| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system stably maintaining an output property without temporarily stopping operation. <P>SOLUTION: A monitor 18 monitors a state of usage of an FC stack, estimates quantity of reaction water when judging that drainage of reaction water is stagnated at a gas flow passage and a clogging of water is generated, calculates an amount of a water drainage maintaining agent to be added corresponding to a discharge amount of the reaction water, and indicates to supply the necessary quantity of the water drainage maintaining agent to a flow rate controller 14. In accordance with the indication of the monitor 18, the flow rate controller 14 supplies a necessary amount of water drainage maintaining agent from a water drainage maintaining agent storing tank 12 to an oxidant gas supply means 16. The oxidant gas supply means 16 supplies the water drainage maintaining agent mixed with the oxidant gas to the FC stack 10. The reaction water, the water drainage maintaining agent, and exhausted oxidant gas discharged from the FC stack 10 are separated into the reaction water and the water drainage maintaining agent, and the exhausted oxidant gas at a collection means 20. <P>COPYRIGHT: (C)2007,JPO&INPIT |
