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WO2013073498A1 - Système de pile à combustible et procédé pour refroidir un système de pile à combustible - Google Patents

Système de pile à combustible et procédé pour refroidir un système de pile à combustible Download PDF

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Publication number
WO2013073498A1
WO2013073498A1 PCT/JP2012/079269 JP2012079269W WO2013073498A1 WO 2013073498 A1 WO2013073498 A1 WO 2013073498A1 JP 2012079269 W JP2012079269 W JP 2012079269W WO 2013073498 A1 WO2013073498 A1 WO 2013073498A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
generation unit
heat medium
fuel cell
power generation
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2012/079269
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English (en)
Japanese (ja)
Inventor
翔 横山
水野　康
幸弘 川路
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
JX Nippon Oil and Energy Corp
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 JX Nippon Oil and Energy Corp filed Critical JX Nippon Oil and Energy Corp
Priority to JP2013544258A priority Critical patent/JP6114197B2/ja
Publication of WO2013073498A1 publication Critical patent/WO2013073498A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M8/04—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
    • H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
    • 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
    • H01M8/10—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
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/40—Combination of fuel cells with other energy production systems
    • H01M2250/405—Cogeneration of heat or hot water
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/10—Applications of fuel cells in buildings
    • 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 and a fuel cell system cooling method.
  • Patent Document 1 discloses a power generation unit including a cell stack, a casing that houses the power generation unit, a fan that takes air into the casing from the outside of the casing, and the air as a cathode of the cell stack. And a blower for supplying to the machine. In this fuel cell system, air is taken into the casing from outside the casing to cool and ventilate the casing.
  • the casing that houses the power generation unit as described above may be required to ensure airtightness from the viewpoint of installation of the fuel cell system in a facility, for example.
  • a fan that takes air from outside the housing into the housing cannot be installed in the housing.
  • the present invention provides a fuel cell system and a cooling method for a fuel cell system that can efficiently cool the power generation unit housed in the housing even if the housing that houses the power generation unit has airtightness.
  • the issue is to provide.
  • a fuel cell system includes a power generation unit including a cell stack that generates power using a hydrogen-containing gas, a housing that houses the power generation unit, a combustion gas of off-gas discharged from the cell stack, and a liquid A heat exchanger that heats the heat medium by transferring heat from the combustion gas to the heat medium, and a heat medium passage that circulates the heat medium to the heat exchanger,
  • the medium flow path is provided to cool the power generation unit by transferring heat from the power generation unit to the heat medium.
  • a heat medium flow path is provided so as to cool the power generation section by transferring heat from the power generation section to the heat medium. Therefore, according to this fuel cell system, even if the casing housing the power generation unit is made airtight, the power generation unit accommodated in the casing can be efficiently cooled. Airtight means that it is airtight with respect to outside air other than the gas scheduled to be introduced into the housing.
  • a fuel cell system includes a power generation unit including a cell stack that generates power using a hydrogen-containing gas, a housing that houses the power generation unit, and an off-gas combustion gas discharged from the cell stack.
  • a heat exchanger that circulates the liquid heat medium, moves heat from the combustion gas to the heat medium to heat the heat medium, and a plurality of heat medium flow paths that circulate the heat medium to the heat exchanger; The heat medium flow path is provided so as to cool the power generation unit by transferring heat from the power generation unit to the heat medium.
  • each of the heat medium flow paths may distribute different types of heat medium to the heat exchanger.
  • each of the heat medium flow paths may distribute the same type of heat medium to the heat exchanger.
  • the heat medium flow path may be a flow path through which the heat medium flows into the heat exchanger. According to this, since heat is transferred from the power generation unit to the heat medium before being heated by the heat exchanger, the power generation unit accommodated in the housing can be cooled more efficiently.
  • the heat medium may be water.
  • heated water that is, hot water
  • the reforming water is preheated, and thus the reforming water can be efficiently vaporized. .
  • the heat medium may be glycols. Since glycols have a boiling point higher than that of water, the heat of the power generation unit can be recovered at a temperature higher than that of water.
  • the casing may have airtightness. Also in this case, the power generation unit accommodated in the housing can be efficiently cooled.
  • the heat medium flow path may be laid in a zigzag shape on the outer wall of the power generation unit. Furthermore, the heat medium flow path may be branched into a plurality on the outer wall of the power generation unit. According to these, since the contact area between the power generation unit and the heat medium flow path can be increased, heat exchange between the power generation unit and the heat medium flow path can be ensured.
  • a cooling method for a fuel cell system is a cooling method for a fuel cell system including a power generation unit including a cell stack that generates power using a hydrogen-containing gas, and a housing that houses the power generation unit.
  • the heat generation unit is configured to distribute the heat medium of the liquid to be heated by transferring heat from the off-gas combustion gas discharged from the cell stack and transfer the heat from the power generation unit to the heat medium. Cool down.
  • the power generation unit accommodated in the casing can be efficiently cooled.
  • 1 is a block diagram of a fuel cell system according to a first embodiment of the present invention.
  • 1 is a conceptual diagram of a fuel cell system according to a first embodiment of the present invention. It is a conceptual diagram of the fuel cell system of 2nd Embodiment of this invention. It is a conceptual diagram of the fuel cell system of 3rd Embodiment of this invention.
  • the fuel cell system 1 of the first embodiment includes a desulfurization unit 2, a water vaporization unit 3, a hydrogen generation unit 4, a cell stack 5, an off-gas combustion unit 6, and a hydrogen-containing fuel.
  • a supply unit 7, a water supply unit 8, an oxidant supply unit 9, a power conditioner 10, and a control unit 11 are provided.
  • the fuel cell system 1 generates power in the cell stack 5 using a hydrogen-containing fuel and an oxidant.
  • the type of the cell stack 5 in the fuel cell system 1 is not particularly limited, and examples thereof include a polymer electrolyte fuel cell (PEFC), a solid oxide fuel cell (SOFC), and phosphoric acid.
  • PEFC polymer electrolyte fuel cell
  • SOFC solid oxide fuel cell
  • a fuel cell (PAFC: Phosphoric Acid Fuel Cell), a molten carbonate fuel cell (MCFC: Molten Carbonate Fuel Cell), and other types can be employed. 1 may be appropriately omitted depending on the type of cell stack 5, the type of hydrogen-containing fuel, the reforming method, and the like.
  • hydrocarbon fuel a compound containing carbon and hydrogen in the molecule (may contain other elements such as oxygen) or a mixture thereof is used.
  • hydrocarbon fuels include hydrocarbons, alcohols, ethers, and biofuels. These hydrocarbon fuels are derived from conventional fossil fuels such as petroleum and coal, and synthetic systems such as synthesis gas. Those derived from fuel and those derived from biomass can be used as appropriate. Specific examples of hydrocarbons include methane, ethane, propane, butane, natural gas, LPG (liquefied petroleum gas), city gas, town gas, gasoline, naphtha, kerosene, and light oil. Examples of alcohols include methanol and ethanol. Examples of ethers include dimethyl ether. Examples of biofuels include biogas, bioethanol, biodiesel, and biojet.
  • oxygen-enriched air for example, air, pure oxygen gas (which may contain impurities that are difficult to remove by a normal removal method), or oxygen-enriched air is used.
  • the desulfurization unit 2 desulfurizes the hydrogen-containing fuel supplied to the hydrogen generation unit 4.
  • the desulfurization part 2 has a desulfurization catalyst for removing sulfur compounds contained in the hydrogen-containing fuel.
  • a desulfurization method of the desulfurization unit 2 for example, an adsorptive desulfurization method that adsorbs and removes sulfur compounds and a hydrodesulfurization method that removes sulfur compounds by reacting with hydrogen are employed.
  • the desulfurization unit 2 supplies the desulfurized hydrogen-containing fuel to the hydrogen generation unit 4.
  • the water vaporization unit 3 generates water vapor supplied to the hydrogen generation unit 4 by heating and vaporizing water.
  • heat generated in the fuel cell system 1 such as recovering the heat of the hydrogen generation unit 4, the heat of the off-gas combustion unit 6, or the heat of the exhaust gas may be used.
  • FIG. 1 only heat supplied from the off-gas combustion unit 6 to the hydrogen generation unit 4 is described as an example, but the present invention is not limited to this.
  • the water vaporization unit 3 supplies the generated water vapor to the hydrogen generation unit 4.
  • the hydrogen generation unit 4 generates a hydrogen rich gas using the hydrogen-containing fuel from the desulfurization unit 2.
  • the hydrogen generator 4 has a reformer that reforms the hydrogen-containing fuel with a reforming catalyst.
  • the reforming method in the hydrogen generating unit 4 is not particularly limited, and for example, steam reforming, partial oxidation reforming, autothermal reforming, and other reforming methods can be employed.
  • the hydrogen generator 4 may have a configuration for adjusting the properties in addition to the reformer reformed by the reforming catalyst depending on the properties of the hydrogen rich gas required for the cell stack 5.
  • the hydrogen generation unit 4 is configured to remove carbon monoxide in the hydrogen-rich gas. (For example, a shift reaction part and a selective oxidation reaction part).
  • the hydrogen generation unit 4 supplies a hydrogen rich gas to the anode 12 of the cell stack 5.
  • the cell stack 5 generates power using the hydrogen rich gas from the hydrogen generation unit 4 and the oxidant from the oxidant supply unit 9.
  • the cell stack 5 includes an anode 12 to which a hydrogen-rich gas is supplied, a cathode 13 to which an oxidant is supplied, and an electrolyte 14 disposed between the anode 12 and the cathode 13.
  • the cell stack 5 supplies power to the outside via the power conditioner 10.
  • the cell stack 5 supplies the hydrogen rich gas and the oxidant, which have not been used for power generation, to the off gas combustion unit 6 as off gas.
  • a combustion section for example, a combustor that heats the reformer
  • the hydrogen generation section 4 may be shared with the off-gas combustion section 6.
  • the off gas combustion unit 6 burns off gas supplied from the cell stack 5.
  • the heat generated by the off-gas combustion unit 6 is supplied to the hydrogen generation unit 4 and used for generation of a hydrogen rich gas in the hydrogen generation unit 4.
  • the hydrogen-containing fuel supply unit 7 supplies hydrogen-containing fuel to the desulfurization unit 2.
  • the water supply unit 8 supplies water to the water vaporization unit 3.
  • the oxidant supply unit 9 supplies an oxidant to the cathode 13 of the cell stack 5.
  • the hydrogen-containing fuel supply unit 7, the water supply unit 8, and the oxidant supply unit 9 are configured by a pump, for example, and are driven based on a control signal from the control unit 11.
  • the power conditioner 10 adjusts the power from the cell stack 5 according to the external power usage state. For example, the power conditioner 10 performs a process of converting a voltage and a process of converting DC power into AC power.
  • the control unit 11 performs control processing for the entire fuel cell system 1.
  • the control unit 11 is configured by a device including a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and an input / output interface, for example.
  • the control unit 11 is electrically connected to a hydrogen-containing fuel supply unit 7, a water supply unit 8, an oxidant supply unit 9, a power conditioner 10, and other sensors and auxiliary equipment not shown.
  • the control unit 11 acquires various signals generated in the fuel cell system 1 and outputs a control signal to each device in the fuel cell system 1.
  • the fuel cell system 1 includes a casing 21 that is airtight to external air, as shown in FIG.
  • the casing 21 houses the above-described devices including the power generation unit 22.
  • the power generation unit 22 is modularized including the cell stack 5 that generates power using hydrogen-rich gas (hydrogen-containing gas).
  • the power generation unit 22 includes at least the cell stack 5, and may further include an off-gas combustion unit 6, a hydrogen generation unit 4, or the like, or may not include the off-gas combustion unit 6, the hydrogen generation unit 4, or the like. .
  • a heat exchanger 23 is accommodated in the housing 21.
  • the heat exchanger 23 circulates the off-gas combustion gas discharged from the cell stack 5 (that is, the exhaust gas from the off-gas combustion unit 6) and water, thereby moving the heat from the combustion gas to the water to heat the water.
  • This water is, for example, stored in a hot water tank for supplying hot water to a facility where the fuel cell system 1 is installed, and is circulated and supplied from the hot water tank to the heat exchanger 23.
  • a water passage (heat medium passage) 24 through which water circulated and supplied from a hot water tank flows into the heat exchanger 23 and a water passage 25 through which the water flows out from the heat exchanger 23.
  • the water flow path 24 is laid in a zigzag manner on the outer wall of the power generation unit 22 so as to cool the power generation unit 22 by transferring heat from the power generation unit 22 to water. Thereby, the heat exchange between the electric power generation part 22 and the water flow path 24 can be ensured.
  • the water flow path 25 returns the water (that is, hot water) heated by the power generation unit 22 and the heat exchanger 23 to, for example, a hot water storage tank.
  • the water flow path 24 that allows water to flow into the heat exchanger 23 moves the heat from the power generation unit 22 to the water so as to cool the power generation unit 22.
  • the water to be heated is circulated from the off-gas combustion gas discharged from the cell stack 5, and the water to be heated is circulated to the water from the power generation unit 22.
  • a method for cooling the fuel cell system is performed in which heat is transferred to cool the power generation unit 22. Thereby, heat moves from the power generation unit 22 to the water before being heated by the heat exchanger 23.
  • the power generation unit 22 accommodated in the casing 21 having airtightness that is, airtight with respect to outside air other than the gas scheduled to be introduced into the casing 21
  • the power generation unit 22 accommodated in the casing 21 having airtightness that is, airtight with respect to outside air other than the gas scheduled to be introduced into the casing 21
  • It can cool well.
  • water since water is heated by the power generation unit 22 and the heat exchanger 23, hot water can be used in the facility where the fuel cell system 1 is installed.
  • the fuel cell system 1 of the second embodiment is mainly different from the fuel cell system 1 of the first embodiment described above in that a plurality of water flow paths 24 are provided.
  • the fuel cell system 1 of the second embodiment will be described focusing on this difference.
  • the fuel cell system 1 of the second embodiment includes a plurality of water flow paths (heat medium flow paths) 24A and 24B.
  • the water flow path 24 ⁇ / b> A is connected to the heat exchanger 23, and for example, water circulated from a hot water storage tank flows into the heat exchanger 23.
  • the water that has flowed into the heat exchanger 23 through the water flow path 24 ⁇ / b> A is discharged from the heat exchanger 23 through the water flow path 25 ⁇ / b> A connected to the heat exchanger 23.
  • the water flow path 24B is connected to the heat exchanger 23, and for example, reforming water used in the hydrogen generator 4 (see FIG. 1) flows into the heat exchanger 23 to generate hydrogen-rich gas. Let The water that has flowed into the heat exchanger 23 through the water flow path 24B is caused to flow out of the heat exchanger 23 through the water flow path 25B connected to the heat exchanger 23.
  • the off-gas combustion gas discharged from the cell stack 5, the water circulated and supplied from the hot water storage tank, and the reforming water are circulated through the heat exchanger 23. Therefore, in the heat exchanger 23, heat is transferred from the combustion gas to the water circulated and supplied from the hot water tank and the reforming water, and the water circulated and supplied from the hot water tank and the reforming water are heated. Will be.
  • the water circulated and supplied from the hot water tank is, for example, a large amount of 200 L of tap water, and its flow rate is, for example, 100 to 2000 cc / min.
  • the reforming water is, for example, a small amount of about 1 L of pure water, and its flow rate is, for example, 1 to 100 cc / min.
  • each of the water flow paths 24 ⁇ / b> A and 24 ⁇ / b> B distributes different types of water to the heat exchanger 23.
  • Each of the water channels 24A and 24B includes a zigzag shape (the channel is folded at least once) on the outer wall of the power generation unit 22 so as to cool the power generation unit 22 by transferring heat from the power generation unit 22 to water. ).
  • the water flow path 25A returns the water (that is, hot water) heated by the power generation unit 22 and the heat exchanger 23 to, for example, a hot water storage tank.
  • the water flow path 25B introduces the water heated by the power generation unit 22 and the heat exchanger 23 into the water vaporization unit 3 (see FIG. 1).
  • the water flow paths 24A and 24B that allow water to flow into the heat exchanger 23 transfer heat from the power generation unit 22 to the water to cool the power generation unit 22. It is provided to do.
  • the water to be heated is transferred from the off-gas combustion gas discharged from the cell stack 5, and the water to be heated is circulated to the water from the power generation unit 22.
  • a method for cooling the fuel cell system is performed in which heat is transferred to cool the power generation unit 22.
  • heat moves from the power generation unit 22 to the water before being heated by the heat exchanger 23. Therefore, according to the fuel cell system 1, the power generation unit 22 accommodated in the casing 21 having airtightness (that is, airtight with respect to outside air other than the gas scheduled to be introduced into the casing 21) is efficiently used. It can cool well.
  • the water flow path 24A circulates water circulated and supplied from the hot water storage tank, heated water (that is, hot water) can be used in the facility where the fuel cell system 1 is installed.
  • the water flow path 24B distributes the water for reforming used in the hydrogen generating unit 4 to generate the hydrogen-rich gas, the water for reforming can be efficiently vaporized by the water vaporizing unit 3.
  • the fuel cell system 1 of the third embodiment is mainly different from the fuel cell system 1 of the first embodiment described above in that the water flow path 24 is branched.
  • the fuel cell system 1 of the third embodiment will be described focusing on this difference.
  • the fuel cell system 1 of the third embodiment includes a water flow path 24 branched into a plurality on the outer wall of the power generation unit 22.
  • the water channel 24 is branched into a water channel 24 1 and a water channel 24 2 on the upstream side of the power generation unit 22, and the water channel 24 1 and the water channel 24 2 merge on the downstream side of the power generation unit 22.
  • the water channel 24 is connected to the heat exchanger 23, and for example, water circulated and supplied from a hot water storage tank flows into the heat exchanger 23.
  • the water that has flowed into the heat exchanger 23 by the water channel 24 is caused to flow out of the heat exchanger 23 by the water channel 25 connected to the heat exchanger 23.
  • the off-gas combustion gas discharged from the cell stack 5 and the water circulated and supplied from the hot water storage tank are circulated in the heat exchanger 23. Therefore, in the heat exchanger 23, heat is transferred from the combustion gas to the water circulated and supplied from the hot water tank, and the water circulated and supplied from the hot water tank is heated.
  • Each of the water flow paths 24 1 and 24 2 which are branched portions of the water flow path 24, are laid in a zigzag manner on the outer wall of the power generation unit 22 so as to cool the power generation unit 22 by transferring heat from the power generation unit 22 to water. Has been. Thereby, reliably the heat exchange between the power generation portion 22 the contact area between the water flow path 24 1, 24 2 can be increased, the power generation unit 22 and the water passages 24 1, 24 2 Can do.
  • the water flow path 25 returns the water (that is, hot water) heated by the power generation unit 22 and the heat exchanger 23 to, for example, a hot water storage tank.
  • the water flow path 24 through which water flows into the heat exchanger 23 moves the heat from the power generation unit 22 to the water to cool the power generation unit 22.
  • water that is to be heated by transferring heat from the off-gas combustion gas discharged from the cell stack 5 is circulated to the water from the power generation unit 22.
  • a method for cooling the fuel cell system is performed in which heat is transferred to cool the power generation unit 22.
  • heat moves from the power generation unit 22 to the water before being heated by the heat exchanger 23. Therefore, according to the fuel cell system 1, the power generation unit 22 accommodated in the casing 21 having airtightness (that is, airtight with respect to outside air other than the gas scheduled to be introduced into the casing 21) is efficiently used. It can cool well.
  • the present invention is not limited to the first to third embodiments.
  • casing 21 does not need to have airtightness. Also in this case, it is not necessary to separately provide the casing 21 with a fan or the like for taking air into the casing 21 from the outside of the casing 21, so that the structure of the fuel cell system 1 can be simplified.
  • the water flowing through the water flow path 24 is not limited to the water circulated and supplied from the hot water storage tank, but for reforming supplied to the water vaporization unit 3.
  • Other water such as water may be used.
  • the water flowing through each of the water flow paths 24A and 24B is limited to water that is circulated and supplied from the hot water tank or water for reforming that is supplied to the water vaporization unit 3. It may be other water.
  • the water flowing through each of the water flow paths 24A and 24B may be the same type of water, such as water circulated and supplied from a hot water storage tank.
  • a heat medium flow path may be provided.
  • a liquid heat medium for example, glycols
  • the heat medium flow path may be provided so as to cool the power generation unit 22 by transferring heat from the power generation unit 22 to the heat medium.
  • circulates glycols is provided, since glycols have a boiling point higher than water, it becomes possible to collect
  • different types of water for example, water circulated and supplied from a hot water tank or water for reforming
  • different types of heat medium may be circulated or the same type of heat medium may be circulated.
  • the water channel 24 may be a channel through which water flows out from the heat exchanger 23.
  • the power generation unit 22 can be cooled if the temperature of the water heated by the heat exchanger 23 is lower than the temperature of the power generation unit 22.
  • the power generation unit accommodated in the casing can be efficiently cooled.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
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  • Sustainable Energy (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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  • General Chemical & Material Sciences (AREA)
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Abstract

La présente invention concerne un système de pile à combustible (1) comprenant : une unité génératrice d'électricité (22) contenant un empilement de piles (5) générant de l'électricité en utilisant un gaz contenant de l'hydrogène ; un boîtier (21) qui contient l'unité génératrice d'électricité (22) ; un échangeur de chaleur (23) provoquant la circulation d'eau et de gaz de combustion constitué de gaz de dégagement se dégageant de l'empilement de piles (5), transférant la chaleur du gaz de combustion à l'eau pour ainsi chauffer l'eau ; et un conduit d'eau (24) qui provoque l'apport d'eau à l'échangeur de chaleur (23). Le conduit d'eau (24) est disposé de manière à refroidir l'unité génératrice d'électricité (22) par transfert de chaleur de l'unité génératrice d'électricité (22) à l'eau.
PCT/JP2012/079269 2011-11-15 2012-11-12 Système de pile à combustible et procédé pour refroidir un système de pile à combustible Ceased WO2013073498A1 (fr)

Priority Applications (1)

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JP2013544258A JP6114197B2 (ja) 2011-11-15 2012-11-12 燃料電池システム

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JP2011249810 2011-11-15
JP2011-249810 2011-11-15

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WO2013073498A1 true WO2013073498A1 (fr) 2013-05-23

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
JP2015176818A (ja) * 2014-03-17 2015-10-05 大阪瓦斯株式会社 燃料電池システム
JP6171114B1 (ja) * 2017-05-18 2017-07-26 東京瓦斯株式会社 燃料電池システム
WO2017126699A1 (fr) * 2016-01-23 2017-07-27 京セラ株式会社 Dispositif de pile à combustible

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190393522A1 (en) * 2018-06-25 2019-12-26 Saint-Gobain Ceramics & Plastics, Inc. Electrochemical assembly including heat exchanger
EP4078705A4 (fr) 2019-12-20 2024-11-13 Saint-Gobain Ceramics & Plastics Inc. Appareil comprenant des dispositifs électrochimiques et échangeur de chaleur

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