| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell system including a structure capable of securing a sufficient amount of condensed water while downsizing a radiator, and to provide a fuel cell system capable of maintaining stable power even at a high ambient temperature in summer and the like.SOLUTION: A fuel cell system 3 includes an exhaust heat recovery heat exchanger 31 for performing heat exchange between an exhaust gas discharged from a fuel cell power generation unit 25 and reserved hot water reserved in a hot water storage tank 5, a storage unit 28 for storing condensed water recovered by cooling the exhaust gas by the exhaust heat recovery heat exchanger 31, and a radiator 16 for cooling the reserved hot water when a temperature of the reserved hot water introduced to the exhaust heat recovery heat exchanger 31 exceeds a predetermined temperature. In an exhaust gas exhaust passage 32 for discharging the exhaust gas from the fuel cell power generation unit 25, an exhaust gas cooling heat exchanger 33 for performing heat exchange between an air blow subjected to the heat exchange by the radiator 16 and the exhaust gas is provided on an upstream side of the exhaust heat recovery heat exchanger 31. |
