| 摘要 |
PROBLEM TO BE SOLVED: To suppress a heat exchanger in which city water flows from being corroded by residual chlorine without entailing complication and cost increase of a fuel cell system.SOLUTION: A control device 15 for a fuel cell system comprises: a first-temperature high-water control unit 61 that controls a stored-hot-water circulation pump 22b so as to fill a hot water storage tank 21 with stored hot water, which is discharged from a heat exchanger 12, at a first temperature 2a corresponding to a first target temperature T1a lower than a second target temperature T1b of the stored hot water; and a second-temperature high-water control unit 62 that controls the stored-hot-water circulation pump 22b so as to fill the hot water storage tank 21 with the stored hot water at a second temperature T2b corresponding to a second target temperature T1b of the stored hot water discharged from the heat exchanger 12 after the hot water storage tank 21 is filled with the stored hot water at the first temperature T2a under the first-temperature high-water control unit 61.SELECTED DRAWING: Figure 2 |
