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WO2010013316A1 - Système de génération d'énergie hybride et son procédé de fonctionnement - Google Patents

Système de génération d'énergie hybride et son procédé de fonctionnement Download PDF

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Publication number
WO2010013316A1
WO2010013316A1 PCT/JP2008/063607 JP2008063607W WO2010013316A1 WO 2010013316 A1 WO2010013316 A1 WO 2010013316A1 JP 2008063607 W JP2008063607 W JP 2008063607W WO 2010013316 A1 WO2010013316 A1 WO 2010013316A1
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WO
WIPO (PCT)
Prior art keywords
water
heat exchanger
power generation
generation system
hybrid power
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/JP2008/063607
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English (en)
Japanese (ja)
Inventor
岸部　忠晴
晋 中野
弘行 白岩
小林　成嘉
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to PCT/JP2008/063607 priority Critical patent/WO2010013316A1/fr
Priority to JP2010522550A priority patent/JPWO2010013316A1/ja
Publication of WO2010013316A1 publication Critical patent/WO2010013316A1/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
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K21/00—Steam engine plants not otherwise provided for
    • F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
    • F01K21/047—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas having at least one combustion gas turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12—Cooling of plants
    • F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
    • F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
    • F02C7/143—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages
    • F02C7/1435—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages by water injection
    • 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
    • H01M8/04141—Humidifying by water containing exhaust gases
    • 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 that generates power using a gas turbine and a fuel cell, and an operation method thereof.
  • a fuel cell is basically a system that generates electricity by a reaction between hydrogen and oxygen, and generates water as a reaction product.
  • a fuel cell is a system that directly generates power using a chemical reaction, and thus has a significantly higher power generation efficiency than a gas turbine.
  • hybrid power generation systems combining fuel cells and gas turbines have been developed in order to further improve power generation efficiency.
  • the working medium is heated by a combustor.
  • a fuel cell performs part or all of the temperature rise of the working medium instead of the combustor. Can be improved.
  • JP 2002-124605 A a technique equipped with a humidifying facility for spraying water obtained from the outside to the intake air or compressed air of the gas turbine has been proposed (for example, JP 2002-124605 A). -See 138852). JP 2002-138852 A
  • An object of the present invention is to provide a hybrid power generation system capable of improving output and increasing efficiency while suppressing costs, and an operation method thereof.
  • the present invention provides a compressor that compresses intake air, a regenerative heat exchanger that heats compressed air from the compressor, and a reaction of battery fuel with compressed air from the regenerative heat exchanger.
  • a fuel cell that is heated by heat and generates a high-temperature gas containing water, which is a reaction product of battery fuel, and a turbine that is driven by the high-temperature gas from the fuel cell and discharges exhaust gas that serves as a heat source to the regenerative heat exchanger
  • a heat exchanger that condenses and recovers water in the exhaust gas from the regenerative heat exchanger, a water supply tank that stores water recovered by the heat exchanger, intake air of the compressor, and the compression And a water supply pump for supplying water from the water supply tank to the compressed air supplied from the machine to the fuel cell.
  • water generated in the fuel cell can be used to spray water on the intake of the gas turbine and the like, so that it is possible to improve output and increase efficiency while suppressing costs.
  • the system block diagram of the hybrid electric power generation system which is the 1st Embodiment of this invention. 1 is a configuration diagram of a fuel cell 10 according to a first embodiment of the present invention.
  • the system block diagram of the hybrid electric power generation system which is a comparative example regarding the 1st Embodiment of this invention. 1 is a system configuration diagram of a regeneration cycle gas turbine using high humidity air that is a comparative example related to the first embodiment of the present invention.
  • FIG. Explanatory drawing of the system starting schedule which concerns on the hybrid electric power generation system which is the 1st Embodiment of this invention.
  • the system block diagram of the hybrid electric power generation system which is the 3rd Embodiment of this invention Explanatory drawing of the system starting schedule which concerns on the hybrid electric power generation system which is the 3rd Embodiment of this invention.
  • FIG. 1 is a system configuration diagram of a hybrid power generation system according to a first embodiment of the present invention.
  • the hybrid power generation system shown in this figure includes a compressor 1 that compresses and discharges intake air 30 that has passed through a spray device 55, a regenerative heat exchanger 4 that heats compressed air 31 from the compressor 1, and a regenerative heat exchanger.
  • the fuel cell 10 that heats the compressed air 32 from the fuel 4 with the reaction heat of the fuel (cell fuel) 60 to generate the hot gas 33 containing water, which is the reaction product of the cell fuel, and the hot gas 33 from the fuel cell 10 From the turbine 2 that discharges the exhaust gas 35 as a heat source to the regenerative heat exchanger 4, the water supply tank 20 that stores the water generated by the fuel cell 10, the intake air 30 of the compressor 1, and the compressor 1.
  • a water supply pump 50 that supplies water from the water supply tank 20 to the compressed air 31 supplied to the regenerative heat exchanger 4 is provided.
  • the turbine 2 rotates the compressor 1 and the generator 5 connected to the turbine 2 by the driving force given by the hot gas 33.
  • the regenerative heat exchanger 4 exchanges heat between the exhaust gas 35 from the turbine 2 and the compressed air 31 to heat the compressed air 31 and cool the exhaust gas 35.
  • the cycle provided with the regenerative heat exchanger 4 is referred to as a regeneration cycle, and the power generation efficiency is higher than that of the cycle not provided with the regenerative heat exchanger 4.
  • the exhaust gas 36 cooled by the regenerative heat exchanger 4 is supplied to the fuel cell 10. Next, the fuel cell 10 will be described in detail.
  • FIG. 2 is a configuration diagram of the fuel cell 10 according to the present embodiment.
  • symbol is attached
  • Solid Oxide Fuel Cell SOFC
  • hydrogen may not be directly used as the fuel (cell fuel) 60 but may be used as the fuel 60 by reforming a hydrocarbon-based fuel such as natural gas to produce hydrogen.
  • the fuel cell 10 shown in this figure includes an evaporator 13, a reformer 12, a battery unit 11, and a heat exchanger 14.
  • the components such as the preheater are omitted for simplification.
  • the evaporator 13 evaporates the water from the water supply tank 20 by the high temperature gas 33 and is connected to the water supply tank 20 via the pump 52.
  • a high temperature gas 33 generated in the battery unit 11 is introduced into the evaporator 13 of the present embodiment, and the high temperature gas 33 is used as a heat source for heating water from the water supply tank 20.
  • the steam generated in the evaporator 13 is supplied to the reformer 12.
  • the reformer 12 reforms the fuel (for example, natural gas) 60 with the steam from the evaporator 13 and is connected to the evaporator 13. Like the evaporator 13, the reformer 12 of the present embodiment is introduced with a high-temperature gas 33 generated in the battery unit 11, and the high-temperature gas 33 is used as a heat source when reforming the fuel 60. ing. The fuel 60 reformed by the reformer 12 is supplied to the battery unit 11.
  • the fuel 60 reformed by the reformer 12 is supplied to the battery unit 11.
  • the battery unit 11 generates electric power 15 by a chemical reaction of the fuel 60 from the reformer 12 and is connected to the reformer 12 and the regenerative heat exchanger 4.
  • Fuel 60 is supplied from the reformer 12 to the anode (not shown) of the battery unit 11, and oxygen-containing air (fuel cell intake air) from the regenerative heat exchanger 4 is supplied to the cathode (not shown) of the battery unit 11. ) 32 is supplied, and electric power 15 is generated by a chemical reaction caused by these.
  • water fuel cell wastewater
  • is generated as a reaction product at the anode and is contained as water vapor in the exhaust gas generated by the chemical reaction.
  • the exhaust gas generated at the anode and the cathode is heated by reaction heat generated by the chemical reaction, and is discharged from the battery unit 11 as a high-temperature gas (fuel cell exhaust (for example, about 600 to 1000 degrees)) 33.
  • the hot gas 33 is supplied to the turbine 2 after being used as a heat source for the evaporator 13, the reformer 12, and the like.
  • the heat exchanger (exhaust heat recovery heat exchanger) 14 condenses and recovers moisture (fuel cell waste water) in the exhaust gas 36 by exchanging heat between the exhaust gas 36 from the regeneration heat exchanger 4 and the refrigerant 37.
  • a heat exchanger 4 is connected.
  • the water recovered by the heat exchanger 14 is stored in the water supply tank 20 via the water supply line 40.
  • the exhaust gas 39 cooled by the heat exchanger 14 is discharged to the outside.
  • the refrigerant 37 for cooling the exhaust gas 36 there is air, but a part of the water stored in the water supply tank 20 may be used. In this case, it is preferable to separately configure a circulation system that circulates and supplies part of the water in the water supply tank 20 to the heat exchanger 14.
  • the refrigerant temperature of the heat exchanger 14 can be lowered, so that water can be efficiently condensed and recovered from the exhaust gas 36.
  • a dewatering device such as a reverse osmosis membrane between the heat exchanger 14 and the water supply tank 20 or between the water supply tank 20 and the water supply pump 50.
  • a molten carbonate fuel cell (Molten-Carbonate-Fuel-Cell (MCFC)) may be used.
  • the power generation system shown in FIG. 1 includes a water supply line 41, a water supply line 42, a spray device 55, and a humidifier 56.
  • the water supply line 41 supplies water to the spraying device 55 and is connected to the water supply tank 20 via a water supply pump 50.
  • the water supply line 42 supplies water to the humidifier 56 and is connected to the water supply tank 20 via the water supply pump 50.
  • the water in the water supply tank 20 is pressurized by the water supply pump 50 and supplied to the spray device 55 and the humidifier 56.
  • the spray device 55 performs water spray type intake air cooling (Water Atomizing inlet air Cooling (WAC)), and is installed on the upstream side of the compressor 1.
  • WAC Water Atomizing inlet air Cooling
  • the humidifier 56 forms a humidified turbine (Humid Air Turbine (HAT)) by spraying water on the compressed air 31 to form the humidified air, and between the compressor 1 and the regenerative heat exchanger 4. is set up.
  • HAT Human Air Turbine
  • a specific example of the humidifier 56 is a humidifier tower. This humidifying tower sprinkles water from above with respect to the air passing through the inside of the tower from below to increase the moisture content of the air.
  • FIG. 3 is a system configuration diagram of a hybrid power generation system that is a comparative example of the present embodiment
  • FIG. 4 is a system configuration diagram of a high-humidity air utilization regeneration cycle gas turbine that is a comparative example of the present embodiment.
  • the hybrid power generation system shown in FIG. 3 is a combination of a gas turbine and a fuel cell.
  • a hot gas 33 generated in the fuel cell 10 is supplied to the turbine 2 without spraying water on the intake air 30 or increasing the humidity of the compressed air 31.
  • Supply That is, the system of FIG. 3 corresponds to a hybrid power generation system according to the present embodiment in which the water supply tank 20, the water supply pump 50, the water supply line 41, the spray device 55, the water supply line 42, and the humidifier 56 are omitted.
  • the difference from the present embodiment is that water 49 obtained as a reaction product in the fuel cell 10 is drained to the outside.
  • water 46 obtained from the outside is used as in the system shown in FIG. Is provided with a spraying device 55 and a humidifier 56 (hereinafter referred to as “humidifying equipment” as appropriate).
  • the hybrid power generation system of the present embodiment is configured to supply water in the water tank 20 that stores the water generated by the fuel cell 10 and the water in the water tank 20 to the intake air 30 and the compressed air 31.
  • a pump 50 is provided. Accordingly, the water, which is a reaction product of the fuel cell 10, is recovered by the heat exchanger 14 without being discarded as wastewater and used as spray water or the like in the gas turbine, so that not only heat but also water can be used in a hybrid manner.
  • the amount of water used as reforming steam in the reformer 12 is about two-thirds of the water condensed and recovered by the heat exchanger 14, and the remaining one-third of the amount of water.
  • the inventors have obtained the knowledge that the supply to the spraying device 55 and the humidifying device 56 can be covered within this range.
  • the present embodiment has an advantage that the system can be easily operated even in a place / situation where water cannot be introduced from the outside because water can be generated if the fuel 60 of the fuel cell 10 can be secured.
  • FIG. 5 is an explanatory diagram of a system startup schedule according to the hybrid power generation system of the present embodiment.
  • the vertical axis shows the amount of water and the electrical output
  • the horizontal axis shows the elapsed time since the system was started.
  • the set value 70 on the vertical axis is a minimum required value as the amount of water in the water supply tank 20 in order to supply water to the intake air 30 and the compressed air 31 via the spray device 55 and the humidifier 56.
  • a time 71 on the horizontal axis indicates the time when the water supply pump 50 is activated.
  • the inside of the water supply tank 20 is initially empty (or less than the set value 70), and the spray device 55 and the humidifier 56 cannot spray water. Therefore, as shown in this figure, first, without supplying water to the water supply line 41 and the water supply line 42 (that is, without starting the water supply pump 50), the gas turbine (the compressor 1, the regenerative heat exchanger 4, the turbine) 2) and the fuel cell 10 is started.
  • the gas turbine the compressor 1, the regenerative heat exchanger 4, the turbine
  • the fuel cell 10 When the fuel cell 10 is started, water generated inside the fuel cell 10 accumulates in the water supply tank 20, and the amount of water increases with time.
  • the water supply pump 50 is activated to start water spraying (time 71). After this time 71, water spray can be performed by the spray device 55 and the humidifier 56, so that the electrical output of the system can be improved as shown in FIG.
  • the hybrid power generation system according to the present embodiment can be operated even in an area with little water by using the water generated in the fuel cell 10. That is, after the time 71 when the feed water pump 50 is activated, the output and efficiency improvement effects by the spray device 55 and the humidifier 56 can be exhibited.
  • a control device that senses the amount of water in the water supply tank 20 and transmits an activation signal to the water supply pump 50 when the amount of water reaches the set value 70 may be provided to automatically control the activation of the water supply pump 50.
  • the set value of the water supply tank 20 for starting water supply to the spray device 55 and the water supply to the humidifier 56 are started.
  • the set value of the water supply tank 20 may be set individually, and a time difference may be provided in the time when water supply is started to the spray device 55 and the humidifier 56.
  • the water supply line 41 and the water supply line 42 need to be configured to supply water individually.
  • water supply means such as a water supply pump is provided in both the water supply lines 41 and 42.
  • a water supply pump is attached to one of the water supply lines 41 and 42 and a valve is attached to the other.
  • the system when the system is provided with a circulation system that circulates and supplies the water in the water supply tank 20 as the refrigerant 37 of the heat exchanger 14, air is used as the refrigerant 37 from the time the system is started until the amount of water for the refrigerant 37 is accumulated. Use it.
  • FIG. 6 is a system configuration diagram of a hybrid power generation system according to the second embodiment of the present invention.
  • the hybrid power generation system shown in this figure is different from that of the first embodiment in that a combustor 3 is provided between the fuel cell 10 and the turbine 2.
  • the combustor 3 is configured to add a fuel (combustion fuel) 61 to the high-temperature gas 33 from the fuel cell 10 and burn it to generate a combustion gas 34 to be supplied to the turbine 2.
  • the temperature of the high temperature gas 33 can be increased by a combustion reaction, so that the combustion gas 34 having a desired temperature is obtained by adjusting the amount of the fuel 61 or the like. be able to. Further, when the combustor 3 is provided, even when unreacted fuel (cell fuel) 60 remains in the high-temperature gas 33, these can be burned, so that the usage rate of the fuel 60 can be improved. it can.
  • the higher the temperature of the combustion gas 34 the higher the output and efficiency of the gas turbine.
  • the level of the combustion gas 34 depends on the design of the gas turbine and the total system design of the hybrid power generation system. .
  • FIG. 7 is a system configuration diagram of a hybrid power generation system according to the third embodiment of the present invention.
  • the hybrid power generation system shown in this figure mainly includes a water-lubricated bearing 7 that supports the shaft of the turbine 2, a circulating water tank 21 that stores water supplied from the water supply tank 20, and water in the circulating water tank 21.
  • a circulation pump 51 is provided for circulating and supplying water to the water-lubricated bearing 7.
  • the system shown in this figure is provided with the combustor 3.
  • the combustor 3 may be omitted.
  • Water lubricated bearings 7 are installed at both ends of the generator rotor 6.
  • a water supply line 44 is connected to the water lubrication bearing 7, and water in the circulating water tank 21 is circulated and supplied by a circulation pump 51.
  • the water supplied to the water-lubricated bearing 7 via the water supply line 44 is then drained via the drainage line 45 and returns to the circulating water tank 21.
  • a relatively small size for example, several hundreds kW
  • a turbine that rotates at high speed are used in the hybrid power generation system, if the water-lubricated bearing 7 is used as a bearing, the bearing loss is reduced as compared with the case where lubricating oil is used. And high efficiency can be achieved.
  • the hybrid power generation system can be constructed even in an environment where oil cannot be used (for example, a food factory), so that the environmental characteristics of the system are improved.
  • the circulating water tank 21 is connected to the water supply tank 20 through a water supply line 43.
  • Lubricating water circulated and supplied to the water-lubricated bearing 7 evaporates during the circulation or leaks, and therefore gradually decreases.
  • the water supply line 43 is for compensating for the decrease in the lubricating water.
  • the water supply line 43 is provided with an on-off valve 80.
  • the on-off valve 80 is opened so that the amount of water in the circulating water tank 21 is maintained at or above the minimum required value (set value 72 in FIG. 8) as the amount of water for using the water lubricated bearing 7.
  • the on-off valve 80 is opened, the water in the water supply tank 21 is supplied to the circulating water tank 21 via the water supply line 43.
  • water may naturally flow from the water tank 20 to the circulating water tank 21 due to its own weight.
  • the water can be replenished simply by opening the on-off valve 80.
  • the water in the water supply tank 20 (generated by the fuel cell 10 is generated through the water supply line 43. Water).
  • an oil-free system can be constructed without separately preparing water for replenishing circulating water.
  • generated by the fuel cell 10 can be increased compared with said each embodiment, the hybrid system which the utilization factor of water improved further can be constructed
  • FIG. 8 is an explanatory diagram of a system startup schedule according to the hybrid power generation system of the present embodiment.
  • the vertical axis of this figure indicates the amount of water in the circulating water tank 21 and the operating state of the gas turbine and the fuel cell 10, and the horizontal axis indicates the elapsed time since the system was started.
  • the set value 72 on the vertical axis is a minimum required value as the amount of water in the circulating water tank 21 for using the water-lubricated bearing 7.
  • a time 73 on the horizontal axis indicates a time when the gas turbine is started.
  • the circulating water tank 21 is initially empty (or less than the set value 72), the water lubricated bearing 7 cannot be used, and the gas turbine cannot be started. Therefore, as shown in this figure, first, only the fuel cell 10 is started while the gas turbine is stopped. When the fuel cell 10 is started, the water generated in the fuel cell 10 is accumulated in the water supply tank, and the water is supplied to the circulating water tank 21 through the water supply line 43. When the amount of water in the circulating water tank 21 increases and reaches the set value 70, the circulating pump 51 is started thereafter to operate the water lubrication system, and the gas turbine is started (time 73). If the system is started in this way, the oil-free hybrid power generation system according to the present embodiment can be operated even in an area where there is little water by using the water generated in the fuel cell 10. Environmental characteristics are further improved.
  • the fuel cell provided in the system is of a type that does not require fuel reforming, it is not necessary to use water for reforming steam during operation of the fuel cell. Therefore, since all the water in the water supply tank 20 can be supplied to the circulating water tank 21, a gas turbine can be started earlier than the case of the fuel cell 10 demonstrated above.
  • the amount of water required to be supplied to the spray device 55 and the humidifier 56 is not in the water supply tank 20, which has been described with reference to FIG.
  • water spraying may be started after the necessary amount of water has accumulated.
  • a control device is provided that senses the amount of water in the circulating water tank 21 and transmits a start signal to the gas turbine when the amount of water reaches the set value 72, thereby starting the gas turbine. Needless to say, automatic control may be performed.

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Abstract

L'invention porte sur un système de génération d'énergie hybride qui comporte un compresseur (1) pour comprimer de l'air d'admission (30), un échangeur de chaleur à récupération (4) pour chauffer l'air comprimé (31) provenant du compresseur, une pile à combustible (10) qui produit un gaz à haute température (33) contenant un produit de réaction de la pile à combustible, à savoir de l'eau, en chauffant l'air comprimé provenant de l'échangeur de chaleur à récupération avec la chaleur de réaction de la pile à combustible (60), une turbine (2) qui est  entraînée par le gaz à haute température provenant de la pile à combustible pour évacuer le gaz d'échappement (35) qui devient une source de chaleur pour l'échangeur de chaleur à récupération, un échangeur de chaleur (14) pour condenser et recueillir l'eau dans le gaz d'échappement provenant de l'échangeur de chaleur à récupération, un réservoir d'alimentation en eau (20) stockant l'eau recueillie par l'échangeur de chaleur, et une pompe (50) pour distribuer l'eau se trouvant dans le réservoir d'alimentation en eau (20) à l'air d'admission (30) et à l'air comprimé (31). Etant donné que l'eau produite par la pile à combustible (10) peut être pulvérisée dans l'air d'admission de la turbine à gaz, la sortie est améliorée et un rendement élevé peut être obtenu tout en réduisant le coût.
PCT/JP2008/063607 2008-07-29 2008-07-29 Système de génération d'énergie hybride et son procédé de fonctionnement Ceased WO2010013316A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2008/063607 WO2010013316A1 (fr) 2008-07-29 2008-07-29 Système de génération d'énergie hybride et son procédé de fonctionnement
JP2010522550A JPWO2010013316A1 (ja) 2008-07-29 2008-07-29 ハイブリッド発電システム及びその運転方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/063607 WO2010013316A1 (fr) 2008-07-29 2008-07-29 Système de génération d'énergie hybride et son procédé de fonctionnement

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WO2010013316A1 true WO2010013316A1 (fr) 2010-02-04

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KR101204908B1 (ko) 2011-06-30 2012-11-26 삼성테크윈 주식회사 압축 가스를 이용한 동력 생산 시스템
JP2013519820A (ja) * 2010-02-12 2013-05-30 ザ シティ ユニバーシティ スクリューマシンの潤滑
WO2014005921A1 (fr) * 2012-07-06 2014-01-09 Siemens Aktiengesellschaft Procédé de génération d'eau à partir du flux d'échappement d'un système de turbine à gaz
KR101440192B1 (ko) 2012-10-09 2014-09-15 한국기계연구원 터보차저 방식의 공기 연료 유입 연료전지 시스템
JP2017500683A (ja) * 2013-09-24 2017-01-05 バイエリシエ・モトーレンウエルケ・アクチエンゲゼルシヤフト 燃料電池セル装置の操作方法
WO2021028196A1 (fr) * 2019-08-09 2021-02-18 Robert Bosch Gmbh Procédé pour faire fonctionner un système de pile à combustible et système de pile à combustible
WO2021259768A1 (fr) * 2020-06-23 2021-12-30 Robert Bosch Gmbh Transfert thermique dans le trajet de cathode d'un système de pile à combustible au moyen de l'évaporation/de la condensation d'eau produite
CN113982753A (zh) * 2021-11-03 2022-01-28 上海交通大学 一种将煤气化与sofc-hat集成一体的混合动力发电系统
CN114976123A (zh) * 2022-06-24 2022-08-30 杭州博曼智能装备有限公司 一种氢燃料电池供气系统及其动力装置
US20230113619A1 (en) * 2020-03-12 2023-04-13 Robert Bosch Gmbh Bearing arrangement for a shaft in a turbocompressor

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CN113565595B (zh) * 2021-07-16 2024-01-30 珠海城市职业技术学院 一种船舶废热回收装置及回收方法

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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
JP2005054779A (ja) * 2003-07-24 2005-03-03 Hitachi Ltd ガスタービン発電設備及びその運転方法

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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
JP2005054779A (ja) * 2003-07-24 2005-03-03 Hitachi Ltd ガスタービン発電設備及びその運転方法

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013519820A (ja) * 2010-02-12 2013-05-30 ザ シティ ユニバーシティ スクリューマシンの潤滑
KR101204908B1 (ko) 2011-06-30 2012-11-26 삼성테크윈 주식회사 압축 가스를 이용한 동력 생산 시스템
WO2014005921A1 (fr) * 2012-07-06 2014-01-09 Siemens Aktiengesellschaft Procédé de génération d'eau à partir du flux d'échappement d'un système de turbine à gaz
KR101440192B1 (ko) 2012-10-09 2014-09-15 한국기계연구원 터보차저 방식의 공기 연료 유입 연료전지 시스템
JP2017500683A (ja) * 2013-09-24 2017-01-05 バイエリシエ・モトーレンウエルケ・アクチエンゲゼルシヤフト 燃料電池セル装置の操作方法
WO2021028196A1 (fr) * 2019-08-09 2021-02-18 Robert Bosch Gmbh Procédé pour faire fonctionner un système de pile à combustible et système de pile à combustible
US20230113619A1 (en) * 2020-03-12 2023-04-13 Robert Bosch Gmbh Bearing arrangement for a shaft in a turbocompressor
WO2021259768A1 (fr) * 2020-06-23 2021-12-30 Robert Bosch Gmbh Transfert thermique dans le trajet de cathode d'un système de pile à combustible au moyen de l'évaporation/de la condensation d'eau produite
CN113982753A (zh) * 2021-11-03 2022-01-28 上海交通大学 一种将煤气化与sofc-hat集成一体的混合动力发电系统
CN114976123A (zh) * 2022-06-24 2022-08-30 杭州博曼智能装备有限公司 一种氢燃料电池供气系统及其动力装置

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