WO2008016217A1 - Système de piles à combustible - Google Patents

Système de piles à combustible Download PDF

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Publication number
WO2008016217A1
WO2008016217A1 PCT/KR2007/002521 KR2007002521W WO2008016217A1 WO 2008016217 A1 WO2008016217 A1 WO 2008016217A1 KR 2007002521 W KR2007002521 W KR 2007002521W WO 2008016217 A1 WO2008016217 A1 WO 2008016217A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel cell
reformed gas
fuel
unit
cell stack
Prior art date
Application number
PCT/KR2007/002521
Other languages
English (en)
Inventor
Ho-Suk Kim
Hyung-Mok Cho
Sang-Yong Lee
Byung-Sun Hong
Mee-Nam Shinn
Original Assignee
Fuelcell Power, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuelcell Power, Inc. filed Critical Fuelcell Power, Inc.
Priority to JP2008545510A priority Critical patent/JP2009518820A/ja
Publication of WO2008016217A1 publication Critical patent/WO2008016217A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
    • H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029—Heat exchange using liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M2008/1095—Fuel cells with polymeric electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04126—Humidifying
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present invention relates to a fuel cell system generating electric power through an electrochemical reaction. More particularly, the present invention relates to a fuel cell system that can improve power generation efficiency by removing moisture contained in residual reformed gas passing through a fuel cell stack without using additional power.
  • a conventional fuel cell system 300 has a configuration shown as FIG. 8.
  • a conventional fuel cell system 300 includes a fuel cell stack 310 generating direct current power through an electrochemical reaction between hydrogen and oxygen, a fuel process unit 320 reforming a hydrocarbon-based power generation fuel F, such as liquefied natural gas (LNG) or liquefied petroleum gas (LPG), into a hydrogen-rich gas, an oxygen supply unit having an air pump 370 supplying oxygen to the fuel cell stack 310, and a power converter 340 converting DC power generated in the fuel cell stack 310 into AC power.
  • the fuel cell system 300 further includes a variety of balance of plants (BOPs) and a controller.
  • BOPs balance of plants
  • the fuel cell system 300 further includes a reformed gas supply pipe 350 for directing the reformed gas generated in the fuel process unit 320 to the fuel cell stack 310, a residual reformed gas discharge pipe 351 for returning residual reformed gas that is not consumed in the fuel cell stack 310 to a combustor 321 , and a bypass pipe 352 for directing the reformed gas to the residual reformed gas discharge pipe 351 without directing the reformed gas into the fuel cell stack 310.
  • a reformed gas supply pipe 350 for directing the reformed gas generated in the fuel process unit 320 to the fuel cell stack 310
  • a residual reformed gas discharge pipe 351 for returning residual reformed gas that is not consumed in the fuel cell stack 310 to a combustor 321
  • a bypass pipe 352 for directing the reformed gas to the residual reformed gas discharge pipe 351 without directing the reformed gas into the fuel cell stack 310.
  • reactors such as a reforming reactor, a carbon monoxide remover, and a desulfurizer, which are disposed in the fuel process unit 320, must be heated up to a predetermined temperature. Therefore, the fuel cell system 300 increases the temperature of the reactors up to about 650 ° C by supplying air and power generation fuel to the combustor 321 of the fuel process unit 320. Further, when the reforming reactor is heated up to a temperature capable of reforming the fuel, a predetermined amount of power generation fuel F is supplied to the fuel supply pipe, and at the same time, a predetermined amount of water is supplied for the steam reforming and a small amount of air is supplied to a carbon monoxide remover.
  • the reformed gas when the fuel process unit 320 starts generating the reformed gas, the reformed gas contains a large amount of carbon monoxide as the temperature of the carbon monoxide remover is not stabilized. Therefore, the reformed gas is not supplied directly to the fuel cell stack 310 but is directed to the combustor 321 through the bypass pipe 352.
  • solenoid valves installed on the reformed gas supplying pipe 350 and the residual reformed gas discharge pipe 351 are opened.
  • a solenoid valve installed on the bypass pipe 352 is closed so that the reformed gas can be directed to the combustor 321 of the fuel process unit 320 after passing through the fuel cell stack 310.
  • the fuel cell system 300 generates power in proportion to an amount of the reformed gas supplied to the fuel cell stack 310.
  • an input amount of the power generation fuel increases steeply to increases power generation up to a rated power generation level, the density of the carbon monoxide in the reformed gas increases. Therefore, the input amount of the power generation fuel increases step by step or linearly.
  • the combustor 321 of the fuel process unit 320 maintains a predetermined temperature. However, the residual reformed gas passing through the fuel cell stack
  • the fuel cell system 300 causes a back diffusion phenomenon of water in a proton electrolyte membrane of a membrane-electrode assembly and contains a large amount of moisture generated when the system operates.
  • saturated steam (actually above saturation) generated at an operational temperature of the fuel cell stack 310 is supplied to the combustor 321 of the fuel process unit 320. Therefore, in order to maintain the combustor 321 of the fuel process unit 320 at the predetermined temperature, more power generation fuel F is input. However, in this case, the power generation efficiency is deteriorated. Further, the fuel cell system 300 has a problem in that the control of the system cannot be uniformly repeated due to the irregular water flow.
  • Exemplary embodiments of the present invention provide a fuel cell system that can uniformly maintain temperatures of a reforming reactor and a combustor of a fuel process unit by removing moisture contained in residual reformed gas passing through a fuel cell stack by installing a heat absorption unit, which does not require additional power consumption, on a residual reformed gas discharge pipe.
  • a fuel cell system includes a fuel cell stack generating electric power through an electrochemical reaction between hydrogen and oxygen, a fuel process unit that reforms power generation fuel into a reformed gas containing hydrogen and is connected to the fuel cell stack to supply the reformed gas to the fuel cell stack, an oxygen supply unit supplying oxygen to the fuel cell stack, a residual reformed gas discharge pipe that is installed between the fuel cell stack and the fuel process unit to allow residual reformed gas that is not consumed in the fuel cell stack to be returned to a combustor of the fuel process unit, and a heat absorption unit that is installed on the residual reformed gas discharge pipe to dissipate heat contained in the residual reformed gas.
  • the fuel cell system may further include a moisture discharge unit that is installed on the residual reformed gas discharge pipe to discharge moisture that is removed from the residual reformed gas by the heat absorption unit.
  • the heat absorption unit may be connected to the oxygen supply unit and receive air from the oxygen supply unit so that the air can heat-exchange with the residual reformed gas.
  • the heat absorption unit may be connected to the oxygen supply unit by being connected to an air supply pipe connected between the oxygen supply unit and the fuel cell stack.
  • the fuel cell system may further include a cooling unit for cooling the fuel cell stack.
  • the heat absorption unit may be connected to the cooling unit so that cooling water supplied from the cooling unit can heat-exchange with the residual reformed gas.
  • a cooling water supply pipe may be installed between the fuel cell stack and the cooling unit and be connected to the heat absorption unit to supply the cooling water of the cooling unit to the heat absorption unit.
  • FIG. 1 is a schematic diagram of a fuel cell system according to a first exemplary embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a cooling unit of the fuel cell system of FIG. 1.
  • FIG. 3 is a schematic diagram of a fuel cell system according to a second exemplary embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a fuel cell system according to a third exemplary embodiment of the present invention.
  • FIG. 5 is a graph illustrating variation of an amount of power generation fuel input to combustors of the prior art fuel cell system and the fuel cell system of the present invention.
  • FIGS. 6 and 7 are graphs illustrating variation of an amount of power generation, variation of an amount of power generation fuel, and variation of airflow according to a time variation when the fuel cell system of the present invention starts operating.
  • FIG. 8 is a schematic diagram of a prior art fuel cell system.
  • FIG. 1 is a schematic diagram of a fuel cell system according to a first exemplary embodiment of the present invention.
  • a fuel cell system 100 of the present exemplary embodiment includes a fuel cell stack 110 generating direct current power through an electrochemical reaction between hydrogen and oxygen, a fuel process unit 120 reforming a hydrocarbon-based power generation fuel F, such as liquefied natural gas (LNG) or liquefied petroleum gas (LPG), into a hydrogen-rich gas, an oxygen supply unit having an air pump 170 supplying oxygen to the fuel cell stack 110 and a humidifier, a cooling unit 130 for cooling the fuel cell stack 110, and a power converter 140 converting DC power generated in the fuel cell stack 110 into AC power.
  • a hydrocarbon-based power generation fuel F such as liquefied natural gas (LNG) or liquefied petroleum gas (LPG)
  • LNG liquefied natural gas
  • LPG liquefied petroleum gas
  • the fuel process unit 120 includes a heater installed on the reforming reactor.
  • the fuel cell system 100 further includes a reformed gas supply pipe 150 for directing the reformed gas generated in the fuel process unit 120 to the fuel cell stack 110, a residual reformed gas discharge pipe 151 for returning residual reformed gas that is not consumed in the fuel cell stack 110 to a combustor 121 , and a bypass pipe 152 for directing the reformed gas to the residual reformed gas discharge pipe 151 without directing the reformed gas into the fuel cell stack 110.
  • a reformed gas supply pipe 150 for directing the reformed gas generated in the fuel process unit 120 to the fuel cell stack 110
  • a residual reformed gas discharge pipe 151 for returning residual reformed gas that is not consumed in the fuel cell stack 110 to a combustor 121
  • a bypass pipe 152 for directing the reformed gas to the residual reformed gas discharge pipe 151 without directing the reformed gas into the fuel cell stack 110.
  • the fuel cell system 100 further includes a variety of BOPs, such as an air pump, a water pump, a power generation fuel gas compressor, solenoid valves, temperature sensors, pressure sensors, and the like, which are related to the fuel cell stack 110 and the fuel process unit 120, and a controller for controlling the BOPs.
  • BOPs such as an air pump, a water pump, a power generation fuel gas compressor, solenoid valves, temperature sensors, pressure sensors, and the like, which are related to the fuel cell stack 110 and the fuel process unit 120, and a controller for controlling the BOPs.
  • the cooling unit 130 includes a water cooled heat exchanger 131 , a water tank 132 that is connected to the heat exchanger 131 to recover waste heat through heat exchange, a water pump 133, an air cooled heat exchanger 134 that dissipates heat using a cooling fan when the waste heat is not recovered by the water tank 132, and a sub-burner 135 that automatically operates when heat consumption is higher than the waste heat recovered by the water tank 132.
  • the fuel cell system 100 includes a heat absorption unit 160 that is installed on the residual reformed gas discharge pipe 151 to absorb heat contained in the residual reformed gas.
  • the heat absorption unit 160 dissipates the heat from the residual reformed gas using the air supplied from the oxygen supply unit to the fuel cell stack 110 or the cooling water of the cooling unit 130 so that the moisture can be separated from the residual reformed gas that is reduced in temperature.
  • the heat absorption unit 160 does not use the power generated from the fuel cell stack 110 but uses air from the oxygen supply unit or the cooling water of the cooling unit 130. Therefore, the heat absorption unit 160 can reduce the temperature of the residual reformed gas without consuming additional power.
  • the heat absorption unit 160 is connected to the air supply pipe installed between the fuel cell stack 110 and the air pump 170 of the oxygen supply unit.
  • the air heat-exchanges with the residual reformed gas while passing through the heat absorption unit 160.
  • the air passing through the heat absorption unit 160 is humidified and supplied to the fuel cell stack 110.
  • FIG. 3 is a schematic diagram of a fuel cell system according to a second exemplary embodiment of the present invention.
  • a fuel cell system 100' may further include a moisture discharge unit 161 disposed on a residual reformed gas discharge pipe 151.
  • a heat absorption unit 160 uses air supplied from the oxygen supply unit, and the moisture discharge unit 161 discharges moisture that is removed from the residual reformed gas by the heat absorption unit 160.
  • FIG. 4 is a schematic diagram of a fuel cell system according to a third exemplary embodiment of the present invention.
  • a heat absorption unit 260 is designed to use cooling water of a cooling unit 230.
  • constituent elements identical to those of the fuel cell system 100 of FIG. 1 will not be described herein but only different constituent elements will be described.
  • a cooling water supply pipe is installed between the cooling unit 230 and the heat absorption unit 260 so that the cooling water can dissipate heat from the residual reformed gas while passing through the heat absorption unit 260.
  • the fuel cell system 200 of the third exemplary embodiment of the present invention further include a moisture discharge unit 261 disposed on a residual reformed gas discharge pipe 251.
  • the moisture discharge unit 261 discharges moisture that is removed from the residual reformed gas by the heat absorption unit 260.
  • FIG. 5 is a graph illustrating variation of an amount of power generation fuel input to a combustor of the prior art fuel cell system and the fuel cell system of the present invention.
  • an amount of the power generation fuel that is input to the combustor of the fuel cell system of the present invention 100, 200 to maintain a temperature of the reforming reactor of the fuel cell system at 650 "C is significantly reduced (reduction amount:
  • FIGS. 6 and 7 are graphs illustrating variation of an amount of power generation, variation of an amount of power generation fuel, and variation of airflow according to a time variation when the fuel cell system of the present invention starts operating.
  • the graph of FIG. 6 shows that the amount of power generation, the amount of power generation fuel, and the flow rate of the air supplied to the fuel cell stack are varied from the start to the rated power generation step by step.
  • the power generation efficiency can be defined by the following Equation 1. [Equation 1]
  • the amount of the power generation fuel required for starting the fuel cell system is less than the amount of the power generation fuel required for increasing the temperature up to a level where the fuel cell system is stabilized for the rated power generation.
  • an amount of the power generation fuel increases through a plurality of steps and thus the amount of power generation increases step by step.
  • the graph of FIG. 7 shows that the amount of power generation, the amount of power generation fuel, and the flow rate of the air supplied to the fuel cell stack are linearly varied from the start to the rated power generation.
  • the amount of the power generation fuel required for starting the fuel cell system is less than the amount of the power generation fuel required for increasing the temperature up to a level where the fuel cell system is stabilized for the rated power generation.
  • the amount of the power generation fuel increases linearly and thus the amount of power generation increases linearly.
  • the residual reformed gas input to the combustor of the fuel cell system may be uniformly adjusted and the temperature of the combustor may also be uniformly adjusted.
  • the fuel cell system of the present invention is designed to remove or reduce steam latent heat and moisture contained in the residual reformed gas, which may affect the temperature variation of the combustor. Therefore, the fuel cell system of the present invention enables a stable, repeatable multi-step operation. As a result, an amount of the power generation fuel input to the combustor of the fuel cell system is reduced as compared with the prior art and thus the power generation efficiency can be improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel Cell (AREA)

Abstract

Un système de piles à combustible inclut un module de piles à combustible générant de l'électricité par l'intermédiaire d'une réaction électrochimique entre hydrogène et oxygène, une unité de traitement de combustible qui reforme un combustible électro-générateur en un gaz reformé contenant de l'hydrogène et est connecté au module de piles à combustible pour fournir le gaz réformé au module de piles à combustible, une unité fournissant de l'oxygène fournissant l'oxygène au module de piles à combustible, un tube de décharge de gaz reformé résiduel qui est installé entre le module de piles à combustible et l'unité de traitement de combustible pour permettre que le gaz réformé résiduel qui n'est pas consumé dans le module de piles à combustible soit envoyé à une chambre de combustion de l'unité de traitement du combustible, et une unité d'absorption de la chaleur qui est installée sur le tube de décharge de gaz reformé résiduel pour dissiper la chaleur contenue dans le gaz reformé résiduel. Selon le système de piles à combustible de la présente invention, les températures internes du réacteur de reformage de l'unité de traitement du combustible et la chambre de combustion peuvent être entretenues uniformément et la quantité de production d'électricité peut augmenter stablement tout en augmentant une quantité du combustible électro-générateur de façon linéaire ou pas à pas.
PCT/KR2007/002521 2006-07-31 2007-05-23 Système de piles à combustible WO2008016217A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008545510A JP2009518820A (ja) 2006-07-31 2007-05-23 燃料電池システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020060072054A KR100798452B1 (ko) 2006-07-31 2006-07-31 연료전지 시스템
KR10-2006-0072054 2006-07-31

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WO2008016217A1 true WO2008016217A1 (fr) 2008-02-07

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KR (1) KR100798452B1 (fr)
WO (1) WO2008016217A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US20210175524A1 (en) * 2018-08-21 2021-06-10 Fuelcell Energy, Inc. Fuel cell with protection from pressure imbalance

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JP2019114478A (ja) * 2017-12-25 2019-07-11 京セラ株式会社 発電装置、制御装置及び制御プログラム
KR102018116B1 (ko) 2019-03-13 2019-09-04 주식회사 코텍에너지 연료전지 비상 차단 시스템 및 그 방법

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JP2000331697A (ja) * 1999-05-19 2000-11-30 Ishikawajima Harima Heavy Ind Co Ltd アノード排ガスラインに蒸気注入する燃料電池発電装置
US20030211373A1 (en) * 2002-03-26 2003-11-13 Matsushita Electric Industrial Co., Ltd. Fuel cell system
US20040101721A1 (en) * 2001-07-26 2004-05-27 Yutaka Yoshida Fuel cell system

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JP2005129263A (ja) * 2003-10-21 2005-05-19 Nissan Motor Co Ltd 燃料電池システム
JP2005197108A (ja) * 2004-01-08 2005-07-21 Hitachi Ltd 燃料電池発電給湯システム
JP2005235462A (ja) * 2004-02-17 2005-09-02 Toyota Motor Corp 燃料電池システム
JP2006031989A (ja) * 2004-07-13 2006-02-02 Tokyo Gas Co Ltd 固体酸化物形燃料電池による発電方法及びシステム
JP4153910B2 (ja) * 2004-12-17 2008-09-24 アイシン精機株式会社 燃料電池システム

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JP2000331697A (ja) * 1999-05-19 2000-11-30 Ishikawajima Harima Heavy Ind Co Ltd アノード排ガスラインに蒸気注入する燃料電池発電装置
US20040101721A1 (en) * 2001-07-26 2004-05-27 Yutaka Yoshida Fuel cell system
US20030211373A1 (en) * 2002-03-26 2003-11-13 Matsushita Electric Industrial Co., Ltd. Fuel cell system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210175524A1 (en) * 2018-08-21 2021-06-10 Fuelcell Energy, Inc. Fuel cell with protection from pressure imbalance
US11804608B2 (en) * 2018-08-21 2023-10-31 Fuelcell Energy, Inc. Fuel cell with protection from pressure imbalance

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JP2009518820A (ja) 2009-05-07

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