unit 21 starts the energy-saving control when it is anticipated, from the history of the previous operating status data of these indoor units 12, that the indoor environment comfort will not be deteriorated by starting the energy-saving control.

DEVICE AND METHOD FOR CONTROLLING AIR CONDITIONER

AIR CONDITIONER AND METHOD FOR CONTROLLING SAME

The present invention relates to an air conditioner and a method for controlling the same wherein, more specifically, a comfortable room temperature or an indoor humidity is maintained by performing air-conditioning at a low wind speed through a discharge hole which is additionally arranged and a comfortable air-conditioning effect can be provided to a lower portion of an indoor space during user′s bedtime as cooling at a low speed is performed through a discharge hole arranged on a lower portion of the air conditioner. In addition, when a blowing fan of the air conditioner is stopped, frost, which may be generated on the air conditioner, can be prevented from forming by operating the blowing fan based on time and temperature. The air conditioner can provide a dehumidification function with a reduced cooling effect accompanying a dehumidification function of an air conditioner. According to an embodiment of the present invention, the air conditioner comprises: a housing comprising a front ...

SYSTEM AND METHOD TO PROTECT COMPRESSOR OF AIR CONDITIONER

The present invention relates to a system and a method to protect a compressor of an air conditioner, and more specifically, relates to a system and a method to protect a compressor of an air conditioner, which are capable of detecting an abnormal situation, where the compressor of the air conditioner frequently repeats operating and stopping to block the power supply to the compressor and to protect the compressor. To this end, in an air conditioner system, comprising: a compressor which compresses/circulates a refrigerant; a condenser which condenses the refrigerant; an expansion valve which expands the refrigerant; and an evaporator which evaporates the refrigerant, the system to protect the compressor of the air conditioner comprises: a signal generation unit which detects information acquired through the pressure of the refrigerant transferred from the condenser; and a control unit which analyzes the information on the refrigerant pressure transferred from the signal generation unit ...

Air-conditioning

An air discharge terminal unit comprising a housing which has an air inlet and an air outlet. Means is provided between the air inlet and air outlet for dividing an air flow through the unit into primary and secondary air streams, each of which moves in a path, further means is provided for reducing the pressure of the secondary air to a value lower than that of the primary air and means is provided for varying the path of the primary air stream to interact selectively with the secondary air stream to control the rate of flow of air through the outlet.

VENTILATING DEVICE FOR SEALED VESSEL

HEAT-RECOVERY VENTILATING DEVICE AND HEAT-RECOVERY VENTILATION CONTROLLING METHOD USING SAME

The present invention relates to a heat-recovery ventilating device and a heat-recovery ventilation controlling method using the same. The heat-recovery ventilating device includes: a first contamination sensor; a second contamination sensor; a third contamination sensor; a bypass module; and a flow rate controlling unit. The heat-recovery ventilating device is capable of selectively controlling an amount of indoor air being bypassed according to a contaminated degree of the indoor air being bypassed to a total heat exchange unit, thereby preventing an intake of polluted air containing carbon dioxide, carbon monoxide, fine dust, and the like to an indoor space. In addition, the heat-recovery ventilating device includes: a first identification window, a second identification window; a first identification mirror; and a second identification mirror, thereby easily sorting a filter of the total heat exchange unit and enabling convenient determination for a timing for replacing the total heat ...

유체 조작 시스템용 도어 조립체

... 본 명세서는 유체 조작 시스템에서 유동하는 유체의 압력에 반응하여 개폐 가능한 도어를 구비한 도어 조립체의 일 실시예를 기술한다. 이러한 실시 예들은 수동의 개입 및/또는 상호 작용, 예를 들면, 기술자 및 유지 보수 인력이 필요 없이 상기 도어를 제 위치로 위치시키고 고정시킬 수 있다. 후술하는 바와 같이, 이들 실시 예는 폐쇄된 위치에서 도어를 위치시키고 잠글 수 있는 부재를 사용한다. 그러나, 이러한 부재들은 도어의 하중을 지지할 필요는 없으며, 따라서, 이러한 요소들은 유체 조작 시스템에 사용에 필요한 자동화 되고 및 신뢰성 있는 작동을 하기 위하여 더 강하고 비용 효율적인 디자인을 제공한다.

AIR CONDITIONER AND CONTROL METHOD THEREOF

The present invention relates to an air conditioner and a control method thereof. According to an embodiment of the present invention, the air conditioner comprises: an outdoor unit having a compressor and an outdoor temperature sensor to sense an outdoor temperature; an indoor unit connected to the outdoor unit and installed in an indoor space; an indoor temperature sensor installed in the indoor unit to sense an indoor temperature; an indoor humidity sensor installed in the indoor unit to sense indoor humidity; and a control unit to determine a target evaporation pressure based on information sensed by the outdoor temperature sensor. The control unit determines whether to change the determined target evaporation pressure based on a difference value between a value sensed by the indoor temperature sensor and a set temperature of the indoor space, and a value sensed by the indoor temperature sensor. COPYRIGHT KIPO 2017 (AA) Start (BB) End (S11) Start to operate an air conditioner/drive ...

AIR PRESSURE STABILISER

An air pressure stabiliser device is adapted to be located in an aperture (6) in a wall, which may be provided by ductwork, extending into and from a room within which the pressure is to be maintained in excess of atmospheric pressure, but which is vented when the pressure rises above a predetermined maximum. The stabilising device comprises two bearing assemblies (8), defining a longitudinal axis (10), and a control member (12) extending between the bearing assemblies (8), being supported thereby for rotation about said axis. Adjustment means (40, 40a, 41, 50, 51) are provided positionally to adjust the control member in a direction extending at right angles to the pivot axis, to adjust the excess pressure to which the control member responds and the threshold opening pressure. These adjustment means are provided to enable the control member to open fully in response to the detection of the desired excess pressure within the room being controlled.

Ventilator module

AIR CONDITIONER

PURPOSE: To prevent the moisture condensation and pulsating sound in the blast by requiring no complex control and making no change in the construction by making larger the rotational speed of a fan when the angle of a flap is changed in the direction in which the angle of the flap gets off the position of maximum blast volume angle and making smaller the rotational speed when the angle of the flap is changed in the direction in which the angle of the flap gets near maximum blast volume angle. CONSTITUTION: An angle variation calculator 2b calculates the direction of the change and the value of the change of the vane angle by receiving signal from an angle control means 2a which controls the angle of the vane provided at the blow-out port. And, a rotational speed controller 2c maintains the rotational speed of the fan at a set rotational speed when the angle of the vane is maximum blast volume angle at which the blast volume blown out from the blow-out port becomes maximum. Here, when the ...

HVAC (heating ventilation and air conditioning) control system of household central air conditioner

The invention relates to an HVAC (heating ventilation and air conditioning) control system of a household central air conditioner, comprising an HVAC system controller, a centrifugal blower motor, a compressor motor, and an axial fan motor, wherein the HVAC system controller comprises an HVAC microprocessor, a sensor, a motor control interface unit and a power supply portion; the power supply portion is used to supply power for circuits of various parts; the sensor transmits a detection signal to the HVAC microprocessor through a signal processing circuit, wherein at least one of the centrifugal blower motor, the compressor motor and the axial fan motor is a permanent magnet synchronous motor without a motor controller; the motor control interface unit comprises an inverter unit and a rotor position detecting unit; the HVAC microprocessor drives the permanent magnet synchronous motor without the motor controller through the inverter unit; the rotor position detecting unit transmits a rotor ...

METHOD AND APPARATUS FOR THE CONTROL OF AIR FLOWS AND PRESSURES IN AIR-CONDITIONING

The invention relates to a method and apparatus for controlling the fresh-air, input-air, exhaust-air, waste-air and return-air flows, as well as the air pressure in the input-air duct and the air pressure in the exhaust-air duct, in an air-conditioning system which comprises at least input-air and waste-air flow meters (6, 20), input-air and exhaust-air pressure meters (12, 19), an input-air fan (5) with its air-flow control (13), a waste-air or exhaust-air fan (18) with its air-flow control (14), a fresh-air flow meter (15), a heat recovery exchanger (4), closing and control mechanisms for exhaust air and return air, coupled together as an outlet-air mechanism (10), and closing and control mechanisms for fresh air and fresh-air bypass, coupled together as an intake-air mechanism (3). The controls (13, 14) work together, and they have been fitted to act on the fans (5, 18) and mechanisms (3, 10) so that a change in one of the quantities measured will cause the adjustment of some air flow ...

METHOD AND APPARATUS FOR DETERMINING THE TOTAL FLOW RATE IN A VENTILATION INSTALLATION

A method and apparatus for determining the total flow rate of air flowing through a ventilation installation with a free suction fan (15) is described. The flow rate or a corresponding pressure is determined by measurement of the partial flow rate or a corresponding pressure at at least one measurement point in the vicinity of the inlet opening of the fan. A measurement tube (20) open at both ends is suitably used, and oriented with its longitudinal axis in the inflow direction, flow sensing means being arranged inside the measurement tube. In this way there is obtained good measurement accuracy within a large flow range.

ENVIRONMENTAL CONTROL SYSTEM

An environmental control system is provided and includes equipment to generate an environmental control effect, a damper associated with a zone to control a portion of the environmental control effect permitted to affect the zone by assuming one of various damper positions and a capacity controller operably coupled to the equipment and the damper to control operation of the equipment and to adjust the damper to assume the one of the various damper positions based on a demand of the zone and a capacity of the equipment.

AIR-CONDITIONING DEVICE

When indoor machines (C-E) are performing a cooling operation, an air conditioning device (100) controls the third channel switching valves (first electromagnetic valve (11a), second electromagnetic valve (11b), third electromagnetic valve (11c), and fourth electromagnetic valve (11d)) so that the number of intermediate heat exchangers actuating as evaporators is greater than that during the main cooling operation. During the main cooling operation, the air conditioning device (100) sets the target value of the evaporation temperature or the intake pressure in the compressor (1) so as to be the same or less than that when the indoor machines (C-E) are performing a cooling operation, and controls the frequency of the compressor (1) and the capacity of the heat-source-device-side heat exchanger (3).

HVAC system with environmental contaminant protection

A heating, ventilating and air conditioning system providing enhanced protection from environmental contaminants such as chemical, biological or radioactive contaminants by maintaining a positive pressure inside the evaporator compartment thereby reducing the possibility of contaminant entry from the lower pressure ambient environment. The system also increases air flow over the evaporator coil by using a radial fan that provides an improved and efficient diffused air flow over the evaporator coil and enables use of a smaller and lighter evaporator compartment.

Method and apparatus for controlling a blower motor in an air handling system to provide constant pressure

Apparatus and method for controlling a motor having a stationary assembly with a plurality of winding stages for carrying motor current and further having a rotatable assembly in driving relation with a blower in an air handling system. The apparatus provides control of the pressure over a range of flow restrictions to maintain air pressure in the system at a relatively constant preselected level. The apparatus receives a preselected pressure signal representing the preselected air pressure level. A microprocessor, responsive to both the preselected pressure signal and a motor speed signal, generates a desired torque signal which is a function of the preselected pressure signal, the speed signal and a previous desired torque signal. The desired torque signal is compared to a signal representing motor torque and a comparison signal representing the comparison is generated. An IC control applies a motor voltage to one or more of the winding stages at a time in accordance with the comparison ...

Environmental air distribution control system powered by system pressure

An environmental air distribution control system regulates the flow of air under pressure by using the system pressure itself to effect the desired control. This is accomplished by using one or more pressure regulating valves, each pressure regulating valve being adapted to selectively vary the pressure drop across its output impedance to thereby control the rate of flow of air.

DEVICE FOR GOVERNING THE PRESSURE OR QUANTITY OF A FLOWING GASEOUS MEDIUM

DATA CENTRE AND APPARATUS AND METHOD FOR DATA CENTRE COOLING

A system for controlling automatically the setting of a damper in a ventilation duct

POSITIVE AND NEGATIVE PRESSURE SWITCHING VENTILATING EQUIPMENT

PURPOSE: To perform the ventilation by a single ventilating device for clean room by a method wherein a minor differential pressure adjustor for adjusting minor differential pressure between the outdoor and indoor is attached, which operates an exhaust air amount adjusting valve and fan so that the positive pressure and negative pressure within the room can be changed over. CONSTITUTION: The minor differential pressure adjusting device 31 detects a differential pressure between the indoor pressure P1 and the outdoor pressure PO and converts the detected value into an electronic signal, which is inputted into a controller 33. An indoor pressure adjustor 34 in the controller 33 compares the detected differential pressure to an indication point of the indoor pressure, and changes the opening degree of an automatic air amount adjustor valve 28 based on the comparison so that the amount of exhaust air 26 can be changed accordingly. By this, the air amount relationship between the air 2 introduced ...

Air-conditioning device

When indoor machines (C-E) are performing a cooling operation, an air conditioning device (100) controls the third channel switching valves (first electromagnetic valve (11a), second electromagnetic valve (11b), third electromagnetic valve (11c), and fourth electromagnetic valve (11d)) so that the number of intermediate heat exchangers actuating as evaporators is greater than that during the main cooling operation. During the main cooling operation, the air conditioning device (100) sets the target value of the evaporation temperature or the intake pressure in the compressor (1) so as to be the same or less than that when the indoor machines (C-E) are performing a cooling operation, and controls the frequency of the compressor (1) and the capacity of the heat-source-device-side heat exchanger (3).

CONTROLLING METHOD OF HYBRID DESICCANT DEHUMIDIFICATION APPARATUS

The present invention relates to a controlling method of hybrid desiccant dehumidification apparatus. The controlling method dehumidifies and increases the temperature by cooling and dehumidifying the air with an evaporator and passing the air through a desiccant dehumidification apparatus; supplies recycled air heated by condensation heat of a cooler condenser as a recycling heat source of the desiccant dehumidification; and discharges high-temperature and high-humidity air separated through thermal exchange with a desiccant to the outside. The present invention combines a cooling apparatus with a desiccant dehumidification apparatus into a single apparatus, thereby reducing the size of the apparatus and significantly reducing operating costs. To achieve this purpose, the method selectively conducts cooling, dehumidification, heating, and blowing of air flow in accordance with temperature and humidity conditions of a dehumidification area; maintains target temperature and humidity in the dehumidification area by producing and supplying humidification-controlled air by controlling a bypass part connecting an outlet of the condenser with an exhaust to the dehumidification area; and continuously operates the dehumidification apparatus by controlling a bypass connecting an outlet of the condenser with the exhaust line and lowering the cooling medium pressure in the condenser when a cooling medium pressure increases to an excessive level.

SMOKE CONTROL SYSTEM FOR SHIPS

A smoke control system for ships with at least two sections (22, 23), isolated from each other by bulkheads and decks. The system includes at least one fan unit (17; 18), air distributors (20, 21) for supply of fresh-air respective evacuation of consumed air from said sections, ducts (24) that connect the fan unit and the air distributors with each other and at least one fire detector (13) arranged in each section. A release of state of alert via a supervision unit (10) selectively generates a forced flue gas extraction from one or several sections in the ship and increases selectively the atmospheric pressure in other sections. The smoke control system includes extra, normally inactive exhausting points (25) for flue gas, arranged individually or in groups within each section which are selectively possible to activate via the supervision unit (10). The ordinary air conditioning system's flow and pressure in the exhaust air duct are reversed by detection of a state of fire. Flow and pressure ...

Process and device for the internal pressure control of a ventilated enclosure

Internal pressure regulation within enclosed but ventilated space The enclosed space (1), e.g. a rail carriage, has ventilation ducts (5, 6) carrying inward (q1) and outward (q2) air-flows, differing by a quantity (qf) representing leakage. Each duct contains a fan (10) and an adjustable (14, 15) flow-control device (11). An internal pressure (P1) sensor (13) inputs to a regulator (12) operating both flow-control actuators (14, 15). A memory (16) records a selected reference pressure. Above this pressure, the regulator reduces the in-flow, leaving the out-flow duct open; below, the out-flow, only, is reduced. The regulator ensures, in real time, that the difference between instantaneous flows continually compensates for leakage, keeping the internal pressure constant. Optionally, separate compensating ducts are provided, parallel to the main ducts.

Whole House Ventilation System

A whole house ventilation control system is disclosed for a house HVAC system including a thermostat, supply and return air plenums and an HVAC fan. The thermostat selectively controls the HVAC system to maintain the desired temperature and resulting in a variable operating cycle period between successive on times. A fresh air intake duct is between an exterior intake vent and the return air plenum. A stale air exhaust duct is between the return air plenum and an exterior exhaust vent. The control system comprises a controllable intake damper in the fresh air intake duct and a controllable exhaust damper in the stale air exhaust duct. A controller is operatively connected to the house HVAC fan and the controllable dampers. The controller stores a desired fresh air exchange rate and is further adapted to predict an upcoming cycle period for a next successive operating cycle and calculating a fresh air vent timer responsive to the desired fresh air exchange rate and the predicted upcoming cycle period. The controller controls the dampers to open at least one of the dampers for the fresh air vent time during the next successive operating cycle. 1. A control system for a whole house ventilation system comprising a house air handling system including a fan , a thermostat , and supply and return air plenums , the thermostat selectively controlling the air handling system to maintain desired temperature and resulting in a variable operating cycle period between successive on times , the control system comprising:an air exchange duct between one of the plenums and an exterior vent;a controllable damper in the air exchange duct; anda controller operatively connected to the house air handling system fan and the controllable damper, the controller storing a desired fresh air exchange rate, and being further adapted to predict an upcoming cycle period for a next successive operating cycle of the air handling system and calculating a fresh air vent time responsive to the desired ...

METHOD AND SYSTEM FOR CONTROLLING THE TEMPERATURE OF COMPONENTS

Temperature-control system used for heating or cooling in a method for controlling temperature of a component includes connected temperature-control device, temperature-control arrangement, supply line, and return line. The system additionally has a controller having a valve, an actuator, a supply temperature sensor, and a return temperature sensor. A temperature difference between the supply temperature and the return temperature of a fluid circulating in the system is registered using the supply temperature sensor and the return temperature sensor and also a regulator. Proceeding from this temperature difference, the regulator causes the actuator to set a degree of opening of the valve so the temperature difference is in a selected value range. The valve always has a minimal degree of opening in the open state. 14. A method for controlling the temperature of a component () using a temperature-control system;{'b': '1', 'claim-text': [{'b': 3', '2, 'a) a temperature-control device (), which is implemented for heating or cooling a temperature-control fluid ();'}, {'b': 5', '2', '4, 'b) a temperature-control arrangement (), which is implemented for conducting the temperature-control fluid () through a component () to be controlled in temperature;'}, {'b': 6', '3', '5', '2, 'c) a supply line (), via which the temperature-control device () is connected to the temperature-control arrangement () to supply the temperature-control fluid ();'}, {'b': 7', '5', '3', '2, 'd) a return line (), via which the temperature-control arrangement () is connected to the temperature-control device () to return the temperature-control fluid (); and'}, {'b': 8', '9', '10', '9', '6', '7', '11', '12', '8', '10, 'e) a controller (), which comprises a valve () having an actuator (), which is implemented to set a degree of opening of the valve (), which is inserted in the supply line () or return line (), and a supply temperature sensor () and a return temperature sensor (); wherein the ...

AIR-CONDITIONING DEVICE

A control/regulation unit and a sensor device in an air-conditioning device enable detecting presence of an analyte in room air to infer the quality of the room air. A light source emits light into the room on a light path that is reflected to a light-sensitive detector. The air-conditioning device is controlled/regulated as a function of an output of the detector. If the analyte is situated on the light path, the light is scattered and/or absorbed such that the detector detects a smaller quantity of light, on the basis of which it is possible to infer the presence of the analyte. The light source can be pivoted to set various light paths through the room to determine where the analyte is situated in the room based on the output of the detector for each light path. The air-conditioning device can controlled to selectively influence the atmospheric environment locally. 114-. (canceled)15. An air-conditioning device for influencing the atmospheric environment in a room , comprising:a control and regulation unit; and a radiation source emitting, during operation, radiation into the room on a beam path having a propagation direction pivotable over at least part of the room, such that various radiation paths through the room can be set, and', 'a detector, arranged such that at least part of the radiation emitted by the radiation source and diffusely reflected in the room during operation can fall directly or indirectly onto the detector which is sensitive to at least the radiation, the detector producing at least one output signal for the radiation paths that can be set, dependent on presence and/or concentration, in the beam path, of a specific analyte that is to be detected, and on a light quantity or an intensity of the radiation which falls on the detector, the control and regulation unit configured to control and/or regulate the air-conditioning device as a function of the output signal of the detector., 'at least one sensor device, each including'}16. The air- ...

CLEAN ROOM CONTROL SYSTEM AND METHOD

In a system and method of controlling particulate count in a clean room having a number of compartments/zones in series, in response to a first level of energy consumption by speed adjustable fans supplying a first volume of air per unit of time to the clean room, differential air pressures are established in the clean room compartment/zone-by-compartment/zone in series from a first compartment/zone which has a requirement for the highest air pressure to a last compartment/zone which has a requirement for the lowest air pressure. In response to a second level of energy consumption by the speed adjustable fans supplying a second volume of air per unit of time to the clean room, the same differential air pressures are substantially maintained in the clean room. 1. In a clean room defining a plurality of compartments/zones and including an air handling system having a plurality of speed adjustable fans and a plurality of position controllable return air dampers , wherein the air handling system is operative for supplying pressurized air to the clean room , a method of controlling particulate count in the clean room comprising:(a) controlling speeds of the plurality of fans and/or positions of the plurality of dampers whereupon air pressure in the clean room decreases compartment/zone-by-compartment/zone in series from a first compartment/zone which has a requirement for a lowest particulate count and hence a highest air pressure in the clean room to a last compartment/zone which has a requirement for a highest particulate count and hence a lowest air pressure in the clean room, wherein, in a direction from the first compartment/zone to the last compartment/zone, each compartment/zone in the series has a lower pressure than an immediately preceding compartment/zone; and(b) changing the speeds of the plurality of fans and/or the positions of the plurality of return air dampers in a manner that changes a volume of air per unit of time that moves through the clean room ...

MANAGEMENT APPARATUS FOR AIR-CONDITIONING SYSTEM

A management apparatus for an air-conditioning system is obtained which can divide a layout drawing into regions for each monitored space and establish correspondence between each equipment device arranged in individual regions and its block identification information. On the basis of positional information and block information, block information for a region corresponding to an installation position is assigned to each equipment device and a plurality of equipment devices are divided for each piece of the block information to perform at least one of monitoring of status and control of an operation. 1. A management apparatus for an air-conditioning system , which monitors status of and controls operations of a plurality of equipment devices including at least an air-conditioning unit , comprising:a storage device configured to store information on a layout drawing indicating a layout of one or a plurality of monitored spaces, positional information indicating an installation position of each of the equipment devices in the layout drawing, and block information having range information and block identification information, the range information dividing the layout drawing into regions for at least each of the monitored spaces and indicating a range of each of the regions, the block identification information identifying each of the regions;a display device; and cause the display device to display the layout drawing that displays an installation position of each of the equipment devices, on a basis of the information on the layout drawing and the positional information,', 'assign, to each of the equipment devices, the block identification information for the region corresponding to the installation position, on a basis of the positional information and the block information, and', 'divide the plurality of equipment devices for each piece of the block identification information, and perform at least one of monitoring of status and control of an operation., 'a ...

Hvac damper system

An illustrative damper system includes a damper blade that is configured to be positioned within a duct, such as a bypass duct of an HVAC system. A shaft is in communication with the damper blade, and an actuator or force adjustment mechanism is in communication with the shaft. The actuator or force adjustment mechanism may include a housing and a spring therein, where the spring is in communication with the shaft. The shaft, the damper blade, and the spring may be configured such that the shaft may affect movement of the damper blade about a rotation axis offset from a diametrical axis of the damper blade.

ROOM PRESSURE CONTROLLING SYSTEM AND ROOM PRESSURE CONTROLLING METHOD

A room pressure controlling system includes: a room pressure correction controlling portion that controls a supply air valve or an exhaust valve, whichever is operated as a room pressure controlling valve, so that a between-room differential pressure between an applicable facility and a reference room that is set to a reference room pressure will match a room pressure set point; an offset flow rate set point switching portion that switches an offset flow rate set point when an instruction has been received from an outside to switch the applicable facility between positive and negative pressure; and a room pressure set point switching portion that switches the room pressure set point in coordination with switching of the offset flow rate set point.

AIR FLOW RATE CONTROLLING SYSTEM AND AIR FLOW RATE CONTROLLING METHOD

A flow rate controlling system includes: a flow rate balance determining portion that determines a supply flow rate, regulated by a supply air valve, and a common exhaust flow rate, regulated by a common exhaust air valve, so that a difference between the supply flow rate and an exhaust flow rate, regulated by the common exhaust air valve, matches a set point; a valve monitoring portion that monitors the supply air valve, the common exhaust air valve, and a local exhaust air valve; and a flow rate changing portion that issues a flow rate changing instruction to the flow rate balance determining portion. When there is a fault in the supply air valve and/or the common exhaust air valve, the flow rate balance determining portion, upon receipt of the flow rate changing instruction from the flow rate changing portion, changes neither the supply nor common exhaust flow rate.

Method for Scheduling Heating/ Cooling for a Climate Controlled Area

A method of controlling a heating, ventilating, and air conditioning system on a customized schedule utilizes a master controller and a plurality of satellite vents. Each of the plurality of satellite vents is associated with a vent address which can be addressed through the master controller. A plurality of actuation commands, wherein each of the actuation commands contains a vent position which is transmitted to a specific vent of the plurality of satellite vents. The master controller utilizes a wireless transmitter to broadcast the actuation commands. Next, each of the plurality of satellite vents periodically listen for the actuation commands. A specific command of the actuation commands is executed if the vent address of the actuation command matches the physical address of the specific vent and a current time matches a set time of the specific command. 1. A method for controlling a heating , ventilating , and air conditioning (HVAC) system on a customized schedule , the method comprises the steps of:providing a master controller and a plurality of satellite vents for a climate controlled area, wherein each of the plurality of satellite vents is associated with a vent address within the climate controlled area;retrieving a plurality of actuation commands for a set time through the master controller, wherein each of the plurality of actuation commands includes a vent position and is associated with the vent address for one of the plurality of satellite vents;tracking current time with the master controller;broadcasting the plurality of actuation commands from the master controller to each of the plurality of satellite vents,if the current time does match the set time;enabling each of the plurality of satellite vents to periodically listen for the plurality of actuation commands; andexecuting a specific command from the plurality of actuation commands in order to reposition a specific vent according the vent position of the specific command,if the vent address ...

BUILDING PRESSURE CONTROL

The air flow of an HVAC system for a multi-story building B is controlled by optimizing the pressure setpoint at the return air plenum PL-1 used for removing or recirculate air from the building, by measuring a pressure differential between the building B air and atmosphere A air at a sensor location P-2, computing a desired pressure differential between the building B air and atmosphere A air, based upon a computed stack effect pressure that is expected to develop at the sensor location on the building for the current inside and outside air temperature in the absence of mechanical action, and controlling the return air fan and damper D-1 to pressurize the air in at the sensor location to produce the desired pressure differential between the building B air and atmosphere A air at the sensor P-2 location. 1. A method of controlling the air flow of an HVAC system for a multi-story building , the HVAC system including a heating and air conditioning system for supplying conditioned air to the building , and a return air path for removing air from the building , the return air path including a recirculate output for delivering return air to the conditioning system , and a relief output for exhausting return air to the atmosphere surrounding the building , the method comprising:a. measuring a pressure differential between the building air and atmosphere air at a sensor location,b. computing a desired pressure differential between the building air and atmosphere air, based upon a computed stack effect pressure that is expected to develop at the sensor location on the building for the current inside and outside air temperature in the absence of mechanical action, andc. controlling the return air path to pressurize the air in at the sensor location to produce the desired pressure differential between the building air and atmosphere air at the sensor location.2. The method of wherein controlling the return air path comprises controlling a speed of a return fan in the return ...

Make-up air system and method

Embodiments of the invention provide a system capable of reducing negative pressure. The system includes a make-up air system that can be configured and arranged to be installed within a structure, such as a building. The system can also include a pressure switch that is configured and arranged to sense a pressure within an exhaust duct coupled to an exhaust device. The pressure switch can also be configured to communicate an activation signal and a deactivation signal to the make-up air system. In some embodiments, communication of the activation and deactivation signals can be at least partially dependent on the pressure within the exhaust duct. Moreover, the pressure switch can be configured and arranged to be retroactively coupled to at least one of the exhaust duct and the exhaust device.

Method of Adaptive Control of a Bypass Damper in a Zoned HVAC System

A zoned HVAC system comprises an HVAC unit including a climate control system and an air mover. In addition, the system comprises a supply air duct in fluid communication with the outlet of the HVAC unit. Further, the system comprises a return air duct in fluid communication with the inlet of the HVAC unit. Still further, the system comprises a plurality of zones positioned between the supply air duct and the return air duct. Moreover, the system comprises a bypass duct extending between the supply air duct and the return air duct. The bypass duct includes an active bypass damper having an open position, a closed position, and a plurality of partially opened positions. The system also comprises a control device configured to control the position of the bypass duct.

REGULATION METHOD FOR REGULATING AN AIR CONDITIONING SYSTEM

The object of this invention a regulation method for regulating an air conditioning system suitable for independently regulating the temperature of a plurality of zones. The air conditioning system comprises a thermal cycle machine. According to various embodiments, the thermal cycle machine is capable of delivering a cold airflow, a hot airflow or both. This flow is divided into smaller flows supplied to each of the zones to be regulated. The method according to the invention allows regulating these smaller flows as well as the operating conditions of the thermal cycle machine. According to various embodiments, the method additionally incorporates more complex variants involving variables such as pressure or thermal inertia. Likewise, according to one embodiment the air conditioning system incorporates a particular distributor configuration simplifying the installation of said regulation system. 1. A regulation method for regulating an air conditioning system where said system comprises:{'sub': m', 'm, 'a) a thermal cycle machine for generating an airflow at a specific temperature, and a pressure greater than the atmospheric pressure, where said machine has a signal input interface suitable for specifying at least the machine fan speed V, or the machine set point temperature T, or both; allowing the regulation of thermal power and the adjustment of the supplied air discharge,'} an inlet coupled to the outlet of the machine,', {'sub': 'i', 'a plurality n of outlets for conditioning a plurality of zones where each of the outlets i=1 . . . n in turn comprises a valve with an adjustable actuator that can be adjusted according to a degree of aperture A,'}], 'b) a distributor comprising{'sub': i', 'i, 'c) a set of n temperature sensors STz, i=1 . . . n each of them intended for being located in each of the zones to be conditioned, for providing a temperature signal Tzfor the temperature measured in the i-th zone,'} [{'sub': i', 'i, 'n signal inputs for the reading of the ...

AIR GULLY MANIFOLD

An aerodynamically smooth air manifold designed for use with an underground shelter located very close to ground zero, including a manifold body; a bottom plate under the manifold body; a manifold cover atop the manifold body; a baffle; an air pipe; a gully surrounding the top outside manifold body; a rolled angle ring surrounding the bottom outside manifold body; a plurality of first fasteners that secure a bottom flange of the air pipe and the bottom plate together; and a plurality of second fasteners that secure the rolled angle ring and the bottom plate together. 1. An air manifold designed for use with an underground shelter comprising:a manifold body;a bottom plate disposed beneath said manifold body;a manifold cover disposed on top of said manifold body;a baffle comprising a baffle body extending downward from and attached to said manifold cover and a baffle lip extending inward from said baffle body at a right angle from said baffle body;an air pipe comprising a top lip, a bottom flange, and an air pipe body extending between said top lip and said bottom flange, wherein said top lip of said air pipe is disposed above said baffle lip and wherein said bottom flange of said air pipe is disposed directly on top of and is securable to said bottom plate;a blast valve disposed around said air pipe body;a gully surrounding said manifold body, disposed on an outside and top of said manifold body, wherein said gully comprises a manifold side where said gully is attached to said manifold body and said manifold side comprises a screen; an other side; and a floor comprising drain holes;a rolled angle ring surrounding said manifold body, disposed on said outside and bottom of said manifold body, wherein said rolled angle ring comprises an angle ring bottom disposed directly upon and attachable to said bottom plate and an angle ring side that is flush with said manifold body;a plurality of first fasteners that are able to secure said bottom flange of said air pipe and said ...

AIR CONDITIONING INDOOR UNIT

An air conditioning indoor unit includes a movable first air direction adjustment plate that changes an up and down direction of the outlet air, a second air direction adjustment plate disposed adjacent to the air outlet, and a control unit that controls postures of the first and second adjustment plates. The second adjustment plate has at least a front end portion housed in an indoor unit front portion outside a blowing path when housed. In a Coanda effect utilization mode the control unit controls the postures of the first and second adjustment plates such that the second adjustment plate is spaced apart from the indoor unit front portion and a height position of a rear end portion is lower than when operation is stopped, and the adjustment plates form a predetermined angle to change the outlet air to a Coanda air flow along an undersurface of the second adjustment plate. 1. An air conditioning indoor unit having a Coanda effect utilization mode that utilizes the Coanda effect , which is a phenomenon where , if there is a wall surface near a flow of a gas , the gas tends to flow in a direction along the wall surface even if the direction of the flow and a direction of the wall surface are different , to guide , in a predetermined direction , a flow of outlet air blown out from an air outlet , the air conditioning indoor unit comprising:an indoor unit front portion disposed outside a blowing path;a movable first air direction adjustment plate configured to change an up and down direction of the outlet air;a second air direction adjustment plate disposed adjacent to the air outlet, the second air direction adjustment plate including a front end portion and an outside surface, andwhen the second air direction adjustment plate is housed in the indoor unit front portion, the front end portion is housed in the indoor unit front portion, and the outside surface is outside the blowing path; anda control unit configured to control postures of the first air direction ...

POSITIVE PRESSURE VENTILATION IN ENCLOSED HOUSINGS

The invention provides a positively pressurized housing ventilated by establishing and/or maintaining a pressure differential between at least two chambers in the housing. The invention also provides a method for ventilating a substantially closed housing that involves establishing and/or maintaining a pressure differential between at least two chambers in the housing. 1. A method for ventilating a substantially closed housing comprising at least one overpressure chamber and at least one living chamber in communication through one or more interconnecting air passages , said method comprising maintaining a pressure differential between the overpressure chamber and the living chamber , wherein the pressure in the overpressure chamber is higher than the pressure in the living chamber and the pressure in the living chamber is higher than the pressure at the exterior of the housing.2. The method of claim 1 , wherein the pressure in the overpressure chamber is maintained using one or more fans that blow air into the overpressure chamber claim 1 , and wherein the fans are regulated using a controller in response to the pressure in the overpressure chamber.3. The method of claim 1 , wherein the pressure in the living chamber is maintained by regulating airflow from the overpressure chamber into the living chamber through the one or more interconnecting air passages claim 1 , and by adjusting airflow out of the living chamber through one or more outlets in an external wall separating the living chamber and the exterior of the housing.4. The method of claim 3 , wherein airflow through the one or more interconnecting air passages is regulated through inlet dampers in the interconnecting air passages claim 3 , and wherein the inlet dampers in the interconnecting air passages are regulated using a controller in response to temperature in the living chamber.5. The method of claim 3 , wherein airflow through the one or more outlets is regulated through use of outlet dampers claim ...

OCCUPANCY-BASED WIRELESS CONTROL OF MULTIPLE ENVIRONMENTAL ZONES WITH ZONE CONTROLLER IDENTIFICATION

An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones. 1. A system for wirelessly controlling multiple environmental zones , comprising:a plurality of zone controllers, each zone controller being associated with one of the environmental zones and being configured to send wireless communications to other devices of the system, each wireless communication including a zone controller identifier that uniquely identifies the zone controller with respect to the other zone controllers; receive the wireless communication from at least one of the zone controllers;', 'determine, based on the wireless communications from the zone controllers, whether an environmental zone at which the temperature control device is located is occupied or unoccupied; and', 'control an HVAC system to adjust a temperature of the environmental zone at which the temperature control device is located based on whether the environmental zone is occupied or unoccupied., 'a temperature control device configured to2. The system of claim 1 , wherein the temperature control device is further configured to:determine a desired temperature of the environmental zone at which the temperature control device is located; andcontrol the HVAC system to adjust the temperature of the environmental zone at which the ...

Fluid flow switch for radon mitigation system monitoring

An apparatus for monitoring air flow in a vent pipe of a radon mitigation system includes a base connectable to the vent pipe. The base houses a circuit that is actuatable to indicate the condition of the radon mitigation system. An air flow switch actuates the circuit, the air flow switch includes a vane that is supported by the base and extends into the interior of the vent pipe through an opening in a wall of the vent pipe. The vane includes a wing having portions that are deflectable to permit installation of the wing through an opening in the vent pipe. The deflectable portions return under their own resilience to their non-deflected conditions once they pass through the opening in the vent pipe.

Systems and methods for pivotable evaporator coils

A heating, ventilation, and air conditioning (HVAC) system includes an enclosure and an evaporator coil disposed within the enclosure. The HVAC system also includes a pivot member coupled between an edge portion of the evaporator coil and the enclosure. The pivot member is configured to enable the evaporator coil to pivot relative to the enclosure to adjust an operating angle of the evaporator coil during operation of the HVAC system. Additionally, the HVAC system includes an actuator configured to enable pivoting of the evaporator coil to a target operating angle based on an operating parameter input.

Air Mixing Device

A portable enclosure is configured to mix room air with a controlled amount of exterior air via one or more flexible conduits disposed between the enclosure and an exterior window. At least one flexible conduit is connected to a barrier structure which is designed for sealable placement within the window. One or more mixing dampers are employed to control the amount of exterior air supplied to the enclosure. An air moving device delivers exterior air in controlled amounts to the enclosure which is designed to be movable so that a more desirable (fresher, cooler, and more contaminant free) stream of air is deliverable to the personal space of an occupant to satisfy ventilation and temperature requirements.

Blower

Disclosed is a blower including a blower main body configured to move air from a main body suction port formed in a lower end thereof to a main body discharge port formed in an upper end thereof using an air-conditioning module provided therein, and a variable nozzle connected to the upper end of the blower main body so as to suction the air moved from the blower main body through a nozzle suction port thereof and discharge the air through a nozzle discharge port thereof, the variable nozzle including a pair of nozzle guides provided therein to adjust a partial pressure of the air to be discharged through the nozzle discharge port.

AIR DUCT SEALING SYSTEM FOR OBSTRUCTING OR DIRECTING AIRFLOW THROUGH PORTIONS OF AN AIR DUCT SYSTEM

The present invention discloses removable air duct sealing systems for obstructing and directing airflow through portions of an air duct system. Some systems include a support plate having an opening and a flexible connector having a catch and a tail, the catch for connecting the connector to an air duct system component and the tail for passing through the opening in the support plate. Some systems include a fastener connected to the support plate, the fastener being capable of interacting with the connector in dependence upon the positioning of the fastener. In some systems, the fastener has a catch capable of being configured in a position that prevents the fastener from moving in a direction relative to the flexible connector but will allow the fastener to move in another direction. Some systems also include a gasket for restricting airflow when the gasket is pressed toward the air duct system component. 1. A removable air duct sealing system for obstructing airflow through portions of an air duct system , the removable air duct sealing system comprising:a support plate having a first side and a second side, the support plate having an opening extending through the support plate from the first side to the second side;a flexible connector, the flexible connector having a catch and a tail, the catch capable of connecting the flexible connector to an air duct system component, the tail capable of passing through the opening in the support plate;a fastener operatively connected to the support plate, the fastener having a fastener catch, the fastener capable of interacting with the tail of the flexible connector in dependence upon the positioning of the fastener catch, the fastener catch capable of being configured in a first position that prevents the fastener from moving in a first direction along the tail relative to the flexible connector, the fastener catch capable of being configured in a second position that allows the fastener to move in the first direction ...

AIR CONDITIONING INDOOR UNIT

An air conditioning indoor unit includes a movable first air direction adjustment plate that changes an up and down direction of the outlet air, a second air direction adjustment plate disposed adjacent to the air outlet, and a control unit that controls postures of the first and second adjustment plates. The second adjustment plate has at least a front end portion housed in an indoor unit front portion outside a blowing path when housed. In a Coanda effect utilization mode the control unit controls the postures of the first and second adjustment plates such that the second adjustment plate is spaced apart from the indoor unit front portion and a height position of a rear end portion is lower than when operation is stopped, and the adjustment plates form a predetermined angle to change the outlet air to a Coanda air flow along an undersurface of the second adjustment plate. 1. An air conditioning indoor unit having a Coanda effect utilization mode that utilizes the Coanda effect , which is a phenomenon where , if there is a wall surface near the flow of a gas , the gas tends to flow in a direction along the wall surface even if the direction of the flow and a direction of the wall surface are different , to guide , in a predetermined direction , a flow of outlet air blown out from an air outlet , the air conditioning indoor unit comprising:a movable first air direction adjustment plate configured to change an up and down direction of the outlet air;a second air direction adjustment plate disposed adjacent to the air outlet, the second air direction adjustment plate when housed, having at least a front end portion housed in an indoor unit front portion outside a blowing path; anda control unit configured to control postures of the first air direction adjustment plate and the second air direction adjustment plate, the second air direction adjustment plate assumes a posture in which the second air direction adjustment slate is spaced apart from the indoor unit front ...

FAN ARRAY CONTROL SYSTEM

A fan array fan section in an air-handling system includes a plurality of fan units arranged in a fan array and positioned within an air-handling compartment. One preferred embodiment may include an array controller programmed to operate the plurality of fan units at peak efficiency by computing the power consumed in various configurations and selecting the configuration requiring minimum power to operate. 1. A method for controlling an array of fan units in an air handling system that conditions air to be delivered to a building , the method comprising:providing a select level for an environmental parameter based on a building requirement, the environmental parameter representing at least one of static pressure or air flow;setting a number of operative fan units to an initial number;measuring, at a sensor, the environmental parameter to obtain a measured value representative of the at least one of the air flow or static pressure;operating a controller in a feedback control loop to control the operative fan units based on the select level for the environmental parameter and the measured value from the sensor; andvarying the number of operative fan units to maintain the operative fan units within a desired range.2. The method of claim 1 , further comprising utilizing the controller to vary at least one of the flow rate or static pressure continuously or periodically as a level of the environmental parameter for the building changes.3. The method of claim 1 , wherein the controller varies at least one of the flow rate or static pressure by varying the number of operative fan units within the array.4. The method of claim 1 , wherein the environmental parameter represents flow rate claim 1 , the providing operation including providing a first level relative to a maximum fan-array flow rate capacity during a first time period and providing a second level relative to the maximum fan-array flow rate capacity during a second time period.5. The method of claim 1 , wherein ...

AIR-CONDITIONING APPARATUS

When indoor units are performing a cooling operation, an air-conditioning apparatus controls third flow passage switching valves, for example a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve, so that a number of intermediate heat exchangers operating as evaporators is greater than in a cooling main operation. During the cooling main operation, a target value for suction pressure or evaporating temperature at a compressor is set equal to or lower than that in a case in which the indoor units are performing the cooling operation, and a frequency of the compressor and a capacity of a heat-source-side heat exchanger are controlled. 1. An air-conditioning apparatus comprising:a heat source unit including a compressor, a first flow passage switching valve that switches a flow passage of a first refrigerant, and a heat-source-side heat exchanger;a plurality of indoor units each including a use-side heat exchanger; anda relay unit including a plurality of intermediate heat exchangers, second flow passage switching valves that switch operation of the indoor units between heating and cooling, and third flow passage switching valves that switch connection of the intermediate heat exchangers between a condenser and an evaporator,the air-conditioning apparatus in whicha primary-side cycle is formed through which a primary-side heat transfer medium circulates between the heat source unit and the relay unit,a secondary-side cycle is formed through which a secondary-side heat transfer medium circulates between the relay unit and the indoor units, andheat exchange is performed between the primary-side cycle and the secondary-side cycle in the intermediate heat exchangers,wherein when all of operating indoor units out of the plurality of indoor units are performing a cooling operation,the third flow passage switching valves are controlled such that the number of the intermediate heat exchangers operating as evaporators is greater ...

Method of controlling airflow through an air diffuser

In an air conditioning system the rate of airflow through a diffuser is controlled by varying the permitted travel of the air flow control disc. The disc is displaceable between a fully opened position in which the maximum designed airflow through the diffuser occurs and a fully closed position in which the minimum designed air flow through the diffuser occurs. The method of the present invention comprises sensing duct pressure at the diffuser and adjusting the limits of travel of the air flow control disc. Adjustment is in the direction which restricts the permitted travel of the disc towards the fully closed position and allows travel of the disc beyond the fully open position in the event that a pressure below designed duct pressure is detected. Adjustment is to permit travel of the disc beyond the fully closed position and restrict travel of the disc towards the fully opened position in the event that a pressure above designed duct pressure is detected in the ducting.

Control device for air conditioner

The present disclosure simplifies the H-bridge circuit of the direct current motor for driving the damper (door) that switches the air passages in the indoor unit of an air conditioning device. The control device for an air conditioner that takes in inside or outside air and conditions the air inside an air conditioning unit using an evaporator and a heater core is provided with: a first actuator and a second actuator that drive the multiple dampers installed inside the air conditioning unit for switching the air passages; and three half-bridge circuits that control the first actuator and the second actuator sharing one of the half-bridge circuits. Of the multiple dampers, the first actuator is connected to the inside/outside air switching damper. Of the multiple dampers, the second actuator is connected to at least one air mix damper.

MULTIPLE PUMP EVAPORATIVE MEDIA SYSTEM

An evaporative media system having multiple media stages each served by a separate pump is disclosed. In one aspect, the evaporative media system has a first media stage and a second media stage. A first pump is provided that is configured to deliver water from the first compartment of the water storage tank to the first media stage. Additionally, a second pump is provided that is configured to deliver water from the first compartment of the water storage tank to the second media stage. Additional media stages and pumps may be provided as well. The disclosed configuration eliminates the need for individual staging valves, provides a higher level of operational redundancy, reduces electrical consumption, and can be provided at a lower cost, as compared to many existing systems. 1. An evaporative media system comprising:a. a water storage tank having a first compartment;b. a first media stage;c. a second media stage;d. a first pump configured to deliver water from the first compartment of the water storage tank to the first media stage; ande. a second pump configured to deliver water from the first compartment of the water storage tank to the second media stage;f. wherein the first and second pumps are at least partially located within the first compartment.2. The evaporative media system of claim 1 , further comprising:a. a third media stage; andb. a third pump configured to deliver water from the first compartment of the water storage tank to the third media stage.3. The evaporative media system of claim 1 , further comprising:a. a controller for selectively activating and deactivating the first and second pumps.4. The evaporative media system of claim 3 , wherein:a. the controller is an electronic controller configured to selectively activate and deactivate the first and second pumps to maintain a leaving air temperature or relative humidity set point.5. The evaporative media system of claim 2 , further comprising:a. a controller for selectively activating and ...

VARIABLE SPEED PUMPING SYSTEM WITH PRESSURE INDEPENDENT CONTROL VALVES

A system for managing the flow of fluids within a closed-loop system includes a pump controller and a variable-speed pump in communication with a conduit circuit including at least one one pressure-independent control valve (PICV). By using PICVs instead of conventional, two-way, two-way, pressure-dependent valves, the pump controller can monitor system needs and adjust the the speed of the variable-speed pump to more efficiently deliver pressure to the system without overshooting flow requirements, leading to less energy consumed and less cost incurred. A method method of variable-speed pumping including the use of PICVs is also disclosed. 1. A system for controlling fluid flow in a closed loop comprising ,a variable-speed pumping device in fluid communication with one or more conduits that define a closed system,at least one pressure-independent control valve (PICV) in fluid communication with the one or more conduits,at least one flow sensing device in communication with the variable-speed pumping device,wherein the at least one flow sensing device detects a first system measurement, andwherein a speed of the variable-speed pump is decreased, andwherein the at least one flow sensing device detects a second system measurement, andwherein the at least one flow sensing device compares the first system measurement to the second system measurement, determining whether to increase or decrease the speed of the variable-speed pump based on system needs.2. The system of wherein the flow sensing device is selected from the group consisting of a flow meter claim 1 , blade meter claim 1 , device in full pump flow claim 1 , and a sensorless pump flow calculation device.3. The system of wherein the decrease in speed of the variable-speed pump is defined as about 5%.4. The system of wherein the detection of the first and second system measurements are separated by a non-instantaneous delay.5. The system of wherein the non-instantaneous delay is defined as about 5 seconds.6. The ...

DYNAMIC CYCLE AIR CONDITIONER WITH INCREMENTAL DEHUMIDIFICATION IN AN INDIRECT EVAPORATIVE COOLER

Dynamically cycling of air in an indirect evaporative cooler. A heat exchanger includes a dry passage separated from a wet passage by a membrane, the dry passage including an intake portion, an outlet portion, and a loop portion. By selectively passing intake air from the intake portion and/or recirculation air from the loop portion using a mixing valve, air is moved into and through the loop portion. The air within the heat exchanger can be selectively passed outside through the outlet portion and/or recirculated by the mixing valve. In this manner air is able to be circulated a number of loop circuits through the loop portion, enabling cooling and/or dehumidifying of air. 1. An indirect evaporative cooler apparatus comprising:a heat exchanger comprising a dry passage and a wet passage, the dry passage in thermodynamic communication with the wet passage and separated from the wet passage by a substantially liquid-impermeable membrane having a hydrophobic surface facing the dry passage and a hydrophilic surface facing the wet passage, the dry passage comprising an intake portion, an outlet portion, and a loop portion;a mixing valve disposed in the dry passage and configured to selectively pass intake air from the intake portion, recirculation air from the loop portion, or a combination thereof;a first fan disposed downstream of the mixing valve and adapted to move a first volume of air into and through the loop portion;a diverting valve disposed in the dry passage and configured to selectively pass outlet air to the outlet portion, recirculation air to the mixing valve, or a combination thereof; anda controller adapted to operate the mixing valve, the first fan, the diverting valve, and a combination thereof, to circulate air a number of loop circuits through the loop portion for cooling and dehumidifying the first volume of air.2. The apparatus of claim 1 , wherein the number of loop circuits is based on one of dry passage air temperature claim 1 , dry passage air ...

Dynamic cycle air conditioner with incremental dehumidification incorporating multiple circuits of the volume of air

Incremental dehumidification of a volume of air in an indirect evaporative cooler. Dehumidification processes are incorporated with the cooling processes, such that within each circuit a volume of air follows through the indirect evaporative cooler and includes dehumidification as well as cooling of the volume of air. Subsequent circuits of the volume of air, which commence at a lower starting temperature than the prior circuit, result in further dehumidification of the air.

DYNAMIC CYCLE AIR CONDITIONER WITH INCREMENTAL DEHUMIDIFICATION INCORPORATING A WET PASSAGE AND A DRY PASSAGE

Incrementally cooling and dehumidifying a volume of air that is substantially at its dew point. Developing a pressure differential within an indirect evaporative cooler between a dry passage and ambient air and/or a wet passage and ambient air, to evaporate liquid outside the dry passage and condense liquid within the wet passage. A pressure differential can be developed by selectively pushing and/or blocking air at predetermined portions of the wet and dry passages. 1. An indirect evaporative cooler apparatus comprising:a heat exchanger comprising a dry passage and a wet passage, the dry passage in thermodynamic communication with the wet passage and separated from the wet passage by a substantially liquid-impermeable membrane having a hydrophobic surface facing the dry passage and a hydrophilic surface facing the wet passage, the dry passage comprising an intake portion, an outlet portion, and a loop portion;a mixing valve disposed in the dry passage and configured to selectively pass intake air from the intake portion, recirculation air from the loop portion, or a combination thereof;a first fan disposed downstream of the mixing valve and adapted to move a first volume of air into and through the loop portion;a diverting valve disposed in the dry passage and configured to selectively pass outlet air to the outlet portion, recirculation air to the mixing valve, or a combination thereof; anda controller adapted to operate the mixing valve, the first fan, the diverting valve, and a combination thereof, to generate a barometric pressure differential in the heat exchanger sufficient to condense water from the first volume of air.2. The apparatus of claim 1 , wherein the dry passage comprises air traps arranged to partially block the movement of a portion of the first volume of air through the loop portion and to develop a positive pressure in the loop portion relative to ambient pressure.3. The apparatus of claim 1 , wherein the dry passage comprises a heat exchanger ...

Dynamic cycle air conditioner with incremental dehumidification and stored water maintained at a temperature lower than the environment

Water temperature conservation for increasing efficiency of an indirect evaporative cooling apparatus. A heat exchanger of the indirect evaporative cooling apparatus includes a dry passage separated from a wet passage by a membrane, the dry passage including an intake portion, an outlet portion, and a loop portion. Water captured from condensation during a dehumidification process can be stored and/or used to wet the wet passage of the heat exchanger to enhance evaporative function. Stored water can be maintained at a relatively lower temperature than the environment, helping to maintain a lower internal apparatus temperature and to further cool circulating air.

FAN CHARACTERIZATION AND CONTROL SYSTEM

A fan characterization and control system includes a chassis housing a plurality of components and a fan system. A controller system is coupled to the components and the fan system and configured to detect fan devices in the fan system that are connected to the controller system via respective fan connectors. The controller system determines fan performance categories of each of the fan devices based on signals communicated by each of the fan devices through at least one pin on the respective fan connectors. The controller system accesses a fan performance database that stores different fan performance categories and respective fan performance characteristics for each of the different fan performance categories. The controller system uses fan performance information that is associated in the fan performance database with each of the fan performance categories determined for the fan devices to configure the components and the fan system for operation. 1. A fan characterization and control system , comprising:a chassis;a plurality of components located in the chassis;an air mover system located in the chassis; detect a plurality of air mover devices in the air mover system that are connected to the controller system via respective air mover connectors;', 'determine air mover performance categories of each of the plurality of air mover devices based on signals communicated by each of the plurality of air mover devices through at least one pin on the respective air mover connectors;', 'access an air mover performance database that stores a plurality of different air mover performance categories and respective air mover performance characteristics for each of the plurality of different air mover performance categories; and', 'use air mover performance information that is associated in the air mover performance database with each of the air mover performance categories determined for the plurality of air mover devices to operate the plurality of components and the air ...

AIR DUCT SEALING SYSTEM FOR OBSTRUCTING OR DIRECTING AIRFLOW THROUGH PORTIONS OF AN AIR DUCT SYSTEM

The present invention discloses adjustable air duct sealing systems for obstructing airflow through portions of an air duct system. Such systems may include an adjustable frame assembly configured to allow changes to a perimeter of the adjustable frame assembly. Systems may also include an actuator pole connector configured to attach the adjustable air duct sealing system to an actuator pole. Systems may include two or more support arms such that each support arm connects the actuator pole connector to the adjustable frame assembly and each support arm moveably connects to the actuator pole connector to allow the support arms to adjust to changes in the perimeter of the adjustable frame assembly. Some systems also include a sheet cover configured across the adjustable frame assembly to obstruct airflow through at least a portion of the adjustable frame assembly. 1. An adjustable air duct sealing system for obstructing airflow through portions of an air duct system , the removable air duct sealing system comprising:an adjustable frame assembly configured to allow changes to a perimeter of the adjustable frame assembly;an actuator pole connector configured to attach the adjustable air duct sealing system to an actuator pole;two or more support arms, each support arm connecting the actuator pole connector to the adjustable frame assembly, each support arm moveably connected to the actuator pole connector to allow the support arms to adjust to changes in the perimeter of the adjustable frame assembly; anda sheet cover configured across the adjustable frame assembly to obstruct airflow through at least a portion of the adjustable frame assembly.2. The adjustable air duct sealing system of wherein the sheet cover comprises an air duct connector capable of directing airflow through the adjustable frame assembly at the air duct connector while obstructing airflow through other portions of the adjustable frame assembly.3. The adjustable air duct sealing system of wherein the ...

Air conditioning apparatus with control device for varying the angle of air conditioning discharge flaps

An air conditioning apparatus includes a control device that controls a swing action of flaps of an air conditioning apparatus. The flaps are swung up and down. The control device includes an operation mode determining section, a swing pattern storage area and a control command generator. The operation mode determining section determines at least an air-cooling operation mode and an air-warming operation mode that are operation modes of the air conditioning apparatus. The swing pattern storage area stores a plurality of swing patterns that include information pertaining to the swing action. The control command generator generates a control command of the air conditioning apparatus on the basis of a swing pattern corresponding to the mode determined by the operation mode determining section from among the plurality of swing patterns.

HVAC DAMPER SYSTEM

An illustrative damper system includes a damper blade that is configured to be positioned within a duct, such as a bypass duct of an HVAC system. A shaft is in communication with the damper blade, and an actuator or force adjustment mechanism is in communication with the shaft. The actuator or force adjustment mechanism may include a housing and a spring therein, where the spring is in communication with the shaft. The shaft, the damper blade, and the spring may be configured such that the shaft may affect movement of the damper blade about a rotation axis offset from a diametrical axis of the damper blade. 1. A forced air damper actuator assembly for applying a rotational bias force to a shaft of a damper blade that is disposed within an air duct in order to control a crack pressure of the air duct , the forced air damper actuator assembly comprising:a damper actuator configured to apply a rotational bias force to a shaft of a damper blade;an actuator housing for housing the damper actuator;a bias force adjuster accessible from outside of the actuator housing, the bias force adjuster usable by a user to manually adjust a bias force setting, which sets the rotational bias force that is applied by the damper actuator to the shaft; anda standoff for spacing the bias force adjuster from the air duct by a distance that facilitates an application of insulation around the air duct while leaving the bias force adjuster exposed and available for manual adjustment by the user.2. The forced air damper actuator assembly of claim 1 , wherein the bias force adjuster is adjustable by hand without the use of tools.3. The forced air damper actuator assembly of claim 2 , wherein the bias force adjuster comprises a handle that is rotatable by hand to change the bias force setting.4. The forced air damper actuator assembly of claim 2 , wherein the bias force adjuster is rotated in a first direction to increase the bias force setting and is rotated in a second opposite direction to ...

VARIABLE AIR VOLUME MODELING FOR AN HVAC SYSTEM

Using information available from the controller or controllers of air-handling units, a remote server uses a heuristic model to determine settings for the air-handling units. Rather than just using rules for each air-handling unit, a model-based solution determines the settings. The model is used to optimize operation of the air distribution. In additional or alternative embodiments, measurements are gathered and used to derive analytics. The measurements may include data not otherwise used for rule-based control of the air handling unit. The analytics are used to predict needs, as inputs to the modeling, identify problems, and/or identify opportunities. 1. A control system for heating , ventilation , and air conditioning (HVAC) , the control system comprising:an air-handling unit having a plurality of sensors from the group of temperature, relative humidity, fan speed, pressure, input power, and fan flow for a variable speed drive of a fan of the air-handling unit;a network connected with a controller of the air-handling unit;a memory configured to store measurements from the sensors of the air-handling unit and a heuristic model of the air-handling unit; anda cloud server remote from the air-handling unit and connected with the network, the cloud server configured to receive the measurements, to identify an operational parameter for the air-handling unit solving the heuristic model using the measurements, and output the operational parameter.2. The control system of wherein the heuristic model comprises a machine-learnt classifier claim 1 , and wherein the processor is configured to solve by input of the measurements to the machine-learnt classifier.3. The control system of wherein the machine-learnt classifier comprises an on-going machine learning classifier.4. The control system of wherein the heuristic model comprises a physics-based model claim 1 , and wherein the processor is configured to solve by iterative optimization of the physics-based model.5. The ...

AIR-CONDITIONING APPARATUS

An air-conditioning apparatus includes an internal heat exchanger in which refrigerant flowing through a refrigerant pipe between an outdoor heat exchanger and an expansion device and refrigerant flowing through a refrigerant pipe between the expansion device and an indoor heat exchanger exchange heat, a pressure sensor, a first temperature sensor that detects temperature of the refrigerant flowing into the expansion device in the cooling operation, and a control unit configured to control the opening degree of the expansion device based on results of detection by the pressure sensor and the first temperature sensor in the cooling operation. 1. An air-conditioning apparatus comprising:a refrigeration cycle circuit in which a compressor, a first heat exchanger, an expansion device, and a second heat exchanger are connected sequentially to circulate a refrigerant therethrough;a third heat exchanger configured to cause the refrigerant flowing through a refrigerant pipe between the first heat exchanger and the expansion device to exchange heat with the refrigerant flowing through a refrigerant pipe between the expansion device and the second heat exchanger;a detector configured to detect at least one of a temperature and a pressure of the refrigerant flowing through one of the first heat exchanger and the second heat exchanger serving as a condenser;a first temperature sensor configured to detect a temperature of the refrigerant flowing into the expansion device; anda control unit configured to control an opening degree of the expansion device based on results of detection by the detector and the first temperature sensor, and configured to control the opening degree of the expansion device such that a difference between a condensing temperature and a detection temperature of the first temperature sensor is within a predetermined range, the condensing temperature being a condensing temperature of the refrigerant flowing through the condenser, and obtained from a ...

AIR-CONDITIONING MANAGEMENT APPARATUS AND AIR-CONDITIONING SYSTEM

An air-conditioning management apparatus configured to control operation of a plurality of air conditioners includes a plurality of indoor units, the air-conditioning management apparatus including: a control unit configured to, during normal control of maintaining an indoor temperature, carry out air-conditioning control of shifting control from the normal control to power-saving control when each piece of load data respectively indicating surrounding environments of the plurality of indoor units satisfies a specific load condition, in which, even in a case in which pieces of load data of some of the plurality of indoor units do not satisfy the load condition, the control unit shifts the control to the power-saving control when it is predicted, based on history of past operation state data of the some of the plurality of indoor units, that a level of comfort of an indoor environment does not decrease due to the shift to the power-saving control. 1. An air-conditioning management apparatus configured to control operation of a plurality of air conditioners each including a plurality of indoor units , the air-conditioning management apparatus comprising:a controller configured to, during normal control of maintaining an indoor temperature at a set temperature, carry out air-conditioning control of shifting control from the normal control to power-saving control when each of pieces of load data respectively indicating surrounding environments of the plurality of indoor units satisfies a specific load condition,wherein, even in a case in which pieces of load data of some including one of the plurality of indoor units do not satisfy the specific load condition, the controller shifts the control to the power-saving control when it is predicted, based on a history of past operation state data of the some including one of the plurality of indoor units, that a level of comfort of an indoor environment does not decrease due to the shift to the power-saving control.2. The air- ...

AIR INFORMATION MANAGEMENT APPARATUS

An air information management apparatus includes: an obtainer that obtains an air state of a target area from a sensor installed in the target area or an area surrounding the target area; storage in which an air state record that is a record of the air state obtained by the obtainer is stored; an information processor that derives, from the air state record stored in the storage, statistical information on the air state measured for the target area during a predetermined period; and a display controller that causes the display apparatus to display, as information indicating an air environment in the target area, the statistical information derived by the information processor. 1. An air information management apparatus , comprising:an obtainer that obtains an air state of a target area from a sensor installed in either one of the target area and an area surrounding the target area;an information processor that derives, from a record of the air state, statistical information on the air state measured for the target area during a predetermined period; anda display controller that causes a display apparatus to display, as information indicating an air environment in the target area, the statistical information derived by the information processor.2. The air information management apparatus according to claim 1 ,wherein the statistical information includes at least one of a total number of times a predetermined event related to the air state occurs in the target area during the predetermined period and an average value of the air state measured for the target area during the predetermined period.3. The air information management apparatus according to claim 1 ,whereinthe information processor further selects, from among a plurality of recommendations, a recommendation associated with the air environment indicated by the statistical information, andthe display controller further causes the display apparatus to display the recommendation selected by the information ...

Control System For Exhaust Gas Fan System

Systems and methods for controlling an exhaust gas fan system. The control system may control one or more components of the exhaust system to optimize system performance and improve energy efficiency. The control system may be designed to maintain a substantially constant pressure in the exhaust header and provide a substantially constant flow through the exhaust fans. The control system may include software and hardware that allow the control system to control one or more of: modulation of one or more by-pass dampers; adjustment of the nozzle outlet area; varying the speed of the fans; the number and staging of fans. By utilizing and controlling one or more of these functions, the amount of energy being used may be minimized/optimized. 110-. (canceled)11. A control system configured to exhaust gas from a building of the type including ducting , a mixing plenum in fluid communication with the ducting , at least one by-pass damper supported by the mixing plenum , an exhaust fan supported by the mixing plenum and configured to draw gas through the mixing plenum so as to discharge the gas as exhaust gas through an outlet nozzle , and a variable speed fan drive that operates the exhaust fan at variable speeds; the control system comprising:a static pressure probe disposed upstream of the exhaust fan in the ducting, the static pressure probe operable to measure a static pressure of the exhaust gas,wherein the control system is configured to cause the at least one by-pass damper to move from an open position toward a closed position as the measured static pressure increases while the fan is operating at a predetermined minimum speed, and the control system is configured to cause the variable speed drive to increase a speed of the exhaust fan, when the at least one by-pass damper approaches the closed position or is at the closed position, in response to a further increase in the measured static pressure.12. The control system recited in claim 11 , further comprising a ...

METHOD FOR AIR FLOW FAULT AND CAUSE IDENTIFICATION

Methods and systems for detecting and identifying faults in air-cooled systems are provided. The systems and methods may utilize a prediction model based on an energy balance relationship. In certain methods, one or more measured parameters associated with the air-cooled system may be compared with corresponding parameters generated by the prediction model. One or more faults may be detected and identified based upon deviations between the measured and detected system parameters.

CONTROLLED DILUTION FLOW IN CRITICAL ENVIRONMENTS

A controlled dilution fluid flow pattern is described. In an embodiment, a fluid supply device is configured for controlling a pattern of a flow of a fluid within a critical room. The critical room comprises a critical area subject to contamination. A first fluid supply nozzle is configured to provide a first fluid supply jet to provide a first flow of the fluid towards a substantial center of the critical area. A second fluid nozzle is configured to provide a second fluid supply jet to provide a second flow of the fluid towards a perimeter of the room. A momentum of the first fluid supply jet and a momentum of the second fluid supply jet are adjusted so that the substantial center of the critical area is flushed by the first flow and penetration of the second flow into the substantial center of the critical area is generally prevented. In other embodiments, a HVAC system and method are discussed along with the features of the device. 1. A fluid supply device configured for controlling a pattern of a flow of a fluid within a critical room , wherein the critical room comprises a critical area subject to contamination , comprising:a first fluid supply nozzle configured to provide a first fluid supply jet to provide a first flow of the fluid towards a substantial center of the critical area; anda second fluid nozzle configured to provide a second fluid supply jet to provide a second flow of the fluid towards a perimeter of the room;wherein a momentum of the first fluid supply jet and a momentum of the second fluid supply jet are adjusted so that the substantial center of the critical area is flushed by the first flow and penetration of the second flow into the substantial center of the critical area is generally prevented.2. The fluid supply device of claim 1 , wherein the fluid supply device is configured in a circumferential form circumventing the center.3. The fluid supply device of claim 1 , wherein the first flow and the second flow are configured to have an ...

HEAT SOURCE SYSTEM, AND DEVICE AND METHOD FOR CONTROLLING COOLING WATER SUPPLY DEVICE

In order to achieve a reduction in energy consumption in a cooling water supply device without using a database, an equipment control device () of a cooling water supply device: uses the load of a chiller, and a cooling water outlet temperature lower limit setpoint determined in accordance with the set temperature for the cooling water outlet of the chiller, to set a cooling water inlet temperature lower limit setpoint; sets, as the cooling water inlet temperature setpoint, the higher of the lower limit setpoint and the cooling water inlet temperature lower limit value as determined from the outside wet-bulb temperature; and generates a control command for a cooling tower fan and a control command for the cooling water flow volume, so as to match the cooling water inlet temperature and the cooling water outlet temperature respectively with the cooling water inlet temperature setpoint and the cooling water outlet temperature lower limit setpoint which have been set. 1. A device for controlling a cooling water supply device which includes a cooling tower and supplies cooling water to a condenser of a chiller , comprising:information acquisition means for acquiring a cooling water outlet temperature lower limit setpoint which is determined in accordance with a set temperature for a chilled water outlet in the chiller, from the chiller;lower limit temperature setting means for determining a cooling water inlet temperature lower limit setpoint using the cooling water outlet temperature lower limit setpoint and the load of the chiller;temperature setting means for comparing a cooling water inlet temperature lower limit value determined from an outside wet-bulb temperature and the cooling water inlet temperature lower limit setpoint, and for setting the higher one as a cooling water inlet temperature setpoint; andcommand generation means for generating a control command for a cooling tower fan and a control command for a cooling water flow rate, so as to match a cooling ...

RAINOUT CONTROL IN A PRESSURE SUPPORT SYSTEM

A pressure support system includes a pressure generating device, an airflow path, and a control system. The control system is structured to determine a first measurement indicative of an amount of water vapor in the airflow path or an amount of condensation in the airflow path and generate a number of control signals structured to control an environmental control device structured to control an environmental parameter in an environment including the pressure support system, wherein the control signals are generated based on at least the first measurement and are configured to cause the environmental control device to adjust the environmental parameter in a manner that will reduce a degree or a likelihood of rainout in the airflow path, and transmit the control signals to the environmental control device so that it may be controlled to reduce the degree or likelihood of rainout. 1. A pressure support system for delivering a flow of breathing gas to an airway of a patient , comprising:a pressure generating device structured to generate the flow of breathing gas;an airflow path coupled to the pressure generating device and structured to carry the flow of breathing gas; and determine a first measurement indicative of an amount of water vapor in the airflow path or an amount of condensation in the airflow path;', 'generate a number of control signals structured to control an environmental control device structured to control an environmental parameter in an environment including the pressure support system, wherein the number of control signals are generated based on at least the first measurement and are configured to cause the environmental control device to adjust the environmental parameter in a manner that will reduce a degree or a likelihood of rainout in the airflow path; and', 'transmit the number of control signals to the environmental control device., 'a control system, wherein the control system stores and is structured to execute a number of routines, the ...

Misting Fan System and Method

A fan system for use on oil and gas rigs. The system includes a hydraulic motor for generating a rotational force from a hydraulic fluid, a water pump member for pumping water, a control member for controlling the flow of hydraulic fluid and water. The system also includes a fan device having a plurality of individual blades for providing an airflow, with the fan device being operatively connected to the hydraulic pump member and a nozzle connected to the water pump member for spraying a mist, with the nozzle containing a variable opening for varying the pressure and volume of water discharged. A leak path is provided for capturing and channeling leaking fluids so that fluids are contained within the fan device not in the air stream. 1. A method of spraying a worker with a water mist on an oil or gas rig comprising the steps of:a) providing a misting fan system comprising: a hydraulic fan motor for generating a rotational force from a hydraulic fluid, the hydraulic fan motor being contained within a cover that is affixed to a mounting block, the mounting block being affixed to a mounting block support that traverses a shroud; a water pump member for pumping water; a control member, the control member controlling the flow of the hydraulic fluid and the water; a fan device positioned within the shroud, the fan device having a plurality of blades for providing an airflow, the fan device being operatively connected to the hydraulic fan motor; one or more nozzles each fluidly connected to the water pump member for spraying a mist, the one or more nozzles each containing a variable opening for varying the volume of water discharged from the nozzle; a drip pan positioned below the fan device, the drip pan providing a fluid leak containment area;wherein the mounting block support includes an internal fluid leak path in fluid communication with the mounting block through which hydraulic fluid leaked from the hydraulic motor flows for containment in the fluid leak containment ...

Systems for circulating air inside a manhole vault

A system for circulating air inside a manhole vault. The system includes an air-moving device in fluid communication with the manhole vault and configured to circulate the air inside the manhole vault to prevent a concentration of combustible gasses or to enhance cooling therein.

INDOOR UNIT OF AIR-CONDITIONING APPARATUS AND AIR-CONDITIONING APPARATUS

An indoor unit of an air-conditioning apparatus including a body placed on a wall surface of a room that is an air-conditioned space, the indoor unit including a temperature sensor disposed at a position projecting from the body, and including a temperature detector that detects a temperature based on heat radiation from a target and a motor that causes the temperature detector to rotate, the position being a place where the temperature sensor is capable of detecting a temperature in all the horizontal directions by rotating the temperature detector. 1. An indoor unit of an air-conditioning apparatus , the indoor unit having a body placed on a wall surface of a room that is an air-conditioned space , the indoor unit comprisinga temperature sensor disposed at a position projecting from the body, and including a temperature detector configured to detect a temperature based on heat radiation from a target and a driver configured to cause the temperature detector to rotate, the position being a place where the temperature sensor is capable of detecting a temperature in all the horizontal directions by rotating the temperature detector.2. The indoor unit of the air-conditioning apparatus of claim 1 , wherein the temperature sensor further includes a stopper that defines a detection start location and a detection end location of the temperature detector.3. The indoor unit of the air-conditioning apparatus of claim 1 , further comprising a controller configured to determine claim 1 , as being the object claim 1 , a wall on which the body is placed based on the temperature detected by the temperature sensor.4. The indoor unit of the air-conditioning apparatus of claim 3 , wherein the controller calculates an amount of heat to be supplied to the room including a temperature at a location determined as the wall on which the body is placed claim 3 , and based on the calculated amount of heat claim 3 , performs air-conditioning control.5. The indoor unit of the air-conditioning ...

Air duct sealing system for obstructing or directing airflow through portions of an air duct system

The present invention discloses removable air duct sealing systems for obstructing and directing airflow through portions of an air duct system. Such air duct sealing systems may include a support plate having opening extending through the support plate from a first side to a second side. Such systems may also include a flange with an interior surface along the opening extending away from one side. Such systems may also include a sawtooth connector operatively coupled to the interior surface of the flange. An exemplary sawtooth connector may include detents configured to catch a backside of a louver of the air vent grill to hold the removable air duct sealing system in place covering the air vent grill.

Air-conditioning apparatus

An air-conditioning apparatus includes a control unit performing liquid refrigerant equalization control for correcting an imbalance in liquid refrigerant amount between accumulators. The control unit includes a first liquid refrigerant equalization control unit controlling an output of a fan to perform the liquid refrigerant equalization control and a second liquid refrigerant equalization control unit controlling a frequency of a compressor to perform the liquid refrigerant equalization control. The second liquid refrigerant equalization control unit determines an increase or reduction in frequency of the compressor so that a total refrigerant circulation amount is not below a predetermined amount. When a value is within a predefined acceptable range, the control unit selects the first liquid refrigerant equalization control unit to perform the liquid refrigerant equalization control. When the value is outside the acceptable range, the control unit selects the second liquid refrigerant equalization control unit to perform the liquid refrigerant equalization control.

Method for Solving Charge Imbalance in Existing Split Heat Pump

A system and method are described that help in alleviating charge imbalance issues, especially in HVAC systems that are operable in both heating and cooling modes. In various embodiments a compensator is attached to the liquid line of an outdoor heat exchanger. A heater is attached to the compensator. During cooling operations the heater is turned on to help drive refrigerant out of the compensator. During heating operations the heater is turned off, allowing excess refrigerant to migrate to the compensator and alleviate high pressure in the system.

Air conditioner and control method thereof

본 발명의 일 실시예에 따른 공기 조화기는, 적어도 하나의 실내기, 적어도 하나의 실내기에 연결되고, 전기를 사용하여 제1 압축기를 구동하며, 냉매의 열교환을 위한 제1 실외열교환기를 구비하는 EHP 실외기, EHP 실외기와 병렬 연결되어 적어도 하나의 실내기에 연결되고, 연소 가스를 통해 제2 압축기를 구동하는 엔진, 냉매의 열교환을 위한 제2 실외 열교환기 및 엔진의 폐열을 이용하여 냉매와 열교환하는 폐열 열교환기를 구비하는 GHP 실외기 및 EHP 실외기와 GHP 실외기의 난방 운전이나 제상 운전을 제어하며, EHP 실외기의 제상 운전시 GHP 실외기의 제2 압축기로부터의 고압 냉매를 EHP 실외기로 공급하는 제어 유닛을 포함하는 것을 특징으로 한다. An air conditioner according to an embodiment of the present invention includes an EHP outdoor unit having at least one indoor unit and at least one indoor unit and having a first outdoor heat exchanger for driving the first compressor using electricity, An engine connected in parallel to the EHP outdoor unit and connected to at least one indoor unit, the engine for driving the second compressor through the combustion gas, the second outdoor heat exchanger for heat exchange of the refrigerant, and the waste heat exchange And a control unit for controlling the heating operation or the defrost operation of the GHP outdoor unit and the EHP outdoor unit and the GHP outdoor unit and supplying the high pressure refrigerant from the second compressor of the GHP outdoor unit to the EHP outdoor unit during the defrosting operation of the EHP outdoor unit .

An air conditioner

The present invention relates to an air conditioner comprising a bypass pipe for guiding a refrigerant evaporated in an evaporator to a condenser, wherein the bypass pipe comprises: a first conduit for guiding at least a portion of the refrigerant evaporated in the evaporator to the condenser; a second conduit connected to the first conduit, and allowing heat-exchange with the refrigerant of the condenser; a third conduit connected to the second conduit to discharge the refrigerant heat-exchanged with the refrigerant of the condenser from the condenser. Therefore, according to the present invention, there is an advantage that the refrigerant evaporated in the evaporator is heated by the condenser so that the required power of a compressor can be reduced.

Air-conditioner system

본 발명은 공기조화기 시스템에 관한 것으로, 실외로부터 공급되는 외기(Outdoor Air)와 실외로 배출되는 배기(Exhaust Air), 실내 순환 후 재 공급되는 환기(Return Air)를 조절하고, 환기와 외기가 혼합된 혼합기 또는 외기를 설정된 온도로 조절하여 냉/온의 급기(Supply Air)를 실내로 공급하는 공조유닛, 공조유닛으로 열교환을 위한 열원을 공급하는 적어도 하나의 실외기, 공조유닛의 동작상태 데이터를 수신하고, 실외기와 통신하여 공조유닛의 동작을 제어하는 제어기 및 공조유닛에 대한 제어메뉴를 출력하고, 제어메뉴를 통해 입력되는 데이터를 제어기로 전송하며, 공조유닛 및 실외기의 동작상태에 대한 모니터링화면을 출력하는 인터페이스유닛;로 구성되어, 환기와 외기를 조절하여 실내를 환기시키는 동시에 실내온도를 제어함으로써, 열효율을 향상시키고 에너지를 절약하며, 인터페이스 유닛을 통해 용이하게 그 동작상태를 모니터링할 수 있고, 그에 따른 관리의 편의성 및 효율성이 향상된다. [0001] The present invention relates to an air conditioner system, and more particularly, to an air conditioner system that controls outdoor air supplied from outside, exhaust air discharged to the outside, and return air supplied after indoor circulation, An air conditioning unit for supplying a supply air of cold / hot to the room by adjusting the mixed air or ambient air to a predetermined temperature, at least one outdoor unit for supplying a heat source for heat exchange to the air conditioning unit, A controller for controlling the operation of the air conditioning unit by communicating with the outdoor unit, and a control menu for the air conditioning unit, transmitting the data input through the control menu to the controller, and monitoring the operation status of the air conditioning unit and the outdoor unit And controlling an indoor temperature by controlling the ventilation and the outside air to ventilate the room and improving the thermal efficiency, It saves energy and can easily monitor its operation status through the interface unit, thereby improving the convenience and efficiency of management.

Inhalation Device for Local Ventilation System

The present invention relates to a suction device for a local exhaust system for improving an air flow rate inside a suction duct and the exhaust efficiency of the entire local exhaust system. The suction device for the local exhaust system comprises: a hood formed to connect a connecting opening and a rectangular suction opening larger than a connecting opening; a suction duct coupled to the hood to communicate with the connection opening; and a suction fan installed in a peripheral region of the suction opening to generate a suction air flow from the suction opening toward the connection opening, wherein each of the suction fans is installed at each of four sides of the suction opening to generate the suction air flow directed from the suction opening to the connection opening and includes a plurality of grating exhaust guiding passages arranged in a straight line and isolated from each other and an air flow regulation grid provided in an inner space of a suction duct so that a grid discharge guidance flow path is disposed along the longitudinal direction of the suction duct.

Air conditioning apparatus and control method thereof

환기 청정기 및 이의 제어 방법이 개시된다. 상기 환기 청정기는, 실내 공기를 정화시키는 제1 청정모듈; 실외 공기를 정화시키는 제2 청정모듈; 상기 제1 청정모듈에 의해 정화된 실내 공기 및 상기 제2 청정모듈에 의해 정화된 실외 공기를 각각 또는 혼합하여 토출구를 통해 배출하는 공기 혼합부; 실내 및 실외의 공기 상태를 측정하는 센서부; 및 상기 센서부에 의해 측정된 실내 및 실외의 공기 상태를 기초로 상기 제1 청정모듈 및 상기 제2 청정모듈의 유로를 조절하거나, 상기 제1 청정모듈 및 상기 제2 청정모듈을 통해 유입되는 공기의 유량을 조절하여 동작 모드를 제어하는 제어부를 포함하여 구성될 수 있다.

Supply and exhaust air terminal device

A supply and exhaust air terminal device 10 comprises a blowing fan P1, supplying fresh air L1 into a supply duct 12 and further into the supply and exhaust air terminal device's supply air chamber 13. Supply chamber 13 comprises nozzles (14a1, 14a2... fig 4)) or a nozzle gap, through which air is made to flow into a mixing chamber (15). Fresh supply air L1 induces a circulated airflow L2 from a room H to flow through a heat exchanger (16) into the mixing chamber (15), so that the flows L1+L2 are combined to flow out of the device 10. A first control device 17 controls a bypass flow L3 into the room H in order to control the total flow rate Q1+Q2 into the room H. A second control device 19 controls an exhaust airflow Q3 from the room H through an exhaust air opening into an exhaust air chamber 201 and exhaust duct 20 via a second fan P2. First 17 and second 19 control devices may be linear valves that may be manual controlled or remote controlled via the use of an electric motor. Supply 12 and exhaust 20 ducts may have a pressure control device 11, 21 for controlling the pressure in and out of the device 10. A pressure sensor 18 may be provided in the supply 13 and exhaust 201 chambers 13 to determine airflow.

Clean room control system and method

In a system and method of controlling particulate count in a clean room having a number of compartments/zones in series, in response to a first level of energy consumption by speed adjustable fans supplying a first volume of air per unit of time to the clean room, differential air pressures are established in the clean room compartment/zone-by-compartment/zone in series from a first compartment/zone which has a requirement for the highest air pressure to a last compartment/zone which has a requirement for the lowest air pressure. In response to a second level of energy consumption by the speed adjustable fans supplying a second volume of air per unit of time to the clean room, the same differential air pressures are substantially maintained in the clean room.

Environmental control system and a method for controlling the interior environment of a pressurized compartment

Whole house ventilation system

A control system is disclosed for a house HVAC system including a thermostat, supply and return air plenums and an HVAC fan. The thermostat selectively controls the HVAC system to maintain the desired temperature and resulting in a variable operating cycle period between successive on times. A fresh air intake duct is between an exterior intake vent and the return air plenum. A stale air exhaust duct is between the return air plenum and an exterior exhaust vent. The control system comprises a controllable intake damper in the fresh air intake duct and a controllable exhaust damper in the stale air exhaust duct. A controller is operatively connected to the house HVAC fan and the controllable dampers. The controller predicts an upcoming cycle period for a next successive operating cycle and calculates a fresh air vent time.

HVAC system relay autotuning and verification

Systems and methods for autotuning a HVAC system controller. The method may include receiving a performance coefficient and providing a step-input using an autotuner relay to measure ultimate gain and ultimate period in a controlled HVAC system. The method may also include adjusting the ultimate gain and ultimate period to account for a relay hysteresis, and applying a tuning rule to derive a proportional gain and an integral time for a controller of the HVAC system control loop. The method may further include updating the controller with the proportional gain and integral time, and verifying the proportional gain and integral time. Verifying the proportional gain and integral time may include setting a performance envelope having a tightness related to the performance coefficient, applying a step-input to provoke a closed-loop response, and comparing the closed loop response with the performance envelope to determine whether the closed-loop response is within the envelope.

Monitoring device and monitoring method

실온 변동 제어를 가제어 범위 내에서 운전 가능한지의 여부를 추측하기 쉽게 한다. 감시 장치(20)는, 감시 대상의 VAV 공조 시스템으로부터 실온과 VAV 풍량을 취득하는 정보 취득부(21)와, 감시 대상의 VAV 공조 시스템으로부터 취득한 실온을 그래프 표시하는 실온 표시 처리부(23)와, VAV 풍량으로부터 가제어 범위를 나타내는 막대 그래프의 길이를 연산하는 가제어 범위 연산부(25)와, 가제어 범위 연산부(25)가 연산한 길이의 막대 그래프를, 실온과 겹치도록 하여 표시하는 가제어 범위 표시 처리부(26)를 포함한다. It is easy to guess whether or not the room temperature fluctuation control can be operated within the control range. The monitoring apparatus 20 includes an information acquisition unit 21 for acquiring the room temperature and the VAV air volume from the VAV air conditioning system to be monitored, a room temperature display processing unit 23 for graphically displaying the room temperature acquired from the VAV air conditioning system to be monitored, A control range calculation section 25 for calculating the length of the bar graph indicating the control range from the VAV air flow rate and a bar control section 25 for displaying the bar graph having the length calculated by the control range calculation section 25 so as to overlap with the room temperature And a display processing unit 26.

Regulation method for regulating an air conditioning system

The object of this invention a regulation method for regulating an air conditioning system suitable for independently regulating the temperature of a plurality of zones. The air conditioning system comprises a thermal cycle machine. According to various embodiments, the thermal cycle machine is capable of delivering a cold airflow, a hot airflow or both. This flow is divided into smaller flows supplied to each of the zones to be regulated. The method according to the invention allows regulating these smaller flows as well as the operating conditions of the thermal cycle machine. According to various embodiments, the method additionally incorporates more complex variants involving variables such as pressure or thermal inertia. Likewise, according to one embodiment the air conditioning system incorporates a particular distributor configuration simplifying the installation of said regulation system.

Ventilation system for a perishable goods store

Multiple environmental zone control with integrated battery status communications

An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.

Control system for exhaust gas fan system

Systems and methods for controlling an exhaust gas fan system. The control system may control one or more components of the exhaust system to optimize system performance and improve energy efficiency. The control system may be designed to maintain a substantially constant pressure in the exhaust header and provide a substantially constant flow through the exhaust fans. The control system may include software and hardware that allow the control system to control one or more of: modulation of one or more by-pass dampers; adjustment of the nozzle outlet area; varying the speed of the fans; the number and staging of fans. By utilizing and controlling one or more of these functions, the amount of energy being used may be minimized/optimized.

PROCEDURE FOR OBTAINING THE CONDITIONS OF TEMPERATURE AND RELATIVE HUMIDITY OF INTERIOR ENVIRONMENTS FOR THE OPTIMIZATION OF THERMAL COMFORT AND ENERGY SAVING IN CLIMATE CONTROL.

Procedimiento de obtención de las condiciones de temperatura y humedad relativa de ambientes interiores para la optimización del confort térmico y el ahorro energético en la climatización. Procedure for obtaining the conditions of temperature and relative humidity of indoor environments for optimization of thermal comfort and energy saving in the air conditioning. Una tercera parte de la energía primaria se consume en edificios no industriales. A third of the primary energy is consume in non-industrial buildings. Para la optimización energética en ambientes interiores se realizó el estudio de los índices de confort. For energy optimization in environments interiors the study of comfort indices was carried out. Dada la complejidad y coste de los sistemas de captación de las variables necesarias para la obtención de dichos índices de forma continuada, por medio del módulo de confort, ha surgido la necesidad de desarrollo de un nuevo procedimiento basado en la obtención de las constantes del modelo definido por la ASHRAE. Este modelo permite estimar estos índices en función de la temperatura y la humedad relativa. Para ello se ha realizado la regresión de los datos reales obtenidos por medio del módulo de confort. Given the complexity and cost of the systems capture of the variables necessary to obtain said indices continuously, through the comfort module, has the need arose to develop a new procedure based in obtaining the constants of the model defined by the ASHRAE. This model allows estimating these indices based on the temperature and relative humidity. For this, the regression of the real data obtained through the module of comfort. Esto permitirá la definición de las características de un ambiente térmico de una forma mucho más sencilla y económica. This will allow the definition of characteristics of a thermal environment in a much more way simple and economical

A fan coil air conditioning system and inlet therefor

Ventilationsanleggning

공기 조화기 및 그 제어방법

본 발명은 히트펌프 공기 조화기 및 그 제어방법에 관한 것이다. 본 발명의 실시예에 따른 공기 조화기의 제어방법에는, 하나 이상의 제 1 실내기가 운전되는 상태에서, 정지되어 있던 제 2 실내기가 온 되어 운전 시작되는 단계; 상기 제 1 실내기의 용량 및 제 2 실내기의 용량에 기초하여, 실내기의 운전율에 관한 변경정보가 인식되는 단계; 상기 실내기의 운전율에 관한 변경정보에 기초하여, 상기 제 1 실내기에 구비되는 실내 팽창장치의 개도를 제어하는 단계; 및 상기 실내기의 운전율에 관한 변경정보에 기초하여, 실외기에 구비되는 실외 팽창장치 또는 과냉각 팽창장치의 개도를 제어하는 단계가 포함된다.

Air conditioner unit and method for operating same

Air conditioner units and methods for operating air conditioner units are provided. A method includes determining an operational state of each heater bank of a plurality of heater banks of the air conditioner unit, and determining a speed of a blower fan of the air conditioner unit when the operational state of every heater bank is active. The method further includes comparing a blower fan input voltage to a voltage threshold value when the speed is a low speed, and deactivating one of the plurality of heater banks when the blower fan input voltage is less than the voltage threshold value.

Environmental control system

An environmental control system is provided and includes equipment to generate an environmental control effect, a damper associated with a zone to control a portion of the environmental control effect permitted to affect the zone by assuming one of various damper positions and a capacity controller operably coupled to the equipment and the damper to control operation of the equipment and to adjust the damper to assume the one of the various damper positions based on a demand of the zone and a capacity of the equipment.

Hollow core door with perimeter air flow and movable damper panels

Hollow core door apparatus for preventing the build up of pressure in a room includes an inside door skin and an outside door skin, and the door skins include openings through which air flows. A center panel is disposed between and spaced apart from the skins. The center panel has an outer perimeter defined by notches through which air flows. Tabs between the notches are used to secure the center panel to the inside and outside door skins. Air flow from the room is through the opening in the inside skin, around the outer perimeter of the panel, and outwardly from the door and room through the outside skin in a non-linear manner. The door alone with normal undercuts and margins, and with its notches and associated structural elements, achieves a Rater-measured pressure differential of equal to or less than 3 pascals with respect to the main body of the building when bedroom room doors are closed. For larger rooms with air flow greater than one hundred fifty cfm, the pressure is equal to or less than 5 pascals. Air flow is controlled by a plurality of movable panels disposed adjacent to the outer perimeter of the center panel. Sensor elements for sensing desired information and for providing output signals, including signals for actuating the movable panels, are included. The air flow outwardly through the door is at least as great as the air flow into the room, thus the door provides internal transfer of air through the door to eliminate air pressure build up in a room, and at the same time limits light, sight, and sound travel through the door.

Method for air flow fault and cause identification

Methods and systems for detecting and identifying faults in air-cooled systems are provided. The systems and methods may utilize a prediction model based on an energy balance relationship. In certain methods, one or more measured parameters associated with the air-cooled system may be compared with corresponding parameters generated by the prediction model. One or more faults may be detected and identified based upon deviations between the measured and detected system parameters.

Air-conditioning apparatus

When indoor units are performing a cooling operation, an air-conditioning apparatus controls four flow passage switching valves, for example a first solenoid valve, a second solenoid valve, a third solenoid valve, and a fourth solenoid valve, so that a number of intermediate heat exchangers operating as evaporators is greater than in a cooling main operation. During the cooling main operation, a target value for suction pressure or evaporating temperature at a compressor is set equal to or lower than that in a case in which the indoor units are performing the cooling operation, and a frequency of the compressor and a capacity of a heat-source-side heat exchanger are controlled.

Method of adaptive control of a bypass damper in a zoned HVAC system

A zoned HVAC system comprises an HVAC unit including a climate control system and an air mover. In addition, the system comprises a supply air duct in fluid communication with the outlet of the HVAC unit. Further, the system comprises a return air duct in fluid communication with the inlet of the HVAC unit. Still further, the system comprises a plurality of zones positioned between the supply air duct and the return air duct. Moreover, the system comprises a bypass duct extending between the supply air duct and the return air duct. The bypass duct includes an active bypass damper having an open position, a closed position, and a plurality of partially opened positions. The system also comprises a control device configured to control the position of the bypass duct.

Control of cooling fan on current

A cooling unit for an agricultural vehicle has a grid for allowing air to enter the unit while limiting debris and a heat exchanger for transferring heat from a coolant to air passing across the heat exchanger. The cooling unit further has a duct with motor driven fan, and a controller to monitor fan current and operate the fan in alternating directions. The controller generates a heat exchanger blockage warning when desirable fan current thresholds are not achieved.

Multi-nodal thermostat control system

An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.

Control device for air conditioner

The present disclosure simplifies the H-bridge circuit of the direct current motor for driving the damper (door) that switches the air passages in the indoor unit of an air conditioning device. The control device for an air conditioner that takes in inside or outside air and conditions the air inside an air conditioning unit using an evaporator and a heater core is provided with: a first actuator and a second actuator that drive the multiple dampers installed inside the air conditioning unit for switching the air passages; and three half-bridge circuits that control the first actuator and the second actuator sharing one of the half-bridge circuits. Of the multiple dampers, the first actuator is connected to the inside/outside air switching damper. Of the multiple dampers, the second actuator is connected to at least one air mix damper.

Air conditioning apparatus with control device for varying the angle of air conditioning discharge flaps

An air conditioning apparatus includes a control device that controls a swing action of flaps of an air conditioning apparatus. The flaps are swung up and down. The control device includes an operation mode determining section, a swing pattern storage area and a control command generator. The operation mode determining section determines at least an air-cooling operation mode and an air-warming operation mode that are operation modes of the air conditioning apparatus. The swing pattern storage area stores a plurality of swing patterns that include information pertaining to the swing action. The control command generator generates a control command of the air conditioning apparatus on the basis of a swing pattern corresponding to the mode determined by the operation mode determining section from among the plurality of swing patterns.

Radon mitigation system monitoring having a fluid flow switch with an adjustable wing

An apparatus for monitoring air flow in a vent pipe of a radon mitigation system includes a base connectable to the vent pipe. The base houses a circuit that is actuatable to indicate the condition of the radon mitigation system. An air flow switch actuates the circuit, the air flow switch includes a vane that is supported by the base and extends into the interior of the vent pipe through an opening in a wall of the vent pipe. The vane includes a wing having portions that are deflectable to permit installation of the wing through an opening in the vent pipe. The deflectable portions return under their own resilience to their non-deflected conditions once they pass through the opening in the vent pipe.