WO2015199333A1 - 열효율이 증가된 연료전지모듈, 이를 이용한 난방시스템 및 그 제어방법 - Google Patents
열효율이 증가된 연료전지모듈, 이를 이용한 난방시스템 및 그 제어방법 Download PDFInfo
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- WO2015199333A1 WO2015199333A1 PCT/KR2015/004978 KR2015004978W WO2015199333A1 WO 2015199333 A1 WO2015199333 A1 WO 2015199333A1 KR 2015004978 W KR2015004978 W KR 2015004978W WO 2015199333 A1 WO2015199333 A1 WO 2015199333A1
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- hot water
- fuel cell
- pipe
- cell module
- endothermic
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
- C01B3/384—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts the catalyst being continuously externally heated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
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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
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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
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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
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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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
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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
- H01M8/06—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
- H01M8/0625—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 in a modular combined reactor/fuel cell structure
- H01M8/0631—Reactor construction specially adapted for combination reactor/fuel cell
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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
- H01M8/10—Fuel cells with solid electrolytes
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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
- H01M8/24—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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/06—Integration with other chemical processes
- C01B2203/066—Integration with other chemical processes with fuel cells
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
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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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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- 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 module having an increased thermal efficiency, a heating system using the same, and a control method thereof, and more particularly, fuel, air, and water introduced into a solid oxide fuel cell (SOFC). Preheating enables stable operation even when the temperature of the gas discharged by the burner, which is the main heat source of the fuel cell, is lower than before, and the overall fuel cell efficiency is increased by saving fuel in the burner.
- the present invention relates to a fuel cell module having an increased thermal efficiency that can be appropriately used for heating according to an operating temperature of a fuel cell, a heating system using the same, and a control method thereof.
- the Renewable Energy Supply Mandate which has been in force since 2012, is a zero-book that mandates more than a certain amount of electricity generation to generate a certain amount of renewable energy.
- the promotion of the spread is being promoted.
- a fuel cell is a device that converts chemical energy contained in a fuel into electrical energy.
- a fuel cell module generally stacks hydrogen in reformed gas obtained by reforming a fuel such as natural gas, methanol, gasoline, and oxygen in air. It refers to a power generation system that produces electricity by electrochemical reactions at the anode and cathode of a stack).
- reaction formula and total reaction formula at each pole are as follows.
- Fuel cells include polymer electrolyte fuel cells (PEMFC), direct methanol fuel cells (DMFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC), and alkaline fuel cells (AFC).
- PEMFC polymer electrolyte fuel cells
- DMFC direct methanol fuel cells
- PAFC phosphoric acid fuel cells
- MCFC molten carbonate fuel cells
- SOFC solid oxide fuel cells
- AFC alkaline fuel cells
- SOFC solid oxide fuel cell
- SOFC solid oxide fuel cell
- SOFC has an operating temperature of about 700 ° C. and operates at a very high temperature compared to other types of fuel cells.
- the fuel cell is driven by air, fuel, and water, and in order to reform hydrogen into fuel, which is a direct fuel of the fuel cell, the fuel and water must be preheated to a temperature of about 300 to 400 ° C. and introduced into the reformer.
- a heat medium such as exhaust gas generated from the fuel cell module is sent to a heat exchanger to exchange heat with hot water or hot water. This is the general way.
- the present invention has been made to solve such a problem, the object of the present invention in generating power by using a fuel cell, by efficiently preheating the air and water flowing into the fuel cell to enable a stable operation of the fuel cell module It is to provide a fuel cell module having increased thermal efficiency, a heating system using the same, and a control method thereof, which can reduce fuel to be burned and increase the overall efficiency of the system.
- an object of the present invention is to increase the heat efficiency to maintain the proper operating temperature of the solid oxide fuel cell while at the same time supplying the heating water more efficiently by minimizing the loss of heat in using the heat generated from the fuel cell for heating.
- An object of the present invention is to efficiently heat the air and water flowing into the fuel cell in the power generation using the fuel cell or to generate heat from the fuel cell to enable a stable operation as a whole and to enter the fuel to the burner It is to provide a fuel cell module with increased thermal efficiency, a heating system using the same, and a method of controlling the same, which can reduce and increase overall efficiency.
- the solid oxide fuel cell module generating electricity by receiving fuel and air includes a steam generator for heating and steaming preheated water or fuel in an endothermic water pipe or an endothermic gas pipe, respectively; A reformer for reforming hydrogen gas by reforming the fuel supplied from the steam generator; A fuel cell stack that generates electricity and heat by an electrochemical reaction between hydrogen gas supplied from the reformer and air supplied from the outside; And a heat insulating material installed to surround the stamp generator, the reformer, and the fuel cell stack, wherein the endothermic water pipe or the endothermic gas pipe is disposed along the inner surface of the heat insulating material, and the endothermic water pipe or the endothermic gas pipe.
- the fuel is preheated by heat exchange with the heat insulating material, and is used for power generation of the fuel cell stack via the steam generator and the reformer.
- the water or fuel preheated by receiving the fuel in the endothermic water pipe or the endothermic gas pipe disposed along the inner surface of the heat insulating material, and the electricity of the air supplied from the outside A fuel cell module generating electricity and heat by a chemical reaction;
- a hot water tank storing hot water heated by heat exchange between water introduced into the endothermic water pipe of the fuel cell module and the inside of the heat insulating material;
- a heating module in which hot water supplied from the fuel cell module or the hot water tank is used for heating;
- a hot water supply module for controlling the flow of hot water between the fuel cell module, the hot water tank, and the heating module according to whether the temperature of the fuel cell module is greater than, equal to, less than a reference set value, and whether the heating module is operated. Characterized in that.
- the temperature supply module the hot water supplied from the endothermic water pipe inside the insulation when the temperature of the temperature sensor exceeds a set reference value Is supplied to the heating module via the hot water supply pipe and the hot water tank and then controlled to be returned to the endothermic water pipe through the first return pipe and the second return pipe,
- the temperature supply module when the temperature of the temperature sensor is equal to the set reference value, the hot water supplied from the endothermic water pipe inside the heat insulating material is supplied directly to the heating module through the second hot water distribution pipe and then the first return water Control to return to the heat absorbing pipe inside the heat insulating material through the pipe and the second return pipe,
- the hot water supply module when the temperature of the temperature sensor is less than the set reference value, the hot water supplied from the hot water tank is supplied to the heating module through the first hot water distribution pipe and then the first return pipe and the third return pipe. Through the control to be returned to the hot water tank,
- the hot water supply module supplies hot water supplied from an endothermic pipe inside the insulation to the hot water tank through the hot water supply pipe to warm the hot water stored in the hot water tank.
- the third return pipe and the second return pipe can be controlled to be returned to the endothermic water pipe inside the insulation.
- the bypass valve is opened on the hot water supply pipe connecting the fuel cell module and the hot water tank to the endothermic water pipe.
- the heated water may be controlled to be supplied to the fuel cell module or the hot water tank.
- the thermal efficiency is increased by gas preheating according to an embodiment of the present invention
- the fuel and the water required to operate the fuel cell module are heated by the high temperature exhaust gas of the burner which is the main heat source of the fuel cell module.
- the heating system using a fuel cell module according to an embodiment of the present invention to prevent unnecessary heat loss in the process of transferring heat generated from the fuel cell module to the heat exchanger by the heat medium or heat exchange occurs in the heat exchanger
- the heat generated from the fuel cell module can be efficiently used for heating.
- the solid oxide fuel cell module can be operated by maintaining a high temperature state, and controls heat generated from the solid oxide fuel cell module. At the same time, this heat can be efficiently used for heating.
- FIG. 1 is a plan view of a fuel cell module having increased thermal efficiency by gas preheating according to an embodiment of the present invention.
- FIG. 2 is a front view of a fuel cell module in which thermal efficiency is increased by gas preheating, showing an endothermic water pipe according to an embodiment of the present invention.
- FIG 3 is a front view of a fuel cell module having increased thermal efficiency by gas preheating, showing an endothermic gas pipe according to an embodiment of the present invention.
- FIG. 4 is a perspective view of a fuel cell module in which thermal efficiency is increased by gas preheating of the endothermic water pipe and the endothermic gas pipe according to one embodiment of the present invention.
- FIG. 5 is a plan view illustrating an endothermic pipe passing through a heat insulating material and a heat insulating material in the fuel cell module according to the exemplary embodiment of the present invention.
- FIG. 6 is a partial cross-sectional view taken along the line A-A of FIG.
- FIG. 7 is a schematic operation of the heating system using a fuel cell module according to an embodiment of the present invention.
- FIG 8 is an operation state diagram of the heating system when the temperature of the fuel cell module according to an embodiment of the present invention exceeds a set reference value.
- FIG. 9 is an operation state diagram of the heating system when the temperature of the fuel cell module according to the exemplary embodiment of the present invention is equal to the set reference value.
- FIG. 10 is a diagram illustrating an operating state of a heating system when a temperature of a fuel cell module according to an embodiment of the present invention is lower than a preset reference value.
- 11 is an operation state diagram of the heating system when not using the heating of the heating system using the fuel cell module according to an embodiment of the present invention.
- FIG. 12 is a plan view of a fuel cell in which thermal efficiency is increased by gas preheating according to another embodiment of the present invention.
- FIG. 1 is a plan view of a fuel cell module having increased thermal efficiency by gas preheating according to an embodiment of the present invention.
- the fuel cell module 100 having increased thermal efficiency by gas preheating has a heat insulating material 110 for maintaining the inside at a high temperature which is easy for an electrochemical reaction, and the heat insulating material. It is disposed in the interior space, the steam generator 120 for generating steam, the fuel reformer 130 for receiving the steam generated from the steam generator 120 to reform the fuel to refine the hydrogen gas, the fuel reformer
- the fuel cell stack 140 generates electricity and heat by the electrochemical reaction of the hydrogen gas supplied from the 130 and the air supplied from the outside.
- the heat insulating material 110 may be installed to surround the outside of the fuel cell module 100 to insulate the space inside the fuel cell module 100.
- the steam generator 120 generates steam by heating the water and fuel heated in the endothermic water pipe (P1) and the endothermic gas pipe (P2), respectively, by the exhaust gas of a high-temperature burner and the steam to the reformer 130. Configured to supply.
- the endothermic water pipe (P1) is installed along the surface of the heat insulator (100) inside the heat insulator (110) is preheated while the heat insulator 110 and water heat exchanger It is configured to be heated by the exhaust gas of the high temperature burner in the 120 to enter the fuel reformer 130.
- the endothermic gas pipe (P2) is also installed along the surface of the heat insulating material 110 inside the heat insulating material 110 to supply fuel to the fuel reformer 130 while exchanging heat with the heat insulating material (110). It is composed.
- Water and fuel preheated by heat-exchanging with the heat insulator 110 in the endothermic water pipe P1 and the endothermic gas pipe P2 are used for power generation through the steam generator 120.
- the water and the fuel is continuously introduced into the steam generator 120 through the endothermic water pipe (P1) and the endothermic gas pipe (P2) to ensure a contact area with the heat source for heating time and heat exchange. Continuous, fast and even heating of the fuel is possible.
- the endothermic gas pipe (P2) is preferably installed more inside the endothermic water pipe (P1) relative to the center of the fuel cell module 100.
- the fuel flowing through the endothermic gas pipe (P2) has a higher specific heat than water flowing through the endothermic water pipe (P1) and requires a lot of heat energy for heating, and in the case of fuel, the endothermic gas pipe ( P2) is introduced into the endothermic water pipe (P1) in the case of water in the liquid state, so the pressure received by the endothermic water pipe (P1) increases when the water phase changes into water vapor in the endothermic water pipe (P1). This is because the battery module may be overwhelmed.
- FIG. 2 and 3 are front views of a fuel cell module having increased thermal efficiency by gas preheating, respectively, illustrating an endothermic water pipe and an endothermic gas pipe according to an embodiment of the present invention
- FIG. 4 is an embodiment of the present invention.
- 5 is a perspective view of a fuel cell module having increased heat efficiency by gas preheating, wherein the endothermic water pipe and the endothermic gas pipe are shown as one pipe
- FIG. 5 is a heat insulating material and a heat insulating material inside the fuel cell module according to an embodiment of the present invention.
- It is a top view which shows the endothermic piping which passes through
- FIG. 6 is a fragmentary sectional view taken along the AA line of FIG. The illustration of other structures of the present invention is omitted.
- the endothermic gas pipe (P2) is installed to be installed to take up more volume by bending more times along the inner surface of the heat insulating material 110 than the endothermic water pipe (P1). desirable.
- the endothermic water pipe (P1) or the endothermic gas pipe (P2) may be installed in a straight or curved form along the inner surface of the heat insulating material 110, and the heat insulating material 110 and Widen the contact area of the endothermic water pipe (P1) or the endothermic gas pipe (P2) to sufficiently absorb the heat of the heat insulating material 110, and installed in the shape of the letter 'L' to increase the convenience in construction It is desirable to be.
- the heat insulator 110 may be composed of a total of three layers.
- the total thickness of the heat insulator 110 may be 60 ° C. so that the external temperature of the heat insulator 110 made of Morgan BTU-Block heat insulator is 60 ° C. for easy heating. It is preferably about 150 mm, the temperature of 140 mm point from the inside of the heat insulating material 110 was found to be about 100 °C.
- the endothermic water pipe P1 is installed at 140 mm from the inside of the heat insulator 110 because the boiling water passes through the water having a temperature of 100 ° C. at 1 atm. Most preferably.
- the temperature change rate according to the thickness will be constant. It is preferable to install the endothermic water pipe P1 at about 14/15 points from the inside of the heat insulator 110. .
- the endothermic water pipe (P1) is installed in a state inclined to the outermost layer when the heat insulating material 110 is composed of three layers.
- a heating system using a fuel cell module includes a fuel cell module 100 that is an endothermic system; A hot water tank 200 in which hot water heated by heat exchange between the water flowing into the endothermic water pipe P1 of the fuel cell module 100 and the heat insulating material 110 is stored; And a heating module 300 in which hot water supplied from the fuel cell module 100 or the hot water tank 200 is used. And interlocking the fuel cell module 100 or the hot water tank 200 depending on whether the temperature of the fuel cell module 100 is greater than, less than, equal to, or equal to, the reference set value, or the heating module 300 is operated. It includes a hot water supply module for controlling whether to use the hot water in the fuel cell module 100 or the heating module 300.
- the hot water supply module is a hot water supply pipe (P3) for supplying hot water heated by heat exchange between the heat absorbing water pipe (P1) and the heat insulating material (110) to the hot water tank (200), the hot water tank (200).
- the first hot water distribution pipe (P4) for distributing the stored hot water to the heating module 300, the second to directly distribute the hot water heat exchanged with the heat insulating material 110 to the heating module 300 without passing through the hot water tank (200).
- Hot water distribution pipe (P5), the first return pipe (P6), the first return pipe (P6) for returning the hot water heat exchanged in the heating module 300 into the heat insulating material 110 or the hot water tank (200) ) Is connected to the second return pipe (P7), the first return pipe (P6) for introducing hot water discharged from the first return pipe (P6) into the endothermic water pipe (P1) inside the heat insulating material (110). And hot water discharged from the first return pipe (P6) and the second return pipe (P7). It may include a third return pipe (P8) for returning to the tank 200 or to return the water of the hot water tank 200 to the endothermic water pipe (P1) through the second return pipe (P7). .
- the hot water supply module is installed on the hot water supply pipe (P3) and is installed on the hot water tank 200 side on the basis of the connection point of the hot water supply pipe (P3) and the second hot water distribution pipe (P6).
- the fourth valve (V5), the temperature sensor 150 installed in the fuel cell module 100, the hot water supply pipe (P3) is installed in the hot water supply pipe (P3) and the second hot water distribution pipe (P5).
- the hot water distribution pump 320 installed in the first hot water distribution pipe (P3), the third return pipe (P8) Including a bidirectional pump 330 is installed in, so that the temperature sensor 150 measures the temperature of the fuel cell module 100 is set the temperature of the fuel cell module 100 Hot water can be controlled by operating each of them when they are above or equal to, below a set threshold, or when no heating is used.
- the hot water supplied from the endothermic water pipe P1 inside the heat insulating material 110 is connected to the hot water supply pipe ( After the P3) and the hot water tank 200 is supplied to the heating module 300, the heat absorbing water pipe inside the heat insulating material 110 through the first return pipe (P6) and the second return pipe (P7). It is controlled to return to P1.
- the hot water supplied from the endothermic water pipe (P1) inside the heat insulating material 110 is the second hot water distribution pipe (P5).
- the first return pipe (P6) and the second return pipe (P7) is controlled to be returned to the endothermic water pipe (P1) inside the heat insulating material (110).
- hot water supplied from the hot water tank 200 is supplied to the heating module 300 through the first hot water distribution pipe P3. After it is controlled to be returned to the hot water tank 200 through the first return pipe (P6) and the third return pipe (P8).
- the heating system using a fuel cell module can be used again in the burner in the fuel cell module 100 passing through the hot water tank 200. It may further include a gas pipe (P9) to be.
- the hot gas generated in the fuel cell stamp 130 may be used to heat the hot water stored in the hot water tank 200 to obtain hot water of a higher temperature.
- gas pipe (P8) is preferably twisted in a coil shape in the hot water tank 200 in order to increase the contact area with the hot water in the hot water tank 200.
- present invention is not limited thereto and may be manufactured in various shapes for widening the contact area.
- the hot gas containing water vapor in the gas pipe (P9) is the hot water tank ( When water vapor cooled in the 200) and the water vapor contained in the hot gas phase changes to water, the water may be separated and discharged from other gases included in the hot gas.
- the reason for separating the steam from the hot gas is that when the hot gas enters the burner inside the fuel cell module 100 and is used to burn fuel, the temperature of the burner if the hot gas contains water vapor.
- the increase is limited, especially when the burner is used as a catalytic burner, which can cause serious damage to the catalyst.
- the condenser 340 is installed and returned to the gas pipe (P9) before passing through the inside of the hot water tank 200 to the burner of the fuel cell module 100 Water vapor may be removed from the hot gas to provide a fuel suitable for burning the burner.
- the heat is transferred to the hot water tank 200 to cool the fuel cell module 100 and also stored in the hot water tank 200. At the same time to send to the heating module 300 to use for heating.
- the hot water tank 200 does not use heat of the fuel cell module 100.
- the hot water distribution pump 320 installed in the first hot water distribution pipe (P4) to supply hot water to the heating module 300, the first return pipe (P6) and the third return pipe (P8). Through the hot water tank 200 can be returned to.
- a capacitor capable of storing extra electricity may be installed to properly balance the amount of electricity generated by the fuel cell module 100 with the heat used for heating.
- a fuel cell module according to another embodiment of the present invention will now be briefly described with reference to FIG. 12.
- the fuel cell module 100 supplies the hot water for connecting the bypass valve V1 to the fuel cell module 100 and the hot water tank 200.
- the water heated by the endothermic water pipe P1 may be supplied to the fuel cell module 100 or the hot water tank 200 according to the operation state of the heating system.
- the hot water tank 200 can be supplied to all.
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Abstract
Description
Claims (18)
- 연료와 공기를 공급받아 전기를 생성하는 고체산화물 연료전지모듈에 있어서,흡열수배관 또는 흡열가스배관에서 각각 예열된 물 또는 연료를 가열하여 스팀화하는 스팀생성기;상기 스팀생성기로부터 공급된 연료를 개질처리하여 수소가스를 정제하는 개질기;상기 개질기에서 공급되는 수소가스와 외부에서 공급되는 공기의 전기화학적 반응에 의하여 전기와 열을 발생시키는 연료전지스택; 및상기 스탬생성기, 개질기, 연료전지스택 외부를 감싸도록 설치되는 단열재를 포함하며,상기 흡열수배관 또는 상기 흡열가스배관은 상기 단열재 내부면을 따라 배치되며, 상기 흡열수배관내 물 또는 상기 흡열가스배관내 연료가 상기 단열재와 열교환하여 예열되고, 상기 스팀생성기와 상기 개질기를 거쳐 상기 연료전지 스택의 발전에 이용되는 연료전지모듈.
- 제 1 항에 있어서,상기 흡열수배관 또는 상기 흡열가스배관이 상기 단열재의 측면을 따라 'ㄹ' 자 형상으로 설치되는 연료전지모듈.
- 제 1 항에 있어서,상기 흡열가스배관이 상기 흡열수배관보다 더 내부에 설치되는 연료전지모듈.
- 제 1 항에 있어서,상기 흡열가스배관이 상기 흡열수배관보다 상기 단열재 내부에서 더 길거나 더 부피가 증가되게 설치되는 연료전지모듈.
- 제 3 항에 있어서,상기 흡열수배관은 상기 단열재가 동일재료의 다층구조로 이루어진 경우 최외층에 배치되는 연료전지모듈.
- 단열재 내부면을 따라 배치되는 흡열수배관내 물 또는 흡열가스배관내 연료를 공급받아 예열된 물 또는 연료와, 외부에서 공급되는 공기의 전기화학적 반응에 의하여 전기와 열을 발생시키는 연료전지모듈; 상기 연료전지모듈의 흡열수배관에 유입된 물과 상기 단열재 내부 사이의 열교환에 의해서 가열된 온수가 저장되는 온수탱크; 상기 연료전지모듈 또는 상기 온수탱크로부터 공급되는 온수가 난방에 이용되는 난방모듈; 및 상기 연료전지모듈의 온도가 기준 설정치를 초과, 동일, 미만, 상기 난방모듈의 가동여부에 따라 상기 연료전지모듈, 상기 온수탱크, 및 상기 난방모듈 사이의 온수 흐름을 제어하는 온수공급모듈을 포함하는 연료전지모듈을 이용한 난방시스템.
- 제 6 항에 있어서,상기 연료전지시스템에서 발생하는 고온의 가스를 상기 온수탱크를 통과하여 다시 상기 연료전지시스템으로 회수하기 위한 가스배관을 더 포함하는 것을 특징으로 하는 연료전지모듈을 이용한 난방시스템.
- 제 7 항에 있어서,상기 온수공급모듈은 상기 단열재 내부에서 열교환하여 온수로 변화된 물을 상기 온수탱크에 공급하는 온수공급배관, 상기 온수탱크에 저장된 온수를 상기 난방모듈로 배급하는 제 1 온수배급배관, 상기 단열재의 내부에서 열교환한 온수를 상기 온수탱크를 거치지 않고 직접 상기 난방모듈로 배급하는 제 2 온수배급배관, 상기 난방모듈에서 열교환한 물을 상기 단열재 내부 또는 상기 온수탱크로 환수하기 위한 제 1 환수배관, 상기 제 1 환수배관과 이어지며 상기 제 1 환수배관에서 배출된 물을 상기 단열재 내부의 상기 흡열수배관으로 유입시키기 위한 제 2 환수배관, 상기 제 1 환수배관 및 상기 제 2 환수배관과 이어지며 상기 제 1 환수배관에서 배출된 물을 상기 온수탱크로 환수시키거나 상기 온수탱크의 물을 상기 제 2 환수배관을 통하여 상기 흡열수배관으로 환수시키기 위한 제 3 환수배관을 포함하는 연료전지모듈을 이용한 난방시스템.
- 제 8 항에 있어서,상기 온수공급모듈은 상기 온수공급배관에 설치되며 상기 온수공급배관과 상기 제 2 온수배급배관의 연결지점을 기준으로 상기 온수탱크 측에 설치되는 제 1 밸브, 상기 제 2 온수배급배관에 설치되는 제 2 밸브, 상기 제 1 환수배관에 설치되는 제 3 밸브, 상기 제 2 환수배관에 설치되는 제 4 밸브, 상기 온수공급배관에 설치되며 상기 온수공급배관과 상기 제 2 온수 배급배관의 연결지점을 기준으로 상기 연료전지모듈 측에 설치되는 온수공급펌프, 상기 제 1 온수배급배관에 설치되는 온수배급펌프, 상기 제 3 환수배관에 설치되는 양방향펌프를 포함하며, 상기 온수공금모듈은 상기 연료전지모듈의 내부에 설치되는 온도센서에 의해서 측정되는 온도에 따라 제어되는 연료전지모듈을 이용한 난방시스템.
- 제 7 항에 있어서,상기 연료전지시스템에서 발생하는 고온의 가스를 상기 온수탱크를 통과하여 다시 상기 연료전지시스템으로 회수하기 위한 가스배관을 더 포함하는 것을 특징으로 하는 연료전지모듈을 이용한 난방시스템.
- 제 10 항에 있어서,상기 가스배관은 상기 온수탱크의 내부에서 코일 형상으로 꼬여있는 것을 특징으로 하는 연료전지모듈를 이용한 난방시스템.
- 제 10 항에 있어서,상기 가스배관과 상기 연료전지모듈 사이에 상기 고온의 가스로부터 물을 분리하여 배출하도록 응축기를 더 포함하는 연료전지모듈을 이용한 난방시스템.
- 제 10 항에 있어서,상기 연료전지모듈과 상기 온수탱크를 연결하는 상기 온수공급배관상에 바이패스밸브를 포함하여 상기 흡열수배관에 의하여 가열된 물을 상기 연료전지모듈 또는 상기 온수탱크로 공급하는 연료전지모듈을 이용한 난방시스템.
- 단열재 내부면을 따라 배치되는 흡열수배관내 물 또는 흡열가스배관내 연료를 공급받아 예열된 물 또는 연료와, 외부에서 공급되는 공기의 전기화학적 반응에 의하여 전기와 열을 발생시키는 연료전지모듈; 상기 연료전지모듈의 흡열수배관에 유입된 물과 상기 단열재 내부 사이의 열교환에 의해서 가열된 온수가 저장되는 온수탱크; 상기 연료전지모듈 또는 상기 온수탱크로부터 공급되는 온수가 난방에 이용되는 난방모듈; 및 상기 연료전지모듈의 온도가 기준 설정치를 초과, 동일, 미만, 상기 난방모듈의 가동여부에 따라 상기 연료전지모듈, 상기 온수탱크, 및 상기 난방모듈 사이의 온수 흐름을 제어하는 온수공급모듈을 포함하는 연료전지모듈을 이용한 난방시스템의 제어방법에 있어서,상기 온도공급모듈은, 상기 온도센서의 온도가 설정 기준치를 초과할 때에는 상기 단열재 내부의 상기 흡열수배관에서 공급되는 온수가 상기 온수공급배관과 상기 온수탱크를 거쳐 상기 난방모듈에 공급된 후 상기 제 1 환수배관과 상기 제 2 환수배관을 통하여 상기 흡열수배관으로 환수되도록 제어하는 연료전지모듈을 이용한 난방시스템의 제어방법
- 제 14 항에 있어서,상기 온도공급모듈은, 상기 온도센서의 온도가 설정 기준치와 동일한 때에는 상기 단열재 내부의 상기 흡열수배관에서 공급되는 온수가 상기 제 2 온수배급배관을 통하여 직접 상기 난방모듈에 공급된 후 상기 제 1 환수배관과 상기 제 2 환수배관을 통하여 상기 단열재 내부의 흡열배관으로 환수되도록 제어하는 연료전지모듈을 이용한 난방시스템의 제어방법.
- 제 14 항에 있어서,상기 온수공급모듈은, 상기 온도센서의 온도가 설정 기준치 미만일 때에는 상기 온수탱크에서 공급되는 온수가 상기 제 1 온수배급배관을 통하여 상기 난방모듈에 공급된 후 상기 제 1 환수배관과 상기 제 3 환수배관을 통하여 상기 온수탱크로 환수되도록 제어하는 연료전지모듈을 이용한 난방시스템의 제어방법.
- 제 14 항에 있어서,상기 난방모듈을 사용하지 않는 경우, 상기 온수공급모듈은, 상기 온수탱크에 저장된 온수의 가온을 위하여 상기 단열재 내부의 흡열배관에서 공급되는 온수를 상기 온수공급배관을 거쳐 상기 온수탱크에 공급한 후 상기 제 3 환수배관과 상기 제 2 환수배관을 통하여 상기 단열재 내부의 흡열수배관으로 환수되도록 제어하는 연료전지모듈을 이용한 난방시스템의 제어방법.
- 제 14 항에 있어서,상기 연료전지모듈이 장시간 작동하여 상기 연료전지모듈의 온도가 기준 설정치보다 고온인 경우에 상기 연료전지모듈과 상기 온수탱크를 연결하는 상기 온수공급배관상에 바이패스밸브를 개방하여 상기 흡열수배관에 의하여 가열된 물을 상기 연료전지모듈 또는 상기 온수탱크로 공급하는 연료전지모듈을 이용한 난방시스템의 제어방법.
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EP15810891.0A EP3163660A4 (en) | 2014-06-26 | 2015-05-18 | Fuel cell module having increased thermal efficiency, and heating system using same and control method thereof |
JP2016573068A JP2017527945A (ja) | 2014-06-26 | 2015-05-18 | 熱効率が増加した燃料電池モジュール、これを用いた暖房システムおよびその制御方法 |
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KR1020140079134A KR20160007749A (ko) | 2014-06-26 | 2014-06-26 | 가스예열에 의하여 열효율이 증가된 연료전지 |
KR10-2014-0079134 | 2014-06-26 | ||
KR1020140079133A KR101589178B1 (ko) | 2014-06-26 | 2014-06-26 | 연료전지를 이용한 난방장치 |
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