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WO2021080260A1 - Système de production d'énergie hybride - Google Patents

Système de production d'énergie hybride Download PDF

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Publication number
WO2021080260A1
WO2021080260A1 PCT/KR2020/014214 KR2020014214W WO2021080260A1 WO 2021080260 A1 WO2021080260 A1 WO 2021080260A1 KR 2020014214 W KR2020014214 W KR 2020014214W WO 2021080260 A1 WO2021080260 A1 WO 2021080260A1
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WO
WIPO (PCT)
Prior art keywords
gas
anode
heat exchanger
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/KR2020/014214
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English (en)
Korean (ko)
Inventor
박진아
최성호
최재원
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Mico Power Ltd
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Mico Power Ltd
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Filing date
Publication date
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Priority to CN202080073892.1A priority Critical patent/CN114586205B/zh
Publication of WO2021080260A1 publication Critical patent/WO2021080260A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
    • H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
    • 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
    • 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
    • H01M8/04164—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 by condensers, gas-liquid separators or filters
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04761—Pressure; Flow of fuel cell exhausts
    • 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
    • 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
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465—Details of groupings of fuel cells
    • H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
    • H01M8/2475—Enclosures, casings or containers of fuel cell stacks
    • 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
    • H01M2250/402—Combination of fuel cell with other electric generators
    • 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 hybrid power generation system using a fuel cell stack and an engine device.
  • Fuel cells generate electricity by using the reaction of hydrogen and oxygen. Such a fuel cell is most efficient when hydrogen is used directly, but for this purpose, installing a hydrogen storage tank directly in a place where the fuel cell is installed causes many problems in safety. Therefore, at present, hydrocarbon fuels are reformed to generate hydrogen and are used as fuel for fuel cells.
  • Fuel cells are more efficient than conventional thermal power generation, so it is possible to save fuel for power generation, cogeneration power generation is also possible, and various fuels such as natural gas, city gas, methanol, and waste gas can be used, thereby replacing thermal power generation. It is being evaluated as an energy conversion device that can be used.
  • the emission of NOx and CO2 is significantly lower than that of coal-fired power generation, and it is possible to install it in an urban area or in a building as it is possible to operate without pollution with less noise.
  • solid oxide fuel cells (SOFC) and molten carbonate fuel cells (MCFC) operating at high temperatures can be used for distributed power generation that produces high-capacity electricity in the range of tens of kW to MW, and can be used for high-temperature anode off-gas or high-temperature. It is advantageous to produce additional electricity by utilizing the cathode off-gas. Accordingly, in recent years, a fuel cell-engine hybrid power generation system in which an anode off-gas discharged from a high-temperature fuel cell and an engine for power generation are combined has been proposed.
  • the hybrid power generation system is an early stage of development, and further research and development is required to improve the operation stability and power generation efficiency of the hybrid power generation system.
  • An object of the present invention is to provide a hybrid power generation system capable of improving operation stability, power generation efficiency, and the like.
  • a hybrid power generation system includes a fuel cell stack for generating electric energy and discharging a first anode off gas; A first moisture remover for separating the first anode off gas into a second anode off gas and condensed water through gas-liquid separation; The temperature of the first anode-off gas is reduced through heat exchange between the first anode-off gas, the second anode-off gas, and the cooling medium to be provided to the first moisture remover, and the temperature of the second anode-off gas is reduced.
  • a first heat exchanger that rises and discharges; And an engine device generating electric energy by burning the second anode off gas discharged from the first heat exchanger.
  • the first heat exchanger may receive air supplied from an external air supply source as the cooling medium, and increase the temperature of the air through heat exchange to provide it to the fuel cell stack.
  • the hybrid power generation system may further include a reformer for reforming fuel gas using condensed water supplied from the first moisture remover and supplying the reformed fuel gas to the fuel cell stack.
  • the first heat exchanger includes: a first partition wall portion forming a first flow path through which the second anode off gas moves; A second partition wall portion surrounding the first flow path and forming a second flow path through which the first anode off gas moves; And a third partition wall portion surrounding the second flow path and forming a third flow path through which the cooling medium moves.
  • the hybrid power generation system may further include a fuel cell housing accommodating the fuel cell stack therein, and in this case, the first heat exchanger and the first moisture remover are Can be placed outside.
  • the hybrid power generation system performs heat exchange between the high-temperature engine exhaust gas discharged from the engine device, the second anode off gas supplied from the first heat exchanger, and air supplied from an external air supply source. Through this, the temperature of the engine exhaust gas is reduced, the temperature of the second anode off gas and the air is increased, the cooled exhaust gas is discharged to the outside, and the heated second anode off gas and the air are It may further include a second heat exchanger supplied to the engine device.
  • the hybrid power generation system includes a first pipe through which the second anode-off gas is discharged from the first heat exchanger, a first pipe through which the second anode-off gas is discharged, the engine device, or a first supplying the second anode-off gas to the second heat exchanger.
  • the second anode off gas is supplied to the second heat exchanger or the second anode off gas discharged from the first heat exchanger is supplied to the second heat exchanger or is discharged to the external discharge port, which is connected to a third pipe that transfers the second anode off gas to the pipe and the external discharge port. It may further include a first valve.
  • the hybrid power generation system separates the second anode off gas into a third anode off gas and condensed water through gas-liquid separation after receiving the second anode off gas from the first valve, and the A second moisture remover supplying a third anode off gas to the second heat exchanger; And a reformer for reforming the fuel gas using the condensed water supplied from the first and second moisture removers and supplying the reformed fuel gas to the fuel cell stack.
  • the hybrid power generation system is installed in an eighth pipe branching from a pipe supplying the air discharged from the first heat exchanger to the fuel cell stack and supplying the air to the second heat exchanger, It may further include a fourth valve for controlling the opening and closing of the eighth pipe.
  • the hybrid power generation system is connected to a fifth pipe connected to an external air supply source, a sixth pipe supplying air to the first heat exchanger, and a seventh pipe supplying air to the second heat exchanger, A third valve for supplying the air supplied from the air supply source to the first heat exchanger or the second heat exchanger may be further included.
  • the hybrid power generation system may further include a second valve installed in a fourth pipe through which the second anode off gas discharged from the first moisture remover moves to the first heat exchanger.
  • FIG. 1 is a view for explaining a hybrid power generation system according to an embodiment of the present invention.
  • FIG. 2A is a cross-sectional view illustrating the first heat exchanger illustrated in FIG. 1, and FIG. 2B is a cross-sectional view taken along a cutting line A-A' illustrated in FIG. 2A.
  • FIG 3 is a view for explaining a hybrid power generation system according to another embodiment of the present invention.
  • FIG. 4 is a view for explaining a hybrid power generation system according to another embodiment of the present invention.
  • first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.
  • FIG. 1 is a view for explaining a hybrid power generation system according to an embodiment of the present invention
  • FIG. 2A is a cross-sectional view illustrating a first heat exchanger shown in FIG. 1
  • FIG. 2B is a cut line A shown in FIG. 2A. It is a cross-sectional view taken along -A'.
  • a hybrid power generation system 1000 includes a fuel cell stack 1110, a reformer 1120, a fuel cell housing 1130, and a first heat exchanger. 1140), a moisture remover 1150, an engine device 1210, and a second heat exchanger 1220 may be included.
  • the fuel cell stack 1110 may generate electric energy by reacting the reformed fuel and oxygen.
  • the fuel cell stack 1110 may include at least one selected from a solid oxide fuel cell (SOFC) stack operating at a high temperature, a molten carbonate fuel cell (MCFC) stack, and the like.
  • SOFC solid oxide fuel cell
  • MCFC molten carbonate fuel cell
  • the fuel cell stack 1110 may discharge a high-temperature first anode-off gas, and some of the first anode-off gas may be supplied to the first heat exchanger 1140, and the remainder of the first anode-off gas may be supplied to the fuel cell housing 1130. It can be supplied to a burner (not shown) or another heat exchanger disposed therein.
  • the reformer 1120 may reform the hydrocarbon fuel supplied from the external fuel supply source 10 using steam and then supply it to the fuel cell stack 1110.
  • the structure of the reformer 1120 is not particularly limited, and a known reformer for fuel cells can be applied without limitation, and thus a detailed description thereof will be omitted.
  • the reformer 1120 may include a vaporizer (not shown) that vaporizes water, for example, condensed water supplied from the moisture remover 1150 to form water vapor.
  • the fuel cell housing 1130 may accommodate the fuel cell stack 1110 and the reformer 1120 therein.
  • the fuel cell housing 1130 may include an insulating material (not shown) to reduce heat generated from the fuel cell stack 1110 from being leaked to the outside.
  • the first heat exchanger 1140 is disposed outside the fuel cell housing 1130 and is provided by a high-temperature first anode off gas discharged from the fuel cell stack 1110, a cooling medium, and the moisture remover 1150. It is possible to induce heat exchange between the second anode off gas from which moisture has been removed.
  • air supplied from an external air supply source may be applied as the cooling medium.
  • the high temperature first anode off gas may be cooled by the first heat exchanger 1140, and the air and the second anode off gas from which the moisture is removed may be heated.
  • water or other low-temperature fluid supplied from the outside may be applied without limitation.
  • the first heat exchanger 1140 forms a first partition wall portion 1141 forming a first flow path 1141a, and a second flow path 1142a surrounding the first flow path 1141a. It may include a second partition wall portion 1142 and a third partition wall portion 1143 forming a third flow path 1143a surrounding the second flow path 1142a.
  • the first flow path 1141a formed by the first partition wall portion 1141 may extend in one direction, and the second flow path 1141a from which moisture has been removed by the moisture remover 1150 may be used. Node-off gas can move.
  • the second anode off gas from which the moisture has been removed may be introduced through a first end of the first flow path 1141a and then discharged through a second end of the first flow path 1141a facing the first end. have.
  • the first flow path 1141a is shown to have a rectangular cross-sectional shape in FIG. 2B, the cross-sectional shape of the first flow path 1141a is not particularly limited, and a cross-sectional shape such as a circle or a polygon is used. I can have it.
  • the second partition wall portion 1142 may be disposed to surround at least a side surface of the first partition wall portion 1141, and accordingly, the second flow path 1142a formed by the second partition wall portion 1142 It may be formed to surround the first flow path 1141a.
  • the first anode off gas discharged from the fuel cell stack 1110 may move through the second flow path 1142a.
  • the third partition wall portion 1143 may be disposed to surround at least a side of the second partition wall portion 1142, and accordingly, the third flow path 1143a formed by the third partition wall portion 1143 is It may be formed to surround the second flow path 1142a.
  • the cooling medium may move through the third flow path 1143a.
  • the first anode off gas having the highest temperature between the first flow path 1141a through which the second anode-off gas moves and the third flow path 1143a through which the cooling medium moves Since the second flow path 1142a is located, the thermal energy of the first anode off gas can be transferred to the second anode off gas and the cooling medium through heat exchange, and as a result, the first anode off gas The temperature of may decrease, and the temperature of the second anode off gas may increase. Meanwhile, when air supplied from an external air supply source is applied as the cooling medium, the air may be heated by heat exchange with the first anode off gas.
  • the preheated air and the second anode off gas may be supplied to the fuel cell stack 1110 and the engine device 1210, respectively, and the first anode with a lowered temperature may be supplied to the moisture remover 1150. Off gas can be supplied.
  • the moisture remover 1150 may be disposed outside the fuel cell housing 1130 and may include a gas-liquid separator capable of separating gas and liquid.
  • a gas-liquid separator capable of separating gas and liquid.
  • a known gas-liquid separation device may be applied without limitation, and a detailed description thereof will be omitted.
  • the moisture remover 1150 may separate and discharge the second anode off gas and condensed water from the first anode off gas through gas-liquid separation. That is, the moisture remover 1150 may supply the second anode off gas to the first heat exchanger 1140 and may supply the condensed water to the reformer 1120.
  • the first heat exchanger 1140 is used as the fuel cell. It is disposed outside the housing 1130 and the temperature of the first anode off gas may be lowered through heat exchange in the first heat exchanger 1140.
  • the moisture remover 1150 It may be disposed outside the fuel cell housing 1130.
  • the moisture remover 1150 may be used as the first heat exchanger in addition to the gas-liquid separator.
  • a cooler (not shown) for lowering the temperature of the anode off gas may be further included.
  • the engine device 1210 is disposed outside the fuel cell housing 1130, and generates mechanical energy by burning the second anode off gas, and generates electrical energy by using the second anode off gas.
  • the configuration of the engine device 1210 is not particularly limited as long as it can generate electric energy by burning the second anode off gas.
  • the second heat exchanger 1220 includes high-temperature exhaust gas discharged from the engine device 1210, the second anode off gas supplied from the first heat exchanger 1140, and the air supply source 20. Heat exchange between the air can be induced, the heated second anode off gas and the air can be supplied to the engine device 1210, and the exhaust gas of the engine device 1210 after heat exchange can be discharged to the outside. . Since the structure of the second heat exchanger 1220 is the same as or similar to the structure of the first heat exchanger 1130, a redundant detailed description thereof will be omitted.
  • the hybrid power generation system 1000 may further include a first valve 1310, a second valve 1320, and a third valve 1330.
  • the first valve 1310, the second valve 1320, and the third valve 1330 are formed in the fuel cell housing ( 1130), it can operate stably for a long time.
  • each of the first valve 1310, the second valve 1320, and the third valve 1330 may control a flow rate as well as opening and closing of a connected pipe.
  • the first valve 1310 supplies the second anode off gas to a first pipe 1131 through which the second anode off gas is discharged from the first heat exchanger 1140 and to the second heat exchanger 1220
  • the second pipe 1312 may be connected to an outlet of the second heat exchanger 1220, that is, a third pipe 1313 for transferring the second anode off gas to an external outlet.
  • the first valve 1310 the second anode off gas discharged from the first heat exchanger 1130 may be supplied to the second heat exchanger 1220 or discharged to the outside.
  • the first valve 1310 transfers the second anode off gas to the second heat exchanger 1220 through the second pipe 1312.
  • the second heat exchanger 1220 may additionally heat the second anode off gas through heat exchange and then supply it to the engine device 1210.
  • the first valve 1310 discharges the second anode off gas to the outside through the third pipe 1313 which is a bypass pipe. I can.
  • the second valve 1320 may be installed in a fourth pipe 1321 through which the second anode off gas discharged from the moisture remover 1150 moves to the first heat exchanger 1140.
  • the second valve 1320 may reduce the second anode off gas discharged from the moisture remover 1150 to the It may be supplied to the first heat exchanger 1140.
  • the second valve 1320 is You can block the movement.
  • the third valve 1330 includes a fifth pipe 1331 connected to an external air supply source 20, a sixth pipe 1332 supplying air to the first heat exchanger 1140, and the second heat exchanger 1220. ) May be connected to a seventh pipe 1333 supplying air, and the air supplied from the air supply source 20 may be supplied to the first heat exchanger 1140 or the second heat exchanger 1220. In one embodiment, when both the fuel cell stack 1110 and the engine device 1210 are operating normally, the third valve 1330 may supply the air to the sixth and seventh pipes 1332 and 1333. Through the fuel cell stack 1110 and the engine device 1210 may be supplied to each.
  • the hybrid power generation system 1000 may further include a control unit (not shown) that controls the operation of the first to third valves 1310, 1320, and 13301.
  • the control unit may control operations of the first to third valves 1310, 1320, and 13301 by grasping the operating states of the fuel cell stack 1110 and the engine device 1210. For example, the control unit senses the output current and exhaust gas temperature of each of the fuel cell stack 1110 and the engine device 1210 to determine the operating state of the fuel cell stack 1110 and the engine device 1210. Can grasp.
  • FIG 3 is a view for explaining a hybrid power generation system according to another embodiment of the present invention.
  • a hybrid power generation system 2000 includes a fuel cell stack 2110, a reformer 2120, a fuel cell housing 2130, a first heat exchanger 2140, and a moisture remover. 2150, an engine device 2210, a second heat exchanger 2220, first to fourth valves 2310, 2320, 2330, 2340, and a control unit (not shown).
  • the hybrid power generation system 2000 is substantially the same as or similar to the configuration of the hybrid power generation system 1000 described with reference to FIG. 1, except that the fourth valve 2340 is further included.
  • FIG. 1 a detailed description will be omitted, and the difference from the hybrid power generation system 1000 described with reference to FIG. 1 will be mainly described.
  • the fourth valve 2340 is branched from a pipe supplying the air discharged from the first heat exchanger 2130 to the fuel cell stack 2110 and absorbs some of the air discharged from the first heat exchanger 2130. It may be installed in the eighth pipe 2341 supplied to the second heat exchanger 2220, and the opening and closing of the eighth pipe 2341 may be controlled.
  • the control unit transfers the air heated in advance through the eighth pipe 2341 to the second heat exchanger 2220 independently of the air supplied to the second heat exchanger 2220 through the seventh pipe 2333. Can supply.
  • the hybrid power generation system 2000 according to the present embodiment may not include the seventh pipe 2333 and the third valve 2330, and in this case, the second heat exchanger 2220 8 Air can be supplied only through the pipe 2341.
  • FIG. 4 is a view for explaining a hybrid power generation system according to another embodiment of the present invention.
  • a hybrid power generation system 3000 includes a fuel cell stack 3110, a reformer 3120, a fuel cell housing 3130, a first heat exchanger 3140, and a first The moisture remover 3150, the second moisture remover 3160, the engine unit 3210, the second heat exchanger 3220, the first to fourth valves 3310, 3320, 3330, 3340, and a control unit (not shown) Can include.
  • the hybrid power generation system 3000 according to the present embodiment is substantially the same as or similar to the configuration of the hybrid power generation system 1000 described with reference to FIG. 1 except that the second moisture remover 3160 is further included, Hereinafter, duplicated detailed descriptions will be omitted, and a description will be made focusing on differences from the hybrid power generation system 1000 described with reference to FIG. 1.
  • the second moisture remover 3160 may be disposed outside the fuel cell housing 3130 and may include a gas-liquid separator capable of separating gas and liquid.
  • the second moisture remover 3160 receives the second anode off gas discharged from the first heat exchanger 3140 through the first valve 3310 and then removes moisture therefrom to generate condensed water.
  • the second anode off gas from which the moisture has been additionally removed may be supplied to the second heat exchanger, and the condensed water may be supplied to the reformer 3120.

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

Abstract

L'invention concerne un système de production d'énergie hybride pour générer de l'énergie électrique au moyen d'un empilement de piles à combustible et d'un appareil de moteur. Le système de production d'énergie hybride comprend : un empilement de piles à combustible pour générer de l'énergie électrique et décharger un premier gaz d'arrêt d'anode; un extracteur d'humidité pour séparer le premier gaz de dégagement d'anode en un second gaz de dégagement d'anode et de l'eau condensée au moyen d'une séparation gaz-liquide; un premier échangeur de chaleur pour, au moyen d'un échange de chaleur entre le premier gaz d'arrêt d'anode, le second gaz d'arrêt d'anode et un milieu de refroidissement, fournir le premier gaz d'arrêt d'anode au dispositif d'élimination d'humidité, par réduction de la température de celui-ci, et la décharge du second gaz de degagement d'anode par augmentation de la température de celui-ci; et un appareil de moteur pour générer de l'énergie électrique par combustion du second gaz de dégagement d'anode évacué du premier échangeur de chaleur.
PCT/KR2020/014214 2019-10-24 2020-10-19 Système de production d'énergie hybride Ceased WO2021080260A1 (fr)

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JPH11233129A (ja) * 1998-02-17 1999-08-27 Mitsubishi Heavy Ind Ltd 固体電解質型燃料電池発電システム
JP2005038817A (ja) * 2003-06-30 2005-02-10 Kawasaki Heavy Ind Ltd 燃料電池・常圧タービン・ハイブリッドシステム
KR20160063497A (ko) * 2014-11-26 2016-06-07 현대중공업 주식회사 연료전지 복합 하이브리드 시스템
KR20160139488A (ko) * 2015-05-27 2016-12-07 한국기계연구원 분산발전용 연료전지―엔진 하이브리드 발전시스템 비상 정지 운전 방법
KR20180002365A (ko) * 2016-06-29 2018-01-08 한국기계연구원 다단 개질기 구조를 가지는 연료전지-엔진 하이브리드 발전시스템

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US6994930B1 (en) * 2002-08-21 2006-02-07 The United States Of America As Represented By The United States Department Of Energy Direct fired reciprocating engine and bottoming high temperature fuel cell hybrid
KR101735647B1 (ko) * 2015-05-27 2017-05-24 한국기계연구원 냉각 장치를 갖는 분산발전용 연료전지-엔진 하이브리드 발전시스템
CN110077221B (zh) * 2019-04-19 2021-05-28 西安交通大学 一种固体氧化物燃料电池和内燃机联合动力系统及其运行方法

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Publication number Priority date Publication date Assignee Title
JPH11233129A (ja) * 1998-02-17 1999-08-27 Mitsubishi Heavy Ind Ltd 固体電解質型燃料電池発電システム
JP2005038817A (ja) * 2003-06-30 2005-02-10 Kawasaki Heavy Ind Ltd 燃料電池・常圧タービン・ハイブリッドシステム
KR20160063497A (ko) * 2014-11-26 2016-06-07 현대중공업 주식회사 연료전지 복합 하이브리드 시스템
KR20160139488A (ko) * 2015-05-27 2016-12-07 한국기계연구원 분산발전용 연료전지―엔진 하이브리드 발전시스템 비상 정지 운전 방법
KR20180002365A (ko) * 2016-06-29 2018-01-08 한국기계연구원 다단 개질기 구조를 가지는 연료전지-엔진 하이브리드 발전시스템

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