| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently discharge water contents present on an anode side, in a fuel cell system in which an anode off-gas is circulated and re-supplied to a fuel cell. <P>SOLUTION: While a system is stopped, an exhaust valve 62 provided on the upper stream side of a circulation pump 40 is opened slightly to increase the workload of the circulation pump 40. The circulation pump 40 itself heats and the anode off-gas that passes the circulation pump is raised in temperature. As a result, the water content present in the anode of a fuel cell 10 and a piping connected to the anode is discharged efficiently in a short period of time. <P>COPYRIGHT: (C)2008,JPO&INPIT |
