| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system which can precisely control an operational condition of a humidifier. <P>SOLUTION: In a cathode side of a fuel cell stack 22, a humidifier 54, which makes a hydro-conversion between an exit side oxidation gas flowing through an exit side passage from the fuel cell stack 22 and an entrance side oxidation gas flowing to the fuel cell stack 22 through an entrance side passage via an ACP 48, is provided with an entrance side heater/cooling unit 50 on an ACP side of the entrance side passage of the humidifier 54, and an exit side heater/cooling unit 52 is provided on a side of the fuel stack 22 of the exit side passage of the humidifier 54. And, if a humidity of an oxidation gas to be supplied to the cathode side entrance of the fuel cell stack 22 is required to be raised, the heater on the entrance side is switched on and the cooling unit on the exit side is switched on, and if the humidity of the oxidation gas is required to be lowered, the heater on the exit side is switched on and the entrance side cooling unit is switched on. <P>COPYRIGHT: (C)2008,JPO&INPIT |
