IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0933103
(2013-07-01)
|
등록번호 |
US-8715869
(2014-05-06)
|
우선권정보 |
JP-2002-350541 (2002-12-02); JP-2002-350546 (2002-12-02) |
발명자
/ 주소 |
- Matsubayashi, Takaaki
- Karakane, Mitsuo
- Yoshimoto, Yasunori
- Hamada, Akira
|
출원인 / 주소 |
- JX Nippon Oil & Energy Corporation
|
대리인 / 주소 |
McDermott Will & Emery LLP
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
6 |
초록
▼
A fuel cell, a method for operating a fuel cell and a fuel cell system, which ensure no dew condensation for a wet reaction gas in the inlet area of gas channels in plates in a fuel cell stack, are provided. Gas channels 2 and heat medium channels are disposed on one surface and the other surface of
A fuel cell, a method for operating a fuel cell and a fuel cell system, which ensure no dew condensation for a wet reaction gas in the inlet area of gas channels in plates in a fuel cell stack, are provided. Gas channels 2 and heat medium channels are disposed on one surface and the other surface of one plate 1, respectively. Gas channels are disposed on the other plate such that they face the gas channels 2 in the plate 1. A gas inlet header 3 is disposed at the upper part of the gas channel 2 in the plate 1 and a heat medium inlet header is disposed at the upper part of the heat medium channels such that they face the gas inlet header on the other side. Cooling water such as heat medium is supplied from the heat medium supply manifold hole 7 to the heat medium inlet header, thereby warming up the same. The water vapor in the reaction gas (wet fuel gas) is prevented from being condensed in the inlet area of the gas channels 2 by heating up the gas inlet header by the heat conduction.
대표청구항
▼
1. A fuel cell system comprising: a fuel cell comprising: a plurality of membrane-electrode assemblies each structured such that an anode bonded to a first surface of an electrolyte membrane and a cathode bonded to a second surface, opposite to the first surface, of the electrolyte membrane,a plural
1. A fuel cell system comprising: a fuel cell comprising: a plurality of membrane-electrode assemblies each structured such that an anode bonded to a first surface of an electrolyte membrane and a cathode bonded to a second surface, opposite to the first surface, of the electrolyte membrane,a plurality of plates each having at least one path of a fuel gas path for supplying fuel gas to the anode, an oxidant gas path for supplying oxidant gas to the cathode and a heat medium path for flowing a first heat medium,a heat medium supply inlet, anda heat medium discharge outlet;a fuel humidifier;an oxidant humidifier,a heat exchanger for heat-exchanging the first heat medium with a second heat medium;wherein the fuel gas and the oxidant gas flow parallel to each other and the heat medium flows in the direction parallel to both the fuel gas and the oxidant gas in the fuel cell, andwherein the heat medium discharge outlet is connected to the heat exchanger, the heat exchanger is connected to the any one of the fuel humidifier and the oxidant humidifier, the any one of the fuel humidifier and the oxidant humidifier is connected to the other one of the fuel humidifier and the oxidant humidifier, the other one of the fuel humidifier and the oxidant humidifier is connected to the heat medium supply inlet to form a circulation path for the heat medium heat-exchanging at the fuel cell, the fuel humidifier, the oxidant humidifier and the heat exchanger. 2. The fuel cell system according to claim 1, wherein first heat medium discharged from the fuel cell and flown to the heat exchanger, the oxidant humidifier and the fuel humidifier in the order returns to the fuel cell. 3. The fuel cell system according to claim 1, wherein the fuel cell system further comprises a total heat-exchanger, the total heat-exchanger having a first supply inlet for a first fluid, a second supply inlet for a second fluid, a first fluid discharge outlet for the first fluid and a second fluid discharge outlet for the second fluid, and wherein the fuel gas is supplied to the first supply inlet of the total heat-exchanger, the fuel humidifier is connected to the first fluid discharge outlet, the fuel gas supply inlet of the fuel cell is connected to the fuel humidifier, the second fluid supply inlet is connected to the fuel gas discharge outlet of the fuel cell, and the fuel gas is discharged from the second fluid discharge outlet of the total heat-exchanger, to form a fuel gas path. 4. The fuel cell system according to claim 2, wherein the fuel cell system further comprises a total heat-exchanger, the total heat-exchanger having a first supply inlet for a first fluid, a second supply inlet for a second fluid, a first fluid discharge outlet for the first fluid and a second fluid discharge outlet for the second fluid, and wherein the fuel gas is supplied to the first supply inlet of the total heat-exchanger, the fuel humidifier is connected to the first fluid discharge outlet, the fuel gas supply inlet of the fuel cell is connected to the fuel humidifier, the second fluid supply inlet is connected to the fuel gas discharge outlet of the fuel cell, and the fuel gas is discharged from the second fluid discharge outlet of the total heat-exchanger, to form a fuel gas path. 5. The fuel cell system according to claim 1, wherein the fuel cell system further comprises a total heat-exchanger, the total heat-exchanger having a first supply inlet for a first fluid, a second supply inlet for a second fluid, a first fluid discharge outlet for the first fluid and a second fluid discharge outlet for the second fluid, and wherein the oxidant gas is supplied to the first supply inlet of the total heat-exchanger, the oxidant humidifier is connected to the first fluid discharge outlet, the oxidant gas supply inlet of the fuel cell is connected to the oxidant humidifier, the second fluid supply inlet is connected to the oxidant gas discharge outlet of the fuel cell, and the oxidant gas is discharged from the second fluid discharge outlet of the total heat-exchanger, to form an oxidant gas path. 6. The fuel cell system according to claim 2, wherein the fuel cell system further comprises a total heat-exchanger, the total heat-exchanger having a first supply inlet for a first fluid, a second supply inlet for a second fluid, a first fluid discharge outlet for the first fluid and a second fluid discharge outlet for the second fluid, and wherein the oxidant gas is supplied to the first supply inlet of the total heat-exchanger, the oxidant humidifier is connected to the first fluid discharge outlet, the oxidant gas supply inlet of the fuel cell is connected to the oxidant humidifier, the second fluid supply inlet is connected to the oxidant gas discharge outlet of the fuel cell, and the oxidant gas is discharged from the second fluid discharge outlet of the total heat-exchanger, to form an oxidant gas path.
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