摘要 |
In an air-cooled fuel cell system (10) , a controlling apparatus (100) performs a temperature controlling process on the basis of the temperature of a fuel cell detected by a temperature sensor (500) . At this time, if the cell temperature is greater than a target temperature Ta and if the cell temperature is less than a threshold temperature Tth for defining a boundary between (i) a temperature group TGl, in which a change in a cell voltage is small relative to the stoichiometric ratio of the air for power generation, and (ii) a temperature group TG2, in which a change in the cell voltage is large relative to the stoichiometric ratio of the air for power generation, the controlling apparatus (100) controls an air supplying apparatus (210) to increase the amount of the air supplied to an air intake manifold (320) . If the cell temperature is equal to or greater than the threshold temperature Tth, the controlling apparatus (100) controls a variable valve (400) to increase the amount of the air flowing into a cooling air channel portion (315) without an increase in the amount of the air flowing into a power generating air channel portion 314. |