| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid oxide fuel cell device that rapidly cools an entire fuel cell module while stably maintaining a power-generating operational state of the fuel cell module without changing the power-generating operational state.SOLUTION: A solid oxide fuel cell device 1 includes: a combustion section 18 that is provided above a fuel cell stack 14; a fuel gas supply passage 20 that is arranged so as to receive heat from the fuel cell stack 14 and the combustion section 18; an exhaust gas emission passage 21 that emits combustion gas burned in the combustion section 18, as exhaust gas; an oxidant gas supply passage 22 that is provided so as to exchange heat with the exhaust gas emission passage 21 and that guides oxidant gas for power generation to the fuel cell stack 14; and heat exchange amount modification means 60, 152, 156, and 158 that modify and reduce the amount of heat exchange between exhaust gas in the exhaust gas emission passage 21 and oxidant gas for power generation in the oxidant gas supply passage 22, without changing the total amount of heat of the exhaust gas. |
