| 摘要 |
PURPOSE:To provide a solid electrolytic fuel cell stack capable of effectively utilizing a heat in the inner part. CONSTITUTION:An air preheater 16 and a fuel gas preheater 18 of double pipe structure are provided in a stack. Low temperature air before generation is sent to one side of the double pipe of the air preheater 16, and either one of high temperature air and fuel gas after generation to the other side. The fuel gas before generation is also sent to one side of the double pipe of the fuel gas preheater 18, and either one of the air and fuel gas after generation to the other side. Thus, the heat possessed by the air or fuel gas after generation can be effectively utilized in a stack. |
