| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system whose reverse power flow can be prevented continuously and whose surplus power can be utilized continuously. <P>SOLUTION: The fuel cell system comprises : a fuel cell 1 ; a thermal storage unit 2 which stores heat using water as medium ; a heat exchanger 3 which mediates heat exchanging between the fuel cell 1 and the thermal storage unit 2 using heat transfer medium which circulates a prescribed circumferential path 4, wherein the heat exchanger 3 exchanges the heat with the fuel cell 1 via the heat transfer medium at the first heat exchanging section 5 in the circumferential path 4 and exchanges the heat via the heat transfer medium with the thermal storage unit 2 at the second heat exchanging section 6 in the circumferential path 4. A heating unit 7 to heat the heat transfer medium and a cooling unit 8 to cool the heat transfer medium, which are operated by power generated in the fuel cell 1, are disposed in the circumferential path 4. <P>COPYRIGHT: (C)2004,JPO |
