| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system whose energy efficiency is good and whose fuel cell temperature is set at desired temperature without requiring a large capacity battery. <P>SOLUTION: Hydrogen gas is supplied to a hydrogen storage alloy tank 300 from a high-pressure hydrogen tank 100, and the hydrogen gas is absorbed in the hydrogen storage alloy tank 300. As the hydrogen storage alloy tank 300 generates heat by absorbing the hydrogen gas, the heat generated is conveyed to the fuel cell 200 by cooling water which circulates between the hydrogen storage alloy tank 300 and the fuel cell 200. Thereby the temperature of the fuel cell 200 is raised. The hydrogen gas supplying to the hydrogen storage alloy tank 300 is stopped at the timing that the temperature Tw of the cooling water reaches supplying stop temperature Ttag before reaching the warming-up level temperature Ttag, supplying quantity of the hydrogen gas to the hydrogen storage alloy tank 300 can be reduced comparing to a case that the hydrogen gas is supplied continuously to the hydrogen storage alloy tank 300 until temperature Tw of the cooling water reaches warming-up level temperature Ttag. <P>COPYRIGHT: (C)2004,JPO |
