| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell system that prevents an area around an air release valve from getting dirty.SOLUTION: A fuel cell system includes: a power generation system 18 that has a fuel cell 1; an exhaust gas passage 75 that allows passage of exhaust gas discharged from the power generation system 18; a reforming water storage system 4A that stores condensed water produced in association with operation of the power generation system 18; a hot water storage tank 77; a circulation passage 78; a water circulation source 79; an air release valve 9 that discharges water that can include residual air in the circulation passage 78; a heat exchanger 76 that exchanges heat between the exhaust gas flowing through the exhaust gas passage 75 and water flowing through the circulation passage 78; and a release passage 96 that performs an air release operation of releasing the water, which is discharged from the air release valve 9 and can include the air, to at least one of the exhaust gas passage 75 and the reforming water storage system 4A. |
