SOFC-система и способ эксплуатации SOFC-системы

Изобретение относится к системе твердооксидного топливного элемента, а также к способу эксплуатации такой системы и может быть применено в энергетике. Система твердооксидного топливного элемента содержит установку реформинга, батарею твердооксидного топливного элемента, топку для получения тепла для установки реформинга. В установку реформинга подается поток газообразного углеводорода и пар. Установка реформинга и топка встроены в один блок для компактности и уменьшения тепловых потерь. В системе предусмотрен блок управления расходом свежего воздуха с помощью нагнетателя. За топкой расположен один или несколько испарителей для охлаждения выхлопного потока топки и выработки пара, который затем подается в установку реформинга. В системе предусмотрен датчик температуры газа, обогащенного водородом, на основании которого блок управления регулирует работу нагнетателя для поддержания содержания кислорода в выхлопном потоке топки в пределах заданного диапазона. Обеспечивается повышение надежности ...

Brennstoffzellenvorrichtung und Verfahren zum Betrieb einer Brennstoffzellenvorrichtung

Um eine Brennstoffzellenvorrichtung bereitzustellen, welche eine unbeschadete Lagerung bei tiefen Temperaturen und/oder einen optimierten Kaltstart ermöglicht, wird vorgeschlagen, dass die Brennstoffzellenvorrichtung wahlweise (a) in einen Normalbetrieb oder (b) in einen Vorbereitungsbetrieb zur Vorbereitung der Brennstoffzellenvorrichtung (100) auf eine Abkühlung, insbesondere unterhalb des Gefrierpunkts von Wasser, oder (c) in einen Heizbetrieb zum Erwärmen der Brennstoffzellenvorrichtung, insbesondere über den Gefrierpunkt von Wasser, versetzbar ist, wobei in dem Vorbereitungsbetrieb die Anodenseite und/oder die Kathodenseite mit dem Füllstoff befüllbar oder befüllt sind und wobei in dem Heizbetrieb der Kathodenseite Oxidator zuführbar oder zugeführt ist, so dass der Oxidator mit chemisch reaktiven Bestandteilen des Füllstoffs exotherm reagiert.

Brennstoffzellensystem, Brennstoffzellenfahrzeug und Steuerverfahren für ein Brennstoffzellensystem

Brennstoffzellensystem, das in einem Brennstoffzellenfahrzeug (10) befestigt ist, wobei das Brennstoffzellensystem aufweist:eine Brennstoffzelle (100);einen Kühlsystemkreislauf (300), der einen Kühlflüssigkeitsversorgungspfad (310) enthält, der dazu eingerichtet ist, der Brennstoffzelle (100) eine Kühlflüssigkeit zuzuführen, einen Radiator (350), der dazu eingerichtet ist, die Kühlflüssigkeit abzukühlen, einen Radiatorventilator (360) und eine Kühlflüssigkeitspumpe (370), die in dem Kühlflüssigkeitsversorgungspfad (310) angeordnet ist, um der Brennstoffzelle (100) Kühlflüssigkeit zuzuführen;eine Steuervorrichtung (200); undein Geschwindigkeitsmessgerät (120), das dazu eingerichtet ist, eine Geschwindigkeit des Brennstoffzellenfahrzeugs (10) zu erlangen, wobeidie Steuervorrichtung (200) in der Lage ist, eine erste Kühlsteuerung durchzuführen, die einen oberen Grenzwert des Antriebsausmaßes des Radiatorventilators (360) gemäß der Geschwindigkeit des Brennstoffzellenfahrzeugs (10) festlegt ...

Temperature measuring method

A fuel cell system comprising a temperature sensor having a physical presence within a conduit for measuring the temperature of a fluid inside the conduit Tg, and a wall temperature sensor for measuring the wall temperature of the conduit Tw. A controller iteratively applies a thermal model to calculate a predicted temperature value TM that is expected to be measured based on the measured temperatures Tg , Tw. When the predicted temperature Tm does not fulfil an interrupt criterion, an input temperature Tgin to be used in a next iterative step is altered based on a difference between the measured temperatures. Preferably, in the first iteration step the input temperature is the conduits internal temperature (Tgin= Tg). The controller may reduce/ increase the input temperature value for use in the next iterative step if the conduits internal temperature is larger/ smaller, respectively, than the wall temperature. The interrupt criterion may be fulfilled when the predicted temperature falls ...

Systems and methods for providing heat control in a multistack fuel cell system

The present disclosure pertains to a system (5) comprising a plurality of power converters (20-1 to 20-n) configured, via a processing device (30), to balance heat from a plurality of fuel cell stacks (10-1 to 10-n). Some embodiments may: set one or more parameter values of one of the power converters (20-1) located at the output of one of the plurality of stacks (10-1) such that the one stack preferentially provides power to a load; determine a heat power of the one stack (10-1) and of one or more other stacks of the plurality of stacks (10-2 to 10-n), each of the heat powers being determined based on a voltage and current that are determined at the input of the respective power converter (20-1 to 20-n); determine whether the heat power of the one stack (20-1) satisfies a criterion; and responsive to a determination that the heat power of the one stack satisfies the criterion, set one or more parameter values of each of the power converters (20- 2 to 20-n) located at the output of the ...

Fuel cell systems and method

A fuel cell system 200 includes a fuel cell stack 205 comprising at least one fuel cell with anode 220 and cathode 210 gas inlets and outlets. The fuel cell system further comprises (i) a reformer 234 comprising an inlet and outlet for anode inlet gas and a reformer heat exchanger, (ii) a pre-heater 262 for heating cathode inlet gas and which comprises a pre-heater heat exchanger, and (iii) a heat source 255 for providing heat source gas. A heat source gas main fluid flow path 240 passes from the heat source to the reformer heat exchanger to the pre-heater heat exchanger, while a heat source gas bypass fluid flow path 250 splits from the heat source gas main fluid flow path upstream of the reformer heat exchanger and is arranged to divert a portion of the heat source gas around the reformer and directly to the pre-heater heat exchanger. The reformer heat exchanger exchanges heat between the anode inlet gas and the heat source gas, and the pre-heater heat exchanger exchanges heat between ...

Regulating a control quantity of a fuel cell with a conditioning unit determining an actual value of the controlled variable a reactant

Um zumindest einen Istwert einer Regelgröße eines Reaktanden einer Brennstoffzelle für eine Regelung mit möglichst geringem Messfehler zu ermitteln, ist vorgesehen, dass mit einem Modell der Konditioniereinheit (3) ein Modellwert der Regelgröße (RGn ) berechnet wird, mit einem Sensormodell (Sn ) für den Messsensor (Sn) ein Modellwert des Istwertes der Regelgröße (RGnm) berechnet wird, aus dem mit dem Messsensor (Sn) gemessenen Istwert der Regelgröße (RGnist) und dem mit dem Sensormodell (Sn ) berechneten Modellwert des Istwertes der Regelgröße (RGnm) ein Korrekturwert (RGcorr) für die Regelgröße (RGn) berechnet wird und der Istwert der zumindest einen Regelgröße (RGnist ) als Summe aus dem Korrekturwert (RGcorr) und dem mit dem Modell der Konditioniereinheit (3) berechneten Modellwert der Regelgröße (RGn ) berechnet wird, wobei dieser Istwert der Regelgröße (RGnist ) auch im Sensormodell (Sn ) zur Berechnung des Modellwerts des Istwertes der Regelgröße (RGnm) verwendet wird.

Verfahren und Vorrichtung zum Ermitteln eines Feuchtigkeitszustandes einer Elektrolytmembran in einem Brennstoffzellensystem

Die vorliegende Erfindung betrifft ein Verfahren zum Ermitteln eines Feuchtigkeitszustandes wenigstens einer Elektrolytmembran (2, 2a) in wenigstens einem Brennstoffzellenstapel (1) in einem Brennstoffzellensystem (30), aufweisend die Schritte: Ermitteln von wenigstens einem stapeldimensionsabhängigen Istwert, Vergleichen des wenigstens einen Istwertes mit wenigstens einem stapeldimensionsabhängigen Referenzwert, Ermitteln wenigstens eines stapeldimensionsabhängigen Vergleichswertes zwischen dem Istwert und dem Referenzwert, und Ermitteln des Feuchtigkeitszustandes der wenigstens einen Elektrolytmembran (2, 2a) anhand des ermittelten Vergleichswertes, wobei der wenigstens eine Istwert eine ermittelte Ist-Länge (L2) des wenigstens einen Brennstoffzellenstapels (1) umfasst, der wenigstens eine Referenzwert eine Referenz-Länge (L1) umfasst, und der wenigstens eine Vergleichswert eine Längendifferenz (ΔL) zwischen der Ist-Länge (L2) und der Referenz-Länge (L1) umfasst, wobei der Feuchtigkeitszustand ...

Betriebsvorrichtung, Brennstoffzellensystem, Brennstoffzellenfahrzeug, Verfahren und Computerprogrammprodukt zum Betreiben eines Brennstoffzellensystems

Die vorliegende Erfindung betrifft eine Betriebsvorrichtung (1) zum Betreiben eines Brennstoffzellensystems (2), wobei das Brennstoffzellensystem (2) einen Brennstoffzellenstapel mit einer Anode, einer Kathode und einer zwischen der Anode und der Kathode angeordneten Elektrolytmembran umfasst, aufweisend ein Erfassungsmodul (3) zum Erfassen von Betriebsparametern des Brennstoffzellensystems (2), ein Ermittlungsmodul (4) zum Ermitteln von Basis- Betriebszuständen des Brennstoffzellensystems (2) auf Basis der erfassten Betriebsparameter, ein Kontrollmodul (5) zum Durchführen von verschiedenen Kontrolleingriffen zum Erzeugen eines Korrektur-Betriebszustandes ausgehend von den Basis-Betriebszuständen unter Verwendung einer Betriebsanalyse, einer THD-Analyse, einer CVM-Analyse und/oder einer Sicherheitsanalyse, und ein Priorisierungsmodul (6) zum Definieren einer Anwendungsreihenfolge für die verschiedenen Kontrolleingriffe. Ferner betrifft die Erfindung ein Brennstoffzellensystem (2) mit einer ...

Fuel cell system

Die vorliegende Erfindung betrifft ein Brennstoffzellensystem umfassend eine Brennstoffversorgungseinheit, zumindest eine Hochtemperaturbrennstoffzelle mit einer Kathode und einer Anode und einem zwischen Kathode und Anode angeordneten Elektrolyt. Die Kathode weist eine Kathodenzuleitung und die Anode eine Anodenzuleitung auf, wobei die Anode über die Anodenzuleitung mit der Brennstoffversorgungseinheit strömungsverbunden ist. Weiterhin ist in der Anodenzuleitung eine Reformierungsvorrichtung angeordnet. Ferner ist eine Anodenabgasleitung zur Ableitung zumindest von Anodenabgas aus der Anode vorgesehen. Das Brennstoffzellensystem weist einen Abgaswärmetauscher zur Kühlung von Abgas und eine Rezirkulationsfördereinrichtung zum Rückführen von Anodenabgas zu der Reformierungsvorrichtung auf. Dabei sind die Rezirkulationsfördereinrichtung und der Abgaswärmetauscher zur jeweiligen Kühlung über einen gemeinsamen Kühlkreislauf fluidkommunizierend miteinander verbunden, der einen zentralen Kühlfluidspeicher ...

Self-cooling mono-container fuel cell generators and power plants using an arrayof such generators

Verfahren zur Regelung eines Brennstoffzellenaggregates

High-power metal fuel battery integrated control system

Fuel cell system

Cold starting drive of fuel cell

Cooling system for power passenger car of fuel cell

Operation Control Method Of Fuel Cell And Operation Control Apparatus Of Fuel Cell

Circulating water cooling device and method of fuel cell test system

The invention discloses a circulating water cooling device of a fuel cell test system, which comprises an expansion tank, a first water pump and a first heat exchanger, the expansion tank is connected with the first water pump, the water outlet end of the first water pump is divided into two paths, one path passes through a fuel cell stack, and the other path is directly connected with the water outlet end of the fuel cell stack after being connected with the fuel cell stack in parallel; the two pipelines are converged and then divided into two paths, one path passes through the first heat exchanger, the other path is connected with the water outlet end of the first heat exchanger after being connected with the first heat exchanger in parallel, and the water outlet end of the first heat exchanger is connected with the water inlet end of the first water pump to enter circulation again. The invention also discloses a circulating water cooling method of the fuel cell test system. The system ...

Method for adjusting at least one stack temperature of fuel cell system and fuel cell system

The invention relates to a method (56) for adjusting at least one stack temperature of a fuel cell system (10), the fuel cell system (10) having a plurality of fuel cell stacks (12), at least a first stack temperature of a first fuel cell stack (12a) of the plurality of fuel cell stacks (12) being detected. According to the invention, at least the first fuel cell stack (12a) has a first fuel dosing device (58a) which is designed to supply the first fuel cell stack (12a) with fuel and to adjust the first stack temperature by means of the first fuel dosing by means of the first fuel dosing device (58a).

Cooling control method and device for fuel cell engine and auxiliary machine

The invention discloses a cooling control method and device for a fuel cell engine and an auxiliary engine. The method comprises the following steps: acquiring a first inlet temperature value when cooling liquid on a first cooling loop enters an electric pile of a fuel cell engine, and acquiring a second inlet temperature value when cooling liquid on a second cooling loop enters an auxiliary machine of the fuel cell engine; according to the size relation between the first inlet temperature value and the corresponding temperature threshold value and the size relation between the second inlet temperature value and the corresponding temperature threshold value, the control modes of the first temperature adjusting component and the second temperature adjusting component are determined; and the first temperature adjusting component and the second temperature adjusting component are controlled according to the control mode, so that the fuel cell engine is cooled by the cooling liquid in the first ...

Fuel cell air inlet pressurization system, control method and control device

The invention discloses a fuel cell air inlet pressurization system, a control method and a control device. The control method comprises the following steps: comparing the temperature of the fuel stack coolant with a first preset temperature and a second preset temperature; if the temperature of the fuel stack cooling liquid is smaller than the first preset temperature, the self-circulation cooling system is controlled to cool the fuel stack cooling liquid, and the low-voltage battery supplies power to the air inlet supercharging motor; if the temperature of the fuel stack cooling liquid is greater than the second preset temperature, comparing the outlet pressure of the air compressor with the first preset pressure and the second preset pressure; if the outlet pressure of the air compressor is smaller than the first preset pressure, the cooling pressurization system is controlled to cool the fuel stack cooling liquid, and power is provided for the air compressor; and if the outlet pressure ...

연료전지 차량용 냉각 시스템

... 본 발명은 연료전지 차량용 냉각 시스템에 관한 것으로서, 더욱 상세하게 하나의 공냉식 열교환기를 이용하여 냉각시킨 제1열교환매체로 연료전지 스택, 전장부품 및 수냉식 컨덴서를 각각 냉각시킬 수 있도록 분기시키며, 상기 전장부품 및 수냉식 컨덴서와 연결되는 냉각루프로 분기된 제1열교환매체가 별도로 형성된 판형 열교환기를 이용하여 상기 전장부품 및 수냉식 컨덴서를 냉각시키는 제2열교환매체와 열교환되도록 함으로써, 연료전지 차량용 냉각 시스템에 필요한 부품수를 축소하고, 이에 따른 전기에너지 손실을 최소화할 수 있으며, 차체 내부 공간활용도를 향상시킬 수 있는 연료전지 차량용 냉각 시스템을 제공하는 것이다.

FUEL CELL SYSTEM

A cathode gas cooling apparatus (50) includes a first internal flow path (63) through which cathode gas flows, a second internal flow path (66) through which water discharged from a fuel cell (10) is supplied, and a heat exchanger (60) for cooling the cathode gas flowing through the first internal flow path (63) by latent heat of vaporization of water flowing through the second internal flow path (66). The first internal flow path (63) and the second internal flow path (66) are formed become independent flow paths in the heat exchanger (60), so that steam generated in the second internal flow path (66) by the heat exchange with the cathode gas flowing through the first internal flow path is not introduced into the first inner flow path (63). COPYRIGHT KIPO 2018 ...

OPERATION METHOD OF REDOX FLOW BATTERY

In this operation method of a redox flow battery 200 comprising a carbon nanotube-containing electrode layer 2 on an electrode, the temperature of the electrolyte fed to the electrode layer 2, where the electrode reaction is carried out, is set to 40°C-90°C, and charging and discharging is performed. By this means, it is possible to improve output performance (cell resistance) even without controlling the temperature of the electrolyte during operation of the redox flow battery to a low temperature.

FUEL CELL VEHICLE

Provided is a fuel cell vehicle with which reaction product water generated by fuel cell power generation can be effectively utilized. A fuel cell vehicle 100 comprises: an electric motor 110; a secondary battery 111; a fuel cell 113; a water storage tank 116; a product water supply mechanism 120; and a control device 130. The electric motor 110 drives the fuel cell vehicle 100. The secondary battery 111 charges and discharges electricity generated by the fuel cell 113. The water storage tank 116 stores reaction product water that is produced during power generation by the fuel cell 113. The product water supply mechanism 120 guides and injects the reaction product water in the water storage tank 116 into brake devices 105a-105d and a retarder 108. The control device 130 controls the operation of the product water supply mechanism 120 when the temperature of the brake devices 105a-105d and the retarder 108 is equal to or greater than a predetermined temperature, so as to inject the reaction ...

REGULATED GAS CONDITIONING PROCESS FOR A REACTION GAS OF A FUEL CELL

The aim of the invention is to allow a precise and quick regulation of the influencing variables in the operation of a fuel cell. This is achieved in that a regulator (R) is used for the regulation, said regulator being designed on the basis of a model of the gas conditioning unit (3) in the form of a coupled nonlinear multivariable system in that the coupled nonlinear multivariable system is decoupled and linearized using Lie derivatives, and the regulator (R) is designed for the decoupled linear multivariable system. The regulator (R) calculates the control variables (uG, uS, uN, Q) for at least three present actuators of the influencing variables of the gas conditioning unit (3) at each sampling time of the regulation using specified target variables (yj,dmd), and at least the three actuators of the gas conditioning unit (3) adjust the calculated control variables (uG, uS, uN, Q) at each sampling time of the regulation.

FUEL CELL

The purpose of the present invention is to provide a simple, compact fuel cell configured so as to have sufficiently large cell capacity and energy density. This fuel cell 10 has a cylindrical electrode assembly 12, an anode fuel substance body 14, a heater 16, and a sealed container 20. The electrode assembly 12 comprises a cylindrical, airtight solid electrolyte 12a, a cathode 12b, and an anode 12c. The solid electrolyte 12a conducts oxygen ions. The cathode 12b is formed on the inside surface of the solid electrolyte 12a, and reduces oxygen in air to oxygen ions during discharge. The anode 12c is formed on the outside surface of the solid electrolyte 12a, and oxidizes hydrogen gas to water vapor during discharge. The anode fuel substance body 14 reacts with water vapor to generate hydrogen gas, and becomes an oxide. The heater 16 is arranged on the outside of the sealed container 20 and/or the inside of the electrode composite 12. The sealed container 20 is arranged on the outside of ...

FUEL CELL MODULE AND FUEL CELL DEVICE

The present disclosure relates to: a fuel cell module which enables the achievement of improved power generation efficiency and stable operation for a long period of time; and a fuel cell device. According to the present disclosure, a module 17 is provided with a supporting member 330 that is arranged within a lower thermal insulation material 33b. The supporting member 330 is configured to be capable of supporting a cell stack device 1 within the lower thermal insulation material 33b. Since the supporting member 330 is arranged within the lower thermal insulation material 33b, the supporting member 330 supports the cell stack device 1 in place of the lower thermal insulation material 33b in cases where the lower thermal insulation material 33b is deformed.

ENERGY REGENERATION IN FUEL CELL-POWERED DATACENTER WITH THERMOELECTRIC GENERATORS

A method of controlling energy in a datacenter includes receiving a fuel cell operating percentage of an operating capacity of the fuel cell, receiving a fuel cell exhaust temperature, receiving a hot aisle air temperature from a hot aisle of a server computer, determining a temperature delta between the hot aisle air temperature and the fuel cell exhaust temperature, and then allocating virtual machine placements to change a server user percentage relative to a server user capacity percentage target value to optimize the fuel cell operating percentage relative to the fuel cell efficiency target value, the temperature delta relative to the thermoelectric generator efficiency target value, and the server user percentage relative to the server user capacity percentage target value.

METHOD FOR OPERATING FUEL CELL

Provided is a method for operating a fuel cell whereby a polymer electrolyte membrane can be sufficiently humidified and superior power generation performance can be achieved, even in high-temperature conditions. The present invention is a method for operating a fuel cell provided with a membrane electrode assembly comprising an electrolyte membrane, a catalyst layer, and a gas diffusion layer, the method being characterized by: including a step in which the operating temperature of the fuel cell is set to at least 100°C; the relative humidity of a feedstock gas fed into the fuel cell in the aforementioned step being at least 70%; and the back pressure upon the feedstock gas being at least 330 kPa.

FUEL CELL AND FUEL CELL CONTROL METHOD

A fuel cell (10) comprising an upper plate (20a) and a lower plate (20b), a stack of energy cells, the stack being disposed between the upper plate and the lower plate, the stack being divided into a plurality of energy cell stages (22), a plurality of collectors (14) separating each energy cell stage, three inlet shafts (31) extending from the lower plate to the upper plate, over the entire height of the stack of energy cells, the three inlet shafts being configured to respectively supply the energy cells with heat transfer fluid, with oxidizing fluid and with combustible fluid, and a mobile piston (12) is disposed in each of the inlet shafts, each piston being configured such that its position in the inlet shaft selectively opens one or more fluid ducts of one or more energy cell stages, and wherein each piston is controlled independently of the other pistons. Method for controlling a fuel cell, comprising a step of partial preheating (E1) and a second of gradual preheating (E2).

Fuel cell vehicle

A fuel cell vehicle according to the present disclosure includes, in a front room: a fuel cell stack fixed to an upper part of a stack frame; a high voltage element fixed to an upper part of the fuel cell stack; and an ion exchanger that is arranged in front of the fuel cell stack and the high voltage element. The stack frame is provided with an inclined part, and when the ion exchanger is displaced rearward at the time of a frontal crash of the fuel cell vehicle, a rear part in a lower end of the ion exchanger is slid along an inclined surface of the inclined part and the ion exchanger is displaced in a diagonally upward direction, whereby the cap part of the ion exchanger is positioned on the upper side in the vertical direction with respect to the high voltage element.

Fuel cell system

A fuel cell system includes a fuel cell module, auxiliary equipment, a power converter, and a casing containing the fuel cell module, the auxiliary equipment, and the power converter. The casing has a plurality of surfaces including one detachable maintenance surface. Only the maintenance surface has an air intake port for taking an oxygen-containing gas into the casing, an air exhaust port for discharging an exhaust gas discharged from the fuel cell module, to the outside of the casing, and a ventilation inlet port and a ventilation outlet port for ventilation of an inside of the casing by air.

Coolant for cooling systems in electric vehicles having fuel cells and/or batteries containing azole derivatives and additional corrosion protectants

The present invention relates to coolants for cooling systems in electric vehicles having fuel cells and/or batteries, preferably for motor vehicles, particularly preferably for passenger cars and commercial vehicles (known as light and heavy duty vehicles), based on alkylene glycols or derivatives thereof, which comprise additional corrosion inhibitors for improved corrosion protection in addition to specific azole derivatives.

Fuel cell system and method for warming up fuel cell system

A fuel cell system includes a fuel cell configured to be supplied with fuel and air to generate electricity, a reformer configured to reform the fuel to be supplied to the fuel cell, a heat source device configured to heat an off-gas discharged from the fuel cell to produce a heating gas and configured to heat the reformer, a fuel cell heating device configured to heat the air to be supplied to the fuel cell using the heating gas, a fuel cell temperature acquisition unit configured to acquire a temperature of the fuel cell, and a reformer temperature acquisition unit configured to acquire a temperature of the reformer. The fuel cell system includes a controller configured to, in a warm-up operation to perform a warm-up of the reformer and a warm-up of the fuel cell, control at least one of the heat source device and the fuel cell heating device based on the temperature of the reformer and the temperature of the fuel cell to adjust at least one of a heating amount of the off-gas and a heating ...

Gas analyzer with fuel cell

The invention relates to gas analyzers, especially mobile ion mobility spectrometers or mass spectrometers which are operated at atmospheric pressure to detect dangerous substances. The invention uses a fuel cell to generate the electric operating power of the gas analyzer, and the waste heat from the fuel cell is used to regulate the temperature of modules of the gas analyzer.

Flow battery control method, flow battery control system and flow battery

A flow battery has a control system and a control method to control the operation of the flow battery. The control method includes disposing an SOC detection device respectively at a positive electrolyte outlet and a negative electrolyte outlet of a cell stack; obtaining, by the SOC detection devices, SOCs at the electrolyte outlets of the cell stack under an initial state of the flow battery; at every preset time, acquiring the volume of electrolyte in the positive electrolyte storage tank, the volume of electrolyte in the negative electrolyte storage tank, the volume of the electrolyte flowing into the positive electrolyte storage tank, and the volume of the electrolyte flowing into the negative electrolyte storage tank, and meanwhile, obtaining, by the SOC detection devices, SOCs at the electrolyte outlets of the cell stack; and obtaining SOC of the flow battery.

POWER SUPPLY SYSTEM AND CONTROL METHOD THEREFOR

An electric power supply system 100 comprises a battery 10 that generates heat by discharging an electric power, and a fuel cell system 20 that generates the electric power by fuel cells 21. The electric power supply system 100 supplies power to an electric load. The electric power supply system 100 determines whether or not a temperature of the battery 10 is equal to or less than a predetermined temperature, and when the temperature of the battery is equal to or less than the predetermined temperature, the electric power supply system 100 discharges the battery 10 to the fuel cell system 20.

FUEL CELL SYSTEM INCLUDING INDUCTIVE HEATING ELEMENT AND METHOD OF USING SAME

A fuel cell system and method of operating the same, the system including: a fuel cell stack and a reaction zone configured to receive a fuel/air mixture; an electromagnetic induction glow plug configured to heat the fuel/air mixture; and an alternating current (AC) generator configured to provide an AC voltage to the glow plug. The glow plug includes a housing extending outside of the hotbox, a heating element disposed in the housing, and a coil coiled around the housing, electrically connected to the AC generator, and configured to inductively heat the heating element.

FUEL CELL COGENERATION SYSTEM, METHOD OF STARTING OPERATION OF THE FUEL CELL COGENERATION SYSTEM, AND METHOD OF OPERATING THE FUEL CELL COGENERATION SYSTEM

A fuel cell cogeneration system includes a fuel cell module, a heat exchanger, a hot water tank, a circulating water channel, and an oxygen-containing gas supply channel. A circulating water heater for heating water is provided on the circulating water channel. Part of the oxygen-containing gas supply channel is provided in the circulating water heater to thereby allow air flowing through the oxygen-containing gas supply channel to be heated by receiving heat from the circulating water heater.

EVAPORATIVE COOLING TYPE FUEL CELL SYSTEM AND COOLING CONTROL METHOD FOR THE SAME

An evaporative cooling type fuel cell system and a cooling control method for the same are provided. The fuel cell system includes a stack that generates electric power by reacting hydrogen as fuel with air as an oxidant. The method includes adjusting an operation pressure of the stack based on a current operation temperature of the stack and adjusting the amount of water supplied to the stack from a water reservoir based on the current operation temperature. The water is supplied to a cathode of the stack. Thus, a compact-simplified fuel cell system is provided, thereby reducing manufacturing costs and weight.

Combined cooling and water braking system for a vehicle, and a method for cooling a propulsion device of a vehicle and water braking a pair of wheels of a vehicle

A combined cooling and water braking system for a vehicle comprises a first water recirculation loop having a first heat exchanger configured to cool water flowing in the first water recirculation loop, the first water recirculation loop comprising a water conduit for transporting heat away from a propulsion device configured to generate a propulsion power for the vehicle. A second water recirculation loop having a second heat exchanger is configured to cool water flowing in the second water recirculation loop. A retarder is configured to be coupled to a pair of wheels of the vehicle. The second water recirculation loop may be selectively used for cooling the propulsion device and for providing water to the retarder for water braking. There is also provided a method for cooling a propulsion device of a vehicle and water braking a pair of wheels of a vehicle.

Method for controlling thermal management systems of power plant

A power plant thermal-management-system control method for controlling thermal management systems in PMCs is provided. The thermal management systems are operated based on coolant temperatures of the PMCs of a power plant of a fuel cell vehicle to prevent the temperatures of the PMCs from deviating from a reference range, which in turn prevents degradation of fuel cells.

CATALYTIC HEATERS FOR EVAPORATIVELY COOLED FUEL CELL SYSTEMS

Disclosed herein are aspects of fuel cell systems (10) and methods having a fuel cell assembly (20); a coolant module (30) configured to provide coolant to the fuel cell assembly, the coolant module comprising a coolant storage (32) tank fluidly connected to the fuel cell assembly (20) and a coolant tank heater comprising one or more catalytic heating elements (55) arranged proximate to the coolant storage tank (32) to heat the coolant, wherein the one or more catalytic heating elements (55) includes a catalyst material that combusts hydrogen and ignites spontaneously.

Coolant storage tank

A coolant storage tank (1) for storing coolant in a fuel cell system (2), the coolant storage tank comprising a plurality of individually controllable heater elements (7, 8a, 8b). A coolant storage tank comprising a first heater element (7) located at a base of the coolant storage tank and a second heater element (8a) is also disclosed. A coolant storage tank comprising a first coolant storage compartment (50) in fluid communication with a second coolant storage compartment (51), the first coolant storage compartment including at least a first heater element (54) and wherein the second coolant storage compartment is unheated is also disclosed. A method of melting frozen coolant in a coolant storage tank is also disclosed.

NOZZLE FOR COMBUSTION AND REFORMING REACTION, COMBUSTOR, AND FUEL CELL SYSTEM

The disclosure provides a nozzle for combustion and reforming reaction including a fuel pipe, a reformer, an activation pipe, an activation catalyst, and a reformation catalyst. The fuel pipe includes an annular wall and an end wall connected to an end of the annular wall. The fuel pipe has at least one vent hole penetrating through the annular wall and at least one outlet penetrating through the end wall. The reformer is disposed in the fuel pipe. The activation pipe is disposed in the fuel pipe and disposed through the reformer. A distance between the activation pipe and the outlet is larger than a distance between the vent hole and the outlet. The activation catalyst is arranged in the activation pipe. The reformation catalyst is arranged in the reformer and located outside the activation pipe. The disclosure also provides a combustor and a fuel cell system having the nozzle.

Fuel cell system

ELECTROCHEMICAL CELL AND METHOD FOR TUNING AN ELECTROCHEMICAL CELL STACK

REGULATED GAS CONDITIONING PROCESS FOR A REACTION GAS OF A FUEL CELL

COOLING SYSTEM AND METHOD FOR USE WITH A FUEL CELL

A system is provided comprising a fuel cell and a cooling system. The cooling system comprises a first heat exchanger fluidly connected to a cathode outlet passage of the fuel cell. The first heat exchanger is configured to condense at least a portion of a fluid passing through the cathode outlet passage of the fuel cell into liquid water. The cooling system also comprises a second heat exchanger fluidly connected to an outlet passage of the first heat exchanger and a cathode inlet passage of the fuel cell. The second heat exchanger is configured to cool a fluid passing into the cathode inlet passage of the fuel cell.

Fuel cell assembly and associated method of operation

Regulated gas conditioning for a reaction gas of a fuel cell

Um die Einflussgrößen des Betriebs einer Brennstoffzelle genau und schnell regeln zu können ist vorgesehen, dass für die Regelung ein Regler (R) verwendet wird, der auf Basis eines Modells der Gaskonditioniereinheit (3) in Form eines gekoppelten, nichtlinearen Mehrgrößensystems entworfen wurde, indem das gekoppelte, nichtlineare Mehrgrößensystem mittels Lie-Ableitungen entkoppelt und linearisiert wurde und der Regler (R) für das entkoppelte, lineare Mehrgrößensystem entworfen wurde, wobei der Regler (R) zu jedem Abtastzeitpunkt der Regelung anhand vorgegebener Sollgrößen (yj,dmd) die Stellgrößen (uG, uS, uN, Q ) für zumindest drei vorhandene Aktuatoren der Einflussgrößen der Gaskonditioniereinheit (3) berechnet und zumindest diese drei Aktuatoren der Gaskonditioniereinheit (3) die berechneten Stellgrößen (uG, uS, uN, Q ) zu jeden Abtastzeitpunkt der Regelung einstellen.

Exhaust gas after-treatment device with reformer and burner for a system of SOFC

Die vorliegende Erfindung betrifft eine Abgasnachbehandlungsvorrich- tung (100a; 100b) für ein Brennstoffzellensystem (1000), das einen Brennstoffzellen- stapel (200) mit einem Anodenabschnitt (210) und einem Kathodenabschnitt (220) aufweist, mit einem Reformer (20) zum Zuführen von reformiertem Anodenzuführgas zum Anodenabschnitt (210), einem Abgasbrenner (30) zum Verbrennen von Brenn- gas vom Kathodenabschnitt (220), wobei der Abgasbrenner (30) ringförmig um den Reformer (20) herum angeordnet ist, und einem Brenngas-Leitungsabschnitt (50) zum Zuführen des Kathodenabgases zum Abgasbrenner (30), wobei der Abgasbren- ner (30) einen Abgasbrenner-Oxidationskatalysator (31) zum Erhitzen von Brenngas, das vom Kathodenabschnitt zum Abgasbrenner (30) geleitet wird, aufweist und im Brenngas-Leitungsabschnitt (50) ein Heizmittel (40) zum Verbrennen des Brenngases angeordnet ist. Ferner betrifft die Erfindung ein Brennstoffzellensystem (1000) mit der erfindungsgemäßen Abgasnachbehandlungsvorrichtung ...

Fuel cell system

Die vorliegende Erfindung betrifft ein Brennstoffzellensystem umfassend eine Brennstoffversorgungseinheit, zumindest eine Hochtemperaturbrennstoffzelle mit einer Kathode und einer Anode und einem zwischen Kathode und Anode angeordneten Elektrolyt. Die Kathode weist eine Kathodenzuleitung und die Anode eine Anodenzuleitung auf, wobei die Anode über die Anodenzuleitung mit der Brennstoffversorgungseinheit strömungsverbunden ist. Weiterhin ist in der Anodenzuleitung eine Reformierungsvorrichtung angeordnet. Ferner ist eine Anodenabgasleitung zur Ableitung zumindest von Anodenabgas aus der Anode vorgesehen. Das Brennstoffzellensystem weist einen Abgaswärmetauscher zur Kühlung von Abgas und eine Rezirkulationsfördereinrichtung zum Rückführen von Anodenabgas zu der Reformierungsvorrichtung auf. Dabei sind die Rezirkulationsfördereinrichtung und der Abgaswärmetauscher zur jeweiligen Kühlung über einen gemeinsamen Kühlkreislauf fluidkommunizierend miteinander verbunden, der einen zentralen Kühlfluidspeicher ...

Method and apparatus for determining a moisture state of an electrolyte membrane in a fuel cell system

Die vorliegende Erfindung betrifft ein Verfahren zum Ermitteln eines Feuchtigkeitszustandes wenigstens einer Elektrolytmembran (2, 2a) in wenigstens einem Brennstoffzellenstapel (1) in einem Brennstoffzellensystem (30), aufweisend die Schritte: Ermitteln von wenigstens einem stapeldimensionsabhängigen Istwert, Vergleichen des wenigstens einen Istwertes mit wenigstens einem stapeldimensionsabhängigen Referenzwert, Ermitteln wenigstens eines stapeldimensionsabhängigen Vergleichswertes zwischen dem Istwert und dem Referenzwert, und Ermitteln des Feuchtigkeitszustandes der wenigstens einen Elektrolytmembran (2, 2a) anhand des ermittelten Vergleichswertes. Ferner betrifft die Erfindung eine Feuchtigkeitsermittlungsvorrichtung (20a; 20b) zum Ermitteln eines Feuchtigkeitszustandes wenigstens einer Elektrolytmembran (2, 2a) gemäß einem erfindungsgemäßen Verfahrens sowie ein Brennstoffzellensystem (30) mit einer erfindungsgemäßen Feuchtigkeitsermittlungsvorrichtung (20a; 20b).

Regulated gas conditioning for a reaction gas of a fuel cell

Um die Einflussgrößen des Betriebs einer Brennstoffzelle genau und schnell regeln zu können ist vorgesehen, dass für die Regelung ein Regler (R) verwendet wird, der auf Basis eines Modells der Gaskonditioniereinheit (3) in Form eines gekoppelten, nichtlinearen Mehrgrößensystems entworfen wurde, indem das gekoppelte, nichtlineare Mehrgrößensystem mittels Lie-Ableitungen entkoppelt und linearisiert wurde und der Regler (R) für das entkoppelte, lineare Mehrgrößensystem entworfen wurde, wobei der Regler (R) zu jedem Abtastzeitpunkt der Regelung anhand vorgegebener Sollgrößen (yj,dmd) die Stellgrößen (uG, uS, uN, Q) für zumindest drei vorhandene Aktuatoren der Einflussgrößen der Gaskonditioniereinheit (3) berechnet und zumindest diese drei Aktuatoren der Gaskonditioniereinheit (3) die berechneten Stellgrößen (uG, uS, uN, Q ) zu jeden Abtastzeitpunkt der Regelung einstellen.

Betriebsvorrichtung, Brennstoffzellensystem, Kraftfahrzeug und Verfahren zum Betreiben eines Brennstoffzellensystems

Die vorliegende Erfindung betrifft eine Betriebsvorrichtung (1) zum Betreiben einer Brennstoffzelle (2), aufweisend ein Spannungsüberwachungsmodul (3) zum Überwachen einer Zellspannung der Brennstoffzelle (2) und ein Kontrollmodul (4) zum Kontrollieren des Betriebs der Brennstoffzelle (2). Die Betriebsvorrichtung (1) weist ein Speichermodul (5) zum Speichern einer Signalreaktionsmatrix sowie ein Vergleichsmodul (6) zum Vergleichen eines Betriebsmodus der Brennstoffzelle (2) und der überwachten Zellspannung mit der Signalreaktionsmatrix zum Ermitteln mindestens einer spezifischen Gegenmaßnahme zum Verbessern eines Betriebszustands der Brennstoffzelle (2) aus der Signalreaktionsmatrix auf. Das Kontrollmodul (4) weist Reaktionsmittel auf für einen Kontrolleingriff in den Betrieb der Brennstoffzelle (2) auf Basis der mindestens einen ermittelten spezifischen Gegenmaßnahme. Ferner betrifft die Erfindung ein Brennstoffzellensystem (10) zur Bereitstellung elektrischer Energie, ein Kraftfahrzeug ...

Brenner für ein Brennstoffzellensystem

Die Erfindung betrifft einen Brenner (1) ein Brennstoffzellensystem (100), insbesondere ein SOFC-System, wobei der Brenner (1) als Startbrenner und/oder Nachbrenner ausgebildet und angeordnet ist und zwei nacheinander angeordnete Reaktionskammern (2, 3) umfasst, wobei in Strömungsrichtung eine zweite Reaktionskammer (3) mittelbar auf eine erste Reaktionskammer (2) folgt, wobei die Reaktionskammern (2, 3) jeweils ein katalytisches Material aufweisen, wobei eine Verdampfungseinrichtung (4) vorgesehen ist, wobei die Verdampfungseinrichtung (4) zwischen den Reaktionskammern (2, 3) angeordnet ist, wobei ein weiterer Verdampfer (6) zum Verdampfen von Brennstoff vorgesehen ist, wobei der weitere Verdampfer (6) stromaufwärts der Verdampfungseinrichtung (4) angeordnet ist. Weiter betrifft die Erfindung ein Brennstoffzellensystem (100) mit einem solchen Brenner (1). Darüber hinaus betrifft die Erfindung ein Verfahren zum Betreiben eines Brennstoffzellensystems (100) mit einem Brenner (1).

Electrolytes for iron flow battery

A method of operating an iron redox flow battery system may comprise fluidly coupling a plating electrode of an iron redox flow battery cell to a plating electrolyte; fluidly coupling a redox electrode of the iron redox flow battery cell to a redox electrolyte; fluidly coupling a ductile plating additive to one or both of the plating electrolyte and the redox electrolyte; and increasing an amount of the ductile plating additive to the plating electrolyte in response to an increase in the plating stress at the plating electrode. In this way, ductile Fe can be plated on the negative electrode, and the performance, reliability and efficiency of the iron redox flow battery can be maintained. In addition, iron can be more rapidly produced and plated at the plating electrode, thereby achieving a higher charging rate for all iron flow batteries.

FUEL CELL APPARATUS

Method for improving operation stability of reversible solid oxide battery

Hydrogen fuel cell with overheating prevention

Chlorine magnesium fuel cell electrolyte regeneration system and method

Fuel cell system and vehicle

Starting device and starting system of fuel cell

Hot dormancy and hot start methods for solid oxide fuel cells

Humidification device and humidification method for fuel cell test system

Fuel cell system

Quick-start solid oxide fuel cell system based on phase change heat storage

The invention discloses a quick-start solid oxide fuel cell system based on phase change heat storage. The quick-start solid oxide fuel cell system comprises a phase change heat storage unit, a preheating unit, a reformer and an electric pile, the output end of the phase change heat storage unit is respectively connected with the preheating unit and the electric pile pipeline; the output end of the preheating unit is respectively connected with the phase change heat storage unit and the reformer through pipelines to form a heat supply circulating pipeline; the output end of the reformer is connected with an electric pile pipeline; the phase change heat storage unit supplies heat to the electric pile and the preheating unit, so that the preheating unit can quickly reach the starting temperature, and the starting speed is increased.

Fuel cell system using heat in hydrogen generator and method for controlling the fuel cell system

Reformer for Power Generation and Operating Method thereof

FUEL CELL SYSTEM AND CONTROLLING METHOD THEREOF

The present invention relates to a fuel cell system which comprises: a fuel cell stack including a cathode supplied with air, a hydrogen electrode supplied with hydrogen, and a stack cooling path where stack cooling water passes through; and an air temperature regulation part regulating a temperature of air using an electronic component valve which controls introduction of electronic component cooling water for reducing the temperature of the air, and a stack valve controlling introduction of the stack cooling water discharged from the stack cooling path. COPYRIGHT KIPO 2017 (11) Hydrogen electrode (12) Cathode (13) Stack cooling path (30) Cooling device (31) Cooling water pump (40) Air temperature regulation part (41) Air temperature control part (42) Humidifier (50) Air supply unit (51) Air pump (60) Air (80) Hydrogen (A1,A2) Cooling ...

VEHICLE AND METHOD OF CONTROLLING SAME

The present invention relates to a vehicle including a fuel cell and a method of controlling the same, and more particularly, to a technology for controlling the temperature of a fuel stack by generating a substitute value based on a measured temperature when it is determined that a sensor or a system is abnormal by using the temperature of a fuel cell by using a plurality of sensors. The present invention includes: a fuel cell; a fuel cell stack including an air electrode and a fuel electrode; a sensor unit for measuring the temperature of the fuel cell using a plurality of sensors; and a control unit for controlling the temperature of the fuel cell stack based on the measured values, wherein, when the measured values are in a first temperature range, the control unit generates a substitute value based on the measured temperature and controls the temperature of the fuel cell stack based on the substitute value. According to the present invention, it is possible to generate a substitute ...

CONTINUOUS HYDROGEN GENERATION APPARATUS AND HYDROGEN GENERATION METHOD

The purpose of the present invention is to provide: a hydrogen generation apparatus which can be driven continuously for a long time; and others. The hydrogen generation apparatus (10) is equipped with: a first pipe (661) through which water can be supplied to the inside of a reaction vessel (21); a second pipe (662) through which a liquid suspension containing a powder of a hydrogen-generating material dispersed in water can be supplied to the inside of the reaction vessel (21); a third pipe (663) which is connected to an upper part of the reaction vessel (21) and through which hydrogen is allowed to flow out, wherein the hydrogen is generated by the reaction of water supplied through the first pipe (661) and stored in the reaction vessel (21) with the hydrogen-generating material contained in the liquid suspension supplied through the second pipe (662); and a drainage pipe (666) which is connected to a lower part of the reaction vessel (21) and through which a reactive product is allowed ...

HYDROGEN STORAGE UNIT AND FUEL CELL SYSTEM

Provided are: a hydrogen storage unit (7) which is capable of heating a storage container that contains a hydrogen storage alloy in a highly heat efficient state; and a fuel cell system (300) which is provided with this hydrogen storage unit (7). A cell main body (100) of the fuel cell (300) is provided with: a fuel cell stack (10) which generates electric power by having hydrogen and oxygen react with each other; and a stack cooling channel (4) which cools the fuel cell stack (10) by means of circulation of a heat medium. The hydrogen storage unit (7) in a hydrogen supply part (200) of the fuel cell (300) is provided with: a case (70); a plurality of tanks (20) that are housed in the case and contain a hydrogen storage alloy; and a temperature control member (1) which heats or cools the tanks (20) by having a heat medium circulate inside.

FUEL BATTERY AND CONTROL METHOD THEREFOR

Disclosed by the present invention are a fuel battery and a control method therefor, the fuel battery comprising a battery reactor, a cooling loop for cooling the battery reactor, and a fuel battery system controller for controlling the battery reactor and the cooling loop to operate, and the cooling loop comprising a cooling pipeline that runs through the battery reactor, a water pump, a radiator, a heater, and a thermostatic three-way valve; the fuel battery is characterized in that: a coolant replenishing loop is connected between a first water outlet of the cooling pipeline and a first water inlet of the cooling pipeline, a first temperature sensor is provided at the first water inlet of the cooling pipeline, a second temperature sensor is provided at the first water outlet of the cooling pipeline, and according to coolant temperature data detected by the first temperature sensor and the second temperature sensor, the fuel battery system controller controls the thermostatic three-way ...

ACTIVE FAULT-TOLERANT TEMPERATURE CONTROL METHOD FOR PROTON EXCHANGE MEMBRANE FUEL CELL SYSTEM

An active fault-tolerant temperature control method for a proton exchange membrane fuel cell system is disclosed. Firstly, a model of a proton exchange membrane fuel cell temperature control system is established, and a system structure matrix is established according to the model by structural analysis. The system structure matrix is decomposed by using a Dulmage-Mendelsohn method, a redundant part of the model is obtained, and a system residual is constructed to reflect faults of the temperature control system. On the basis of fault identification, sliding-mode-based active fault-tolerant control is designed to accurately control an outlet temperature of a stack. The new method solves the problem of sensor failure of a temperature control model of the proton exchange membrane fuel cell system during operation, and applies model-based fault-tolerant control to temperature control, so that the reliability and durability of the fuel cell system can be effectively improved.

Fuel cell system with anode degradation reduction control

A fuel cell system comprising: a fuel cell; a combustor configured to combust a fuel and an oxidizing gas to supply a combustion gas to a cathode inlet of the fuel cell; a combustion fuel supply device configured to supply a fuel to the combustor; a combustion oxidizing gas supply device configured to supply an oxidizing gas to the combustor; an anode-discharged-gas discharge passage configured to discharge an anode discharged gas from an anode outlet of the fuel cell; a cathode-discharged-gas discharge passage configured to discharge a cathode discharged gas from a cathode outlet of the fuel cell; and a controller configured to control a supply of the fuel to the combustor by the combustion fuel supply device and a supply of the oxidizing gas to the combustor by the combustion oxidizing gas supply device, wherein the controller includes a post-stop-request combustor-supply control unit configured to execute the supply of the fuel and the supply of the oxidizing gas to the combustor after ...

FLOW BATTERY REGULATION AND CONTROL METHOD, REGULATION AND CONTROL SYSTEM THEREOF, AND FLOW BATTERY

A flow battery has a control system and a control method to control the operation of the flow battery. The control method includes disposing an SOC detection device respectively at a positive electrolyte outlet and a negative electrolyte outlet of a cell stack; obtaining, by the SOC detection devices, SOCs at the electrolyte outlets of the cell stack under an initial state of the flow battery; at every preset time, acquiring the volume of electrolyte in the positive electrolyte storage tank, the volume of electrolyte in the negative electrolyte storage tank, the volume of the electrolyte flowing into the positive electrolyte storage tank, and the volume of the electrolyte flowing into the negative electrolyte storage tank, and meanwhile, obtaining, by the SOC detection devices, SOCs at the electrolyte outlets of the cell stack; and obtaining SOC of the flow battery.

Fuel cell vehicle and control method thereof

A control method of a fuel cell vehicle comprises estimating a load applied to an own vehicle that is the fuel cell vehicle and that runs on an estimated route by using current traffic flow information or the like in addition to the estimated route; determining whether an overload area is present on the estimated route by using the estimated load; and when it is determined that the overload area is present on the estimated route, performing an increasing process of increasing a cooling power of a cooling system to be greater than a cooling power set in an ordinary control mode before the own vehicle reaches the overload area.

Wet state control device for fuel cell

A wet state control device for fuel cell includes a priority control unit for preferentially controlling either one of a pressure and a flow rate of cathode gas when a wet state of a fuel cell is adjusted, a water temperature control unit for controlling a temperature of cooling water when the wet state of the fuel cell is not completely adjustable by a control of the priority control unit, and a complementary control unit for controlling the other of the pressure and the flow rate of the cathode gas to complement a response delay of the water temperature control unit.

INTEGRATED RECIRCULATING FUEL CELL SYSTEM

A fuel cell containment system wherein fan exhaust is ducted in a manner that directs the flow of air into or from hydrogen storage system or other fuel cell component housing, creating an active ventilation of the storage system. During standby operations, cooling air supporting the control electronics may be ducted into the hydrogen storage system likewise creating an active ventilation of the hydrogen storage system.

HIGH EFFICIENCY FUEL CELL SYSTEM WITH INTERMEDIATE CO2 RECOVERY SYSTEM

A high efficiency fuel cell system includes a topping fuel cell assembly including a topping cathode portion and a topping anode portion; a carbon dioxide separation unit that receives at least a portion of an anode exhaust stream output from the topping anode portion and separates the portion of the anode exhaust stream into a carbon dioxide stream and a carbon dioxide depleted stream; and a bottoming fuel cell assembly including a bottoming cathode portion and a bottoming anode portion. The bottoming anode portion receives the carbon dioxide depleted stream output from the carbon dioxide separation unit. The carbon dioxide depleted stream being richer in hydrogen than the portion of the anode exhaust stream output from the topping anode portion.

Fuel cell system and a method and apparatus for starting a fuel cell stack

The invention concerns fuel cell systems and methods for converting chemical energy of a fuel containing hydrogen into electricity. According to the invention, a fuel cell stack is provided having at least one anode and one cathode separated by a proton-exchange membrane. A fuel transport circuit feeds fuel to the fuel cell stack, and a temperature control system is adapted to control the temperature of the fuel cell stack by circulating a coolant medium through said fuel cell stack. The temperature control system includes a pump for circulating the coolant medium, a heater unit connected to a coolant transport circuit for heating the coolant with a PTC heater, a heat radiation unit connected to the coolant transport circuit for removing excess heat, and a temperature sensor. In response to a startup condition of the fuel cell stack, a controller is adapted to read a temperature signal indicative of the fuel cell stack temperature, to bypass the heat radiation unit, if the fuel cell stack ...

FUEL CELL SYSTEM

An ECU of a fuel cell system supplies cathode gas by rotating an air pump at a low-load rotational speed and performs a low-load power generation in a fuel cell stack, while a moving body is traveling. When the fuel cell stack generates power while the moving body is stopped, the ECU increases the supply amount of the cathode gas by rotating the air pump at a during-stoppage-of-traveling rotational speed which is greater than the low-load rotational speed.

Fuel cell system

To provide a fuel cell system configured to reduce the drying of the inside of the fuel cell stack and increase the power generation performance of the fuel cell stack by reducing a circulation gas flow rate during high temperature operation. Disclosed is a fuel cell system comprising: a fuel cell stack, an ejector, a first injector which supplies fuel gas to the ejector, a second injector which has a smaller fuel gas injection amount than the first injector and which supplies the fuel gas to the ejector, a third injector which supplies the fuel gas to fuel electrodes of the fuel cell stack, a fuel gas supplier, a first supply flow path, a second supply flow path which enables the supply of the fuel gas from the third injector to the fuel electrodes of the fuel cell stack, a circulation flow path, a temperature detector, and a controller.

METHOD AND SYSTEM FOR PRODUCING HYDROGEN, ELECTRICITY AND CO-PRODUCTION

A BRAKING SYSTEM, A FUEL CELL SYSTEM, AND A VEHICLE COMPRISING A FUEL CELL SYSTEM

The present invention relates to a braking system (100) for a vehicle at least partially propelled by an electric traction motor, the braking system comprising an electric machine (102) electrically connected to an electric source (104); an air flow producing unit (106) mechanically connected to, and operated by, the electric machine (102); and an electrical brake resistor arrangement (108) positioned in fluid communication between the air flow producing unit (106) and an ambient environment, the electrical brake resistor arrangement (108) being electrically connected to the electric source and arranged to heat air supplied from the air flow producing unit by electrical power received from the electric source, and to supply heated air to the ambient environment ...

FUEL CELL TEMPERATURE DISTRIBUTION CONTROL SYSTEM, FUEL CELL, AND TEMPERATURE DISTRIBUTION CONTROL METHOD

FUEL-CELL COOLING ASSEMBLY AND METHOD FOR CONTROLLING A FUEL-CELL COOLING ASSEMBLY

燃料電池装置

エネルギー管理システム、エネルギー管理装置及び電力管理方法

VERFAHREN ZUR REGELUNG DES WÄRME- UND/ODER STROMBEDARFSGEFÜHRTEN BETRIEBS VON BRENNSTOFFZELLENANLAGEN

Intelligente Mea für eine Brennstoffzelle

Intelligente Membran-Elektroden-Anordnung (MEA) (100) für eine Brennstoffzelle, mit:einer MEA (100), in welcher ein Katalysatorlayer (201) auf beiden Seiten einer Ionenaustauschermembran (200) als Beschichtung aufgebracht ist, und ein Ionenaustauschermembran-Trägerfilm (202) auf beiden Seiten eines Randabschnitts der Ionenaustauschermembran (200) angebracht ist;einer flexiblen gedruckten Schaltung (PCB) (400), die auf einer Oberfläche des Ionenaustauschermembran-Trägerfilms (202) längs der Außenlinie des Katalysatorlayers (201) der MEA angebracht ist;einem PCB-Anschluss (306), der an einem Ende der flexiblen PCB (400) angeformt ist; undeinem mit dem PCB-Anschluss (306) verbundenen Verbinder zur Kommunikation mit einer externen Steuereinrichtung,wobei die flexible PCB (400) Folgendes aufweist: ein elektrisches Heizelement (301); einen Temperatursensor (302) für das elektrische Heizelement (301) zur Messung der Temperatur des elektrischen Heizelementes (301); einen MEA-Temperatursensor (303 ...

Motor drive system

A motor drive system 100 comprising a fuel cell 110 arranged to output current to a motor 120; and a cryogenic system 130 which is arranged to communicate a cryogen from the cryogenic system to the fuel cell. The cryogenic system may also communicate a cryogen to the motor to cause a reduction in temperature of the motor. The electrical connection of the fuel cell to the motor may be in the form of an electrical bus 140 which may also be cooled by a cryogen communicated from the cryogenic system. The motor may comprise a stator 22, such as a cryostator, and a rotor 24. Such a motor may comprise at least one of a permanent magnet and an induction motor. The rotor may comprise an inner rotor (240, Figure 3B) and an outer rotor (220, Figure 3A) wherein the inner rotor is arranged inwardly of the stator and the stator is arranged inwardly of the outer rotor. An aircraft may comprise the motor drive system and the fuel cell may be arranged within a fuselage and/or nacelle (560, Figure 6) of ...

PROCEDURE FOR THE REGULATION WÄRMEUND/ODER OF REQUIREMENTS OF ELECTRIC CURRENT-LED ENTERPRISE OF GAS CELL PLANTS

Betriebsvorrichtung, Brennstoffzellensystem, Kraftfahrzeug und Verfahren zum Betreiben eines Brennstoffzellensystems

Die vorliegende Erfindung betrifft eine Betriebsvorrichtung (1) zum Betreiben einer Brennstoffzelle (2), aufweisend ein Ermittlungsmodul (3) zum Ermitteln von Betriebsparametern der Brennstoffzelle (2), ein Analysemodul (4) zum Ermitteln von Betriebszuständen der Brennstoffzelle (2) auf Basis der ermittelten Betriebsparameter mittels einer Total Harmonic Distortion Analysis und ein Kontrollmodul (5) zum Kontrollieren des Betriebs der Brennstoffzelle (2). Die Betriebsvorrichtung (1) weist ein Speichermodul (6) zum Speichern einer Signalreaktionsmatrix auf, wobei das Kontrollmodul (5) Reaktionsmittel aufweist für einen kontrollierenden Eingriff in den Betrieb der Brennstoffzelle (2) auf Basis eines ermittelten Betriebszustands der Brennstoffzelle (2) und der Signalreaktionsmatrix. Ferner betrifft die Erfindung ein Brennstoffzellensystem (14) zur Bereitstellung elektrischer Energie, ein Kraftfahrzeug (15) sowie ein Verfahren zum Betreiben eines erfindungsgemäßen Brennstoffzellensystems (14 ...

Regulating a control quantity of a fuel cell with a conditioning unit determining an actual value of the controlled variable a reactant

Um zumindest einen Istwert einer Regelgröße eines Reaktanden einer Brennstoffzelle für eine Regelung mit möglichst geringem Messfehler zu ermitteln, ist vorgesehen, dass mit einem Modell ( ) der Konditioniereinheit (3) ein Modellwert der Regelgröße (RGn ) berechnet wird, mit einem Sensormodell (Sn ) für den Messsensor (Sn) ein Modellwert des Istwertes der Regelgröße (RGnm) berechnet wird, aus dem mit dem Messsensor (Sn) gemessenen Istwert der Regelgröße (RGnist) und dem mit dem Sensormodell (Sn ) berechneten Modellwert des Istwertes der Regelgröße (RGnm) ein Korrekturwert (RGcorr) für die Regelgröße (RGn) berechnet wird und der Istwert der zumindest einen Regelgröße (RGnist ) als Summe aus dem Korrekturwert (RGcorr) und dem mit dem Modell ( ) der Konditioniereinheit (3) berechneten Modellwert der Regelgröße (RGn ) berechnet wird, wobei dieser Istwert der Regelgröße (RGnist ) auch im Sensormodell (Sn) zur Berechnung des Modellwerts des Istwertes der Regelgröße (RGnm) verwendet wird.