| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell system which can be operated with high efficiency.SOLUTION: In a fuel cell system 1, steam contained in an unused fuel circulating through a recycle fuel path 30 is condensed and the condensed water is stored in a condensed water tank 101. The recycle fuel from which the condensed water is recovered is supplied to the suction port side of an ejector. An electronic controller controls a pump 120 and adjusts the quantity of water being supplied from a water path 50 to the confluence 21 side of a fuel gas path 10, so as to bring a circulation rate Rclose to a target circulation rate R. Consequently, even if the production of electricity of a fuel cell module 90 is controlled by controlling the circulation amount of the fuel gas path by means of a blower 60, a high circulation rate can be maintained over the entire load range. |
