| 摘要 |
A humidifier (12) humidifies hydrogen and air which are to be supplied to a fuel cell stack (11) of a fuel cell power plant by using water from a water tank (14). When starting the fuel cell power plant, the temperature of the fuel cell stack (11) is detected by a temperature sensor (22) in order to determine whether or not the fuel cell stack (11) is in a frozen state. When the fuel cell stack (11) is in the frozen state, it is warmed without warming up the water tank (14). When the fuel cell stack (11) is warmed up, the fuel cell stack (11) starts power generation with the gas that is not humidified. After thawing of the water tank (14) using heat produced by power generation by the fuel cell stack (11) is performed, the humidifier (12) starts humidification of hydrogen and air. <IMAGE> |
