| 摘要 |
Provided is a method for shutting down an indirect internal reforming SOFC, in which reliable reforming, prevention of anode oxidative degradation, fuel saving and time saving are possible. Reforming catalyst layer temperature T is measured, and FkCALC is calculated; when FkCALC ‰¥ FkE, T is measured, and FkCALC and FkMinCALC are calculated; if FkMinCALC ‰¥ FkE, then the flow rate of the fuel supplied to the reformer is set to FkE and the method moves on to step D; if FkCALC ‰¤ FkMinCALC < FkE, then C6 to C9 are performed in order; C6) the temperature of the reforming catalyst layer is increased; C7) T is measured, and FkCALC and FkMinCALC are calculated; C8) if FkCALC < FkE, then the flow rate of the fuel supplied to the reformer is set to FkMinCALC and the method returns to C6; C9) if FkCALC ‰¥ FkE, then the flow rate of the fuel supplied to the reformer is set to FkE and the method moves on to D; D) the method waits for the anode temperature to fall below an oxidative degradation temperature. FkE and the like are defined in the specification. |
