| 摘要 |
To provide a fuel cell cogeneration system which allows the rise of the temperature of cooling water and thus takes little time to start even when the difference in temperature between stored hot water and cooling water is small. <??>A fuel cell cogeneration system comprising a fuel cell 11, a cooling water heat exchanger 13 provided on a cooling water pathway 16, a stored hot water pathway 15 through which stored hot water that exchanges heat with cooling water flows, a stored hot water tank 31, a stored hot water controlling means 33, a stored hot water temperature measuring means 36, a stored hot water flow rate adjusting means 38, a flow rate controlling means 37 of controlling the stored hot water flow rate adjusting means 38 and an exhaust gas heat exchanger 23 of exchanging heat between exhaust gas from fuel processing means 21,22 and stored hot water, wherein the flow rate controlling means 37 controls the stored hot water adjusting means 38 to reduce the flow rate of stored hot water flowing through the stored hot water pathway 15 when the temperature of stored hot water is a first predetermined temperature or less during the starting of operation of the fuel cell 11. <IMAGE> |
