| 摘要 |
An apparatus and method for a normal system shutdown of a SOFC system implements a control strategy that utilizes existing system hardware and operating processes already used during normal operation of the SOFC system. The control strategy enables the SOFC system to generate the fluid needed for prevention of oxidation during the cooling process of the anode side of the SOFC stack by converting the conventional system fuel supply for delivery of a reducing fluid to the anode side of the SOFC stack during normal system shutdown thereby preventing subjecting the hardware to cyclic stress that typically occurs during oxidation. The control strategy further enables the SOFC system to control the temperature gradient that exists across the system hardware thereby eliminating induction of thermal stress on the hardware, hence prolonging the life of the system hardware.
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