| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell system which can maintain the temperature of a fuel cell 11 at a constant temperature, and can enhance the fuel reform efficiency.SOLUTION: While maintaining the S/C of a mixed gas being supplied to a fuel reformer 15a at a constant level by controlling the circulation amount of anode exhaust gas circulated to the fuel reformer 15a, the air volume supplied to the fuel reformer 15a, and fuel quantity supplied to the fuel reformer 15a, and further maintaining the temperature of the fuel reformer 15a at a constant temperature, the reformer 15 and a fuel cell 11 are operated. Consequently, the fuel cell 11 can output a demanded power while avoiding precipitation of carbon in the fuel reformer 15a, and high efficiency operation can be ensured. |
