WO2004109831A1 - 燃料電池システム、燃料電池システムの発電方法、及び電気機器 - Google Patents
燃料電池システム、燃料電池システムの発電方法、及び電気機器 Download PDFInfo
- Publication number
- WO2004109831A1 WO2004109831A1 PCT/JP2004/007782 JP2004007782W WO2004109831A1 WO 2004109831 A1 WO2004109831 A1 WO 2004109831A1 JP 2004007782 W JP2004007782 W JP 2004007782W WO 2004109831 A1 WO2004109831 A1 WO 2004109831A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- heat
- cell system
- temperature
- fuel
- Prior art date
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Definitions
- the present invention relates to a fuel cell system that performs temperature adjustment using heat generated from electric equipment, a power generation method for a fuel cell system, and electric equipment. More specifically, a fuel cell system capable of efficiently using electric energy by using heat generated from a heat source and increasing the power generation efficiency of a fuel cell, a power generation method of a fuel cell system, and Related to electrical equipment. Background art
- the heat generated by the heat generated by such a semiconductor device is forcibly cooled by using a cooling device such as a heat sink or a cooling fan, for example, and the temperature rise in the computer is suppressed.
- a heat source such as various electronic components constituting an electric circuit provided in the electric device may be cooled by using a cooling device such as a heat sink cooling fan.
- the present invention is not limited to electronic devices such as computers, and suppression of temperature rise of various electric devices including electronic devices is an important technique for stable driving of electric devices.
- the heat generated in the electric device described above is exhausted to the outside of the electric device by forcibly cooling the heat source.
- Such heat is obtained by converting electric energy into heat energy at a rate proportional to the power consumption of semiconductor devices, other electronic components, and the like as heat sources.
- Such power consumption is unavoidable in practical use of electric equipment, and the heat energy that is exhausted is regarded as energy loss that does not contribute to driving the electric equipment.
- power for driving the cooling device is required to cool the above-mentioned heat source, and the power consumed by the cooling device is a considerable energy loss with respect to the power supplied from the power supply. .
- the present invention provides a fuel cell system capable of efficiently using electric energy by utilizing heat generated from a heat source and improving the power generation efficiency of a fuel cell, a power generation method of the fuel cell system, and The purpose is to provide electrical equipment. Disclosure of the invention
- a fuel cell system includes: a fuel cell; and a temperature adjusting unit that adjusts the temperature of the fuel cell by transferring heat from a heat source included in an electric device to the fuel cell. .
- heat is transferred from the heat source to the fuel cell.
- heat energy that has been exhausted can be used, and energy loss can be reduced.
- the temperature of the fuel cell can be adjusted to a temperature suitable for power generation by the heat energy of the heat source, the power generation efficiency of the fuel cell can be improved.
- the temperature adjusting means may be a heat transfer path for transmitting a required amount of heat.
- the temperature of the fuel cell can be adjusted via the fluid by using the heat transfer path as a flow path of a fluid that mediates the heat transfer.
- a flow path may be formed close to a heat sink that receives heat from the heat source. Since the flow path is close to the heat sink, heat can be efficiently transferred to the flow path.
- the fluid may be at least one of a fuel fluid and an oxidizing fluid used for performing the power generation, and the temperature of at least one of the fuel fluid and the oxidizing fluid is adjusted to a temperature suitable for the power generation reaction. be able to.
- the fuel cell system according to the present invention may further include a reformer, and the temperature of the reformer and the fuel can be adjusted by the heat transfer by the temperature adjusting unit. Thereby, the reforming of the fuel used for the power generation reaction of the fuel can be efficiently performed.
- the fuel cell system according to the present invention may further include a vaporizer, and the temperature of the vaporizer and the fuel can be adjusted by the heat transfer by the temperature adjusting unit. Therefore, the heat of the heat source can be used as heat energy required for fuel vaporization, and energy loss can be reduced.
- the fuel cell system according to the present invention may further include a heat exhaust unit that exhausts an excessive amount of heat transferred to the fuel cell.
- a heat exhaust unit that exhausts an excessive amount of heat transferred to the fuel cell.
- the exhaust means may be configured to exhaust the excess amount of heat. It can be a heat path.
- the temperature of the fluid can be adjusted by using the exhaust heat path as a fluid flow path for transmitting the excess amount of heat, so that the temperature of the fuel cell can be adjusted efficiently.
- a flow path may be formed so as to be close to a heat sink provided outside the fuel cell. Since the flow path is close to the heat sink, heat can be efficiently exhausted from the flow path.
- heat is transferred from a heat source included in an electric device to a fuel cell system including a fuel cell, and power generation is performed by adjusting the temperature of the fuel cell system by the heat transfer. It is characterized by ADVANTAGE OF THE INVENTION According to the power generation method of the fuel cell system according to the present invention, by transferring heat from the heat source to the fuel cell, it is possible to use the heat energy that has been exhausted so far, and to reduce energy loss. it can. Further, since the temperature of the fuel cell can be adjusted to a temperature suitable for power generation by the heat energy of the heat source, the power generation efficiency of the fuel cell can be improved.
- An electric device includes a heat source, a housing for accommodating the heat source, a fuel cell, and temperature adjusting means for adjusting the temperature of the fuel cell by transferring heat from the heat source.
- a fuel cell system and is driven by being supplied with electric power from the fuel cell system.
- ADVANTAGE OF THE INVENTION According to the electric apparatus concerning this invention, while being able to utilize the thermal energy of a heat source efficiently, the power generation efficiency of the fuel cell used as a power supply can be raised. As a result, the energy loss of the entire electric device can be reduced, and the power consumption of the electric device can be reduced.
- the fuel cell system may be integrated with the housing by incorporating the fuel cell system into the housing.
- FIG. 1 is a configuration diagram showing an electric device according to an embodiment of the present invention.
- FIG. 2 is a view for explaining a state in which the flow path 2OA in the present embodiment is heated.
- FIG. 3 is a view for explaining a state in which heat is radiated from the flow path 20E in the present embodiment.
- FIGS. 1 to 3 a fuel cell system, a power generation method of the fuel cell system, and electric equipment according to the present invention will be described with reference to FIGS. 1 to 3.
- the fuel cell system, the power generation method of the fuel cell system, and the electric device according to the present embodiment are merely examples, and within the scope of the spirit of the present invention, these fuel cell systems, the power generation method of the fuel cell system, It goes without saying that,, and electrical equipment can be changed for convenience.
- FIG. 1 is a configuration diagram showing a computer 10 according to the present embodiment.
- the computer 10 includes a CPU (Central Processing Unit) 11 and a fuel cell system 1 that supplies electric power for driving the CPU 11. 9, and a housing 12 for accommodating them. Note that the computer 10 and the fuel cell system 19 are housed in the housing 12 to be integrated.
- CPU Central Processing Unit
- C PU 1 1 is a semiconductor devices that operate from the fuel cell system 1 9 supplied with electric power, c that is, heat generation occurred energy loss at the time of operation, C PU 1 1 is actuated by the computer 1 within 0 By doing so, it is a heat source that generates heat that causes the temperature inside the computer 10 to rise.
- the heat source is not limited to semiconductor devices such as the CPU 11; for example, a data processing system for computer graphics, which processes a large amount of data. Various electronic components constituting the system may be used.
- the heat source may be a north bridge that controls the CPU 11, memory, graphics card, and the like.
- the heat source is not limited to the above-mentioned electronic components as long as it generates heat by being mounted on and driven by an electric device such as the computer 10, but the heat source is particularly large. Is preferred.
- heat sources other than the CPU 11 are not shown. Although only one heat source such as the CPU 11 is shown in the figure, a plurality of electronic components as heat sources may be provided in the computer 10 in various types. It may be a part.
- the fuel cell system 19 is a power supply that supplies drive power to the CPU 11, and includes a fuel pump 21, air blowers 22, 31, water pumps 23, 33, carburetor 24, and reforming It consists of a unit 25, a carbon monoxide remover 26, a fuel cell 27, a moisture separator 32, and heat sinks 41, 42.
- the fuel pump 21, the air blowers 22 and 31, and the water pumps 23 and 31 may be mounted on the computer 10 as in the present embodiment, or may be arranged outside the computer 10. You can also put it. If the fuel pump 21, the air blowers 22, 31, and the water pumps 23, 33 mounted on the computer 10 are sufficiently small and lightweight, the portability of the computer 10 can be improved. It doesn't hurt.
- the fuel pump 21 supplies fuel to the carburetor 24.
- Hydrocarbon such as methanol can be used as fuel, and hydrogen is extracted through a vaporizer 24, a reformer 25, and a carbon monoxide remover 26, and the hydrogen is supplied to a fuel cell 27. Power is generated.
- the fuel supplied from the fuel pump 21, the water supplied from the water pump 23, and the air supplied from the air blower 22 are supplied to the carburetor 24 via the flow path 20A.
- flow path 2 OA is one Although the flow path is illustrated in the drawing, separate flow paths may be provided for each of fuel, water, and air.
- the heat sink 41 heats or keeps fuel, water, and air at a predetermined temperature via the flow path 2OA. In order to react the fuel with water in the reformer 25 to extract hydrogen, it is necessary to maintain the temperature of the fuel gas and steam at, for example, about 250 ° C to 300 ° C.
- the heat sink 41 supplies heat received from the CPU 11 to the fuel, water and air to maintain or increase the temperature of the fuel, water and air supplied to the carburetor 24.
- FIG. 2 is a view for explaining a state in which heat is transferred from the heat sink 41 to the flow path 2OA.
- the heat sink 41 has a plurality of ridges 41a whose longitudinal directions are substantially parallel, and the flow path 2OA can be disposed so as to meander between the ridges 41a.
- the fuel flowing from the inlet of the heat sink 41 through the flow path 20 A flows in a meandering manner between the ridges 41 a provided on the heat sink 41, and heat flows from the ridge 41 a while flowing. Is received and heated or kept warm, and is sent from the outlet side of the heat sink 41 to the vaporizer 24 via the flow path 2 OA.
- the flow path 20A is a temperature adjusting means for adjusting the temperature of the fluid flowing through the flow path 20A by receiving heat from the CP U1 via the heat sink 41.
- a temperature adjusting means can adjust the temperature of the fluid by forming a heat transfer path for transmitting heat, and further adjust the temperature of the fuel cell system 19 via the fluid.
- the flow path 2OA is not limited to the above-described structure, and may be formed inside the heat sink 41, or may be a structure in which the flow path 2OA is integrated inside the heat sink 41.
- the ridge 41 a provided on the heat sink 41 and the flow path 20 A can be made close to each other, an area where the ridge 41 a and the flow path 2 OA are close to each other. And the heat can be efficiently transferred from the heat sink 41 to the flow path 2 OA. Therefore, the heat energy of the CPU 11, which has not been used by exhausting heat conventionally, can be used for adjusting the temperature of the fuel without separately driving the heater for temperature adjustment. Further, by increasing the temperature of the fuel flowing through the flow path 20 A, the output of the heater provided in the carburetor 24 can be reduced all at once, and the carburetor is used to vaporize the fuel. The amount of heat supplied to the fuel from 24 can also be reduced. By changing the number of the ridges 41a provided on the heat sink 41, it is also possible to adjust the amount of heat supplied to the flow path 20A.
- the vaporizer 24 evaporates the fuel and water by heating them, and sends the fuel gas, steam, and air to the reformer 25.
- the heat generated by the heat source such as the CPU 11 is not exhausted to the outside of the computer 10, and the vaporizer 24 is heated by the CPU 11 to heat the fuel gas, steam, and air.
- the CPU 11 and the vaporizer 24 may be brought into direct contact with each other, or the heat transfer may be performed efficiently.
- the CPU 11 and the vaporizer 24 may be arranged close to each other.
- a heat transfer path may be formed by directly contacting the CPU 11 and the vaporizer 24, or the CPU 11 and the vaporizer 24 may be arranged in a state in which the CPU 11 and the vaporizer 24 are arranged close to each other. Heat can be transferred using the space between 11 and the vaporizer 24 as a heat transfer path.
- the amount of heat transferred by the CPU 11 and the rate of the carburetor 24 may be adjusted to adjust the temperature of the carburetor 24, and the temperature of the carburetor 24 may be monitored to reduce the amount of heat transfer. It may be adjusted.
- the reformer 25 takes out hydrogen by reacting water and fuel supplied through the flow path 20B.
- the heat is supplied from the CPU 11 to the reformer 25, and this heat is It can be used to adjust the temperature of heat.
- the CPU 11 and the reformer 25 may be brought into direct contact with each other, or heat transfer may be performed efficiently.
- the CPU 11 and the reformer 25 may be arranged close to each other. That is, a heat transfer path may be formed by directly contacting the CPU 11 and the reformer 25, or in a state where the CPU 11 and the reformer 25 are arranged close to each other.
- Heat can be transferred using the space between the CPU 11 and the reformer 25 as a heat transfer path. Further, the amount of heat transferred may be adjusted by the layout of the CPU 11 and the reformer 25 to adjust the temperature of the reformer 25, and the temperature of the reformer 25 may be monitored. Then, the heat transfer amount may be adjusted. In other words, it is possible to adjust the temperature of fuel and water without separately driving the heater for temperature adjustment, and to reuse the heat energy of the CPU 11, which had not been used by exhausting heat in the past. Can be.
- the reformer 25 is provided with the hydrogen removed by the reformer 25 and the carbon monoxide remover 26 generated when the hydrogen is removed to the carbon monoxide remover 26 via a flow path 20C. send.
- the carbon monoxide remover 26 removes carbon monoxide generated together with the hydrogen extracted by the reformer 25, and supplies hydrogen to the fuel cell 27 through the flow path 20D.
- the flow path 20D may be passed through a heat sink that receives heat from the CPU 11 to heat the hydrogen to a predetermined temperature and then supply the hydrogen to the fuel cell 27.
- the fuel cell 27 generates power by reacting the air supplied from the air blower 31 with the hydrogen supplied via the flow path 20D.
- the power generator provided in the fuel cell 27 has a conductive membrane such as a solid polymer conductive membrane
- the water supplied from the water pump 33 keeps the conductive membrane in an appropriate moisture absorbing state to generate power. Be done.
- air from the air blower 31 to the fuel cell 27 A heat sink can be arranged in a flow path for supplying air, and heat can be transferred from the CPU 11 to the air flow path by the heat sink.
- a heat source such as the CPU 11 may be disposed so as to be in direct contact with the fuel cell 27, and heat may be directly transferred from the CPU 11 to the fuel cell 27, or the fuel cell 27 and the CPU It is also possible to adjust the amount of heat transferred by arranging 11 and 1 close to each other to adjust the temperature of the fuel cell 27. That is, the arrangement of the CPU 11 serving as a heat source and the fuel cell 27 and the air supplied to the fuel cell 27 transfer heat generated by the CPU 11 to the fuel cell 27.
- the power generation efficiency can be increased, the conventional waste heat which do C PU 1 1 heat was is to be effectively utilized to enhance the power generation efficiency of the fuel cell 2 7 t addition, conventionally, in C PU 1 1 Since the cooling fan provided to exhaust the generated heat is not driven, the power generated by the fuel cell 27 can be efficiently used as the power for driving the computer 10. It is possible to effectively use the energy that has been wasted by being discharged outside the computer 10.
- the computer 10 may or may not be provided with a cooling device such as a cooling fan. When a cooling device is provided in the computer 10, whether or not the cooling device is driven may be controlled.
- the temperature of the power generator can be adjusted by adjusting the temperature of the fuel cell 27.
- Unreacted fuel gas when power is generated in the fuel cell 27 is sent to the vaporizer 24 again via the flow path 20E.
- the flow path 20E receives the heat of the CPU 11 via the heat sink 42, and the unreacted fuel gas is sent to the vaporizer 24 in a state where the temperature is adjusted.
- the heat sink 4 2 not only controls the temperature of the unreacted fuel gas due to the transfer of heat from the CPU 11, but also controls the unreacted fuel gas and the fuel cell 2 7
- a cooling device for cooling the air discharged from the cooling device may be provided. Further, by arranging a cooling device on the heat sink 42, it is possible to perform the optimal temperature control for the unreacted fuel described above.
- FIG. 3 is a view for explaining a state in which heat is radiated from the flow path 20E via the heat sink 42.
- the heat sink 42 has a plurality of ridges 42 a that are substantially parallel in the longitudinal direction, and the flow path 20 E can be arranged so as to meander between the ridges 42 a. . That is, the unreacted fuel gas flowing from the inlet of the heat sink 42 through the flow path 20 E is protruded while meandering and flowing between the ridges 42 a provided on the heat sink 42.
- the heat is cooled by radiating heat from the ridges 42 a, and the flow path 20 E is sent to the vaporizer 24 from the outlet side of the heat sink 42.
- the ridges 42 a provided on the heat sink 42 and the flow path 20 E can be brought close to each other, and the region where the ridges 42 a and the flow path 20 E come close to each other can be formed.
- the heat can be efficiently radiated from the heat sink 42 to the flow path 20E. Therefore, the flow path 20E is a heat discharging means for discharging heat from the unreacted fuel gas flowing through the flow path 20E, and the flow path 20E discharges heat from the unreacted fuel gas. Construct a heated exhaust heat path. Heat storage in the fuel cell system 19 due to the power generation reaction can be suppressed. This makes it possible to suppress the temperature rise of the fuel cell 27.
- Fuel cell 2 By suppressing the temperature rise of the fuel cell 27, the humidity of the conductive film constituting the power generator included in the fuel cell 27 can be maintained in a state suitable for the power generation reaction. Further, by radiating heat through the fuel, it is possible to adjust the temperature of the fuel cell 27 so as to be a temperature suitable for a power generation reaction, thereby increasing power generation efficiency. Further, the temperature is not limited to the flow path 20E, and the temperature of the fluid flowing through these flow paths may be adjusted by radiating heat from the flow paths 20A to 20D to adjust the temperature of the fuel cell 27. It is possible. Therefore, by adjusting the temperature of the fuel gas flowing through the fuel cell system 19, the hydrogen extracted from the fuel, and the temperature of the air, the temperature of the fuel cell system 19 can be adjusted.
- the reaction efficiency for taking out the fuel and further increase the efficiency of the power generation reaction performed in the fuel cell 27.
- the fuel cell is separately driven by the cooling device driven to discharge the heat from the CPU 11.
- the power generated by the fuel cell system 19 is not consumed, and the power consumed by peripheral devices for generating power by the fuel cell system 19 can be reduced. Therefore, the electric power generated by the fuel cell 27 can be effectively used by electric equipment such as the computer 10, and the power generation efficiency of the fuel cell 27 can be increased.
- the water contained in the air discharged from the fuel cell 27 is separated by the steam separator 32 and sent to the water pump 33 to be used again to maintain the humidity of the fuel cell 27. . Air containing almost no oxygen is exhausted from the steam separator 32 to the outside.
- heat generated by a heat source such as the CPU 11 provided in the computer 10 is transferred to the fuel cell. Used for system 1 9 It can be used to heat or keep warm the fuel, water and air that are supplied. This makes it possible to extract hydrogen from fuel without providing a separate heater for temperature adjustment. Further, since the temperature of the fuel cell 27 can be adjusted, the fuel cell 27 can be maintained at a temperature suitable for power generation. Heat generated by a heat source such as the CPU 11 has conventionally caused an excessive rise in the temperature of the fuel cell system 19, but this heat is used for adjusting the temperature of the fuel cell system 19. By using the fuel cell, smooth power generation can be performed without separately driving the cooling device of the fuel cell 27. Therefore, it is possible to reduce the wasteful energy that has been conventionally discharged by the electric device such as the computer 10 and to increase the power generation efficiency of the fuel cell 27.
- the computer 10 has been described as an example of the electric apparatus.
- the electric apparatus according to the present invention is not limited to the computer, but may be a projection apparatus such as a projector.
- good c projector one device also includes a lamp as a light source, since the lamp which may be hot in the lighting state, the heat generated from the lamp by utilizing the adjustment of the temperature of the fuel cell system
- the waste energy conventionally discharged as heat energy can be effectively used, and when the fuel cell is used as a power source to drive the projector, the power generation efficiency of the fuel cell is increased. be able to.
- the heat of the heat source provided in the electric device is used for heating the fuel or keeping the heat. be able to. Therefore, even when fueling a hydrocarbon such as methanol, it is possible to efficiently generate hydrogen used directly in the power generation reaction, and to waste heat conventionally. As a result, it is possible to effectively use waste energy, which has been regarded as energy loss that does not contribute to driving of electric devices.
- the peripheral components of the fuel cell and other fuel cell systems are generated by the heat of the heat source provided in the electric device. It can be used to adjust the temperature of the device, and it is possible to adjust the fuel cell system to a temperature suitable for power generation without providing a separate heater for temperature adjustment. It is also possible to cool the fuel through the fuel flow path and discharge excess heat to the outside. The combination of heating, warming and cooling of the fuel cell system makes the fuel cell system suitable for power generation. It is possible to maintain the temperature and increase the power generation efficiency.
- the power generation method of the fuel cell system, and the electric equipment according to the present invention since a cooling device for cooling a heat source is not required, the conventional device consumes power for driving the cooling device.
- the power generated by the fuel cell system can be reduced, and the power generated by the fuel cell system can be efficiently used as power for driving electric equipment.
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- Engineering & Computer Science (AREA)
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- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/550,841 US20070042246A1 (en) | 2003-06-05 | 2004-05-28 | Fuel cell system, power generation method of fuel cell system, and electric device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003160850A JP4816854B2 (ja) | 2003-06-05 | 2003-06-05 | 燃料電池システム及び電気機器 |
JP2003-160850 | 2003-06-05 |
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WO2004109831A1 true WO2004109831A1 (ja) | 2004-12-16 |
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PCT/JP2004/007782 WO2004109831A1 (ja) | 2003-06-05 | 2004-05-28 | 燃料電池システム、燃料電池システムの発電方法、及び電気機器 |
Country Status (3)
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US (1) | US20070042246A1 (ja) |
JP (1) | JP4816854B2 (ja) |
WO (1) | WO2004109831A1 (ja) |
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JP2007087701A (ja) * | 2005-09-21 | 2007-04-05 | Nec Corp | 電子機器および燃料電池の起動方法 |
JP4876648B2 (ja) * | 2006-03-16 | 2012-02-15 | カシオ計算機株式会社 | 気化装置 |
US9089077B2 (en) * | 2011-06-27 | 2015-07-21 | Bloom Energy Corporation | Energy center |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002151638A (ja) * | 2000-11-08 | 2002-05-24 | Hitachi Ltd | 電子機器の冷却装置 |
JP2002231290A (ja) * | 2001-01-26 | 2002-08-16 | Toyota Central Res & Dev Lab Inc | 燃料電池システム |
JP2004047380A (ja) * | 2002-07-15 | 2004-02-12 | Sony Corp | 燃料電池及び電子機器装置 |
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US7017792B2 (en) * | 2001-02-02 | 2006-03-28 | Mitsubishi Heavy Industries, Ltd. | Integrated piping plate, machining method for same, machining apparatus for same, and machining equipment for same |
US6649290B2 (en) * | 2001-05-11 | 2003-11-18 | Cellex Power Products, Inc. | Fuel cell thermal management system and method |
US6588907B1 (en) * | 2002-08-26 | 2003-07-08 | Hewlett-Packard Development Company, L.P. | Self-contained cool-down system for a video projector |
-
2003
- 2003-06-05 JP JP2003160850A patent/JP4816854B2/ja not_active Expired - Fee Related
-
2004
- 2004-05-28 US US10/550,841 patent/US20070042246A1/en not_active Abandoned
- 2004-05-28 WO PCT/JP2004/007782 patent/WO2004109831A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002151638A (ja) * | 2000-11-08 | 2002-05-24 | Hitachi Ltd | 電子機器の冷却装置 |
JP2002231290A (ja) * | 2001-01-26 | 2002-08-16 | Toyota Central Res & Dev Lab Inc | 燃料電池システム |
JP2004047380A (ja) * | 2002-07-15 | 2004-02-12 | Sony Corp | 燃料電池及び電子機器装置 |
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US20070042246A1 (en) | 2007-02-22 |
JP4816854B2 (ja) | 2011-11-16 |
JP2004362972A (ja) | 2004-12-24 |
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