| 摘要 |
PROBLEM TO BE SOLVED: To stably supply reformed gas to a fuel cell stack without causing moisture to be condensed in the reformed gas in starting and during operation of a fuel cell system. SOLUTION: A reformed gas pipe line 16, through which reformed gas flows between a reformer 3 and a fuel cell stack 10 is heated and temperature-held directly or through a high temperature heating oil circulating pipe line 11 with a reformed gas, capable of out utilizing in the fuel cell stack 10 because of high CO concentration coming out of the reformer 3 in starting or exhaust gas of a combustion burner 6 for burning unused hydrogen from the fuel cell stack 10. The reformed gas pipe line 16 is held at a temperature which does not condense steam to avoid the unstable state of moisture in the reformed gas or stoppage of power generation, in the worst case caused by condensation of steam. A drain tank 15 is installed to remove the condensed water from the reformed gas pipe line 16 and storage, in case of the steam being condensed in the reformed gas pipe line 16. |
