| 摘要 |
PURPOSE:To establish a control method for gas concentration in a fuel cell which presents an enhanced ratio of fuel utilization when power generation of the fuel cell is started, can reduce the lag of the supply of carbon dioxide from the anode side to the cathode side, can smoothly raise the rate of fuel utilization and the output of power generation, and can obtain the rated output in a short time. CONSTITUTION:The arrangement with this gas concentration control method includes a reformer 2 which reforms a fuel gas 1 into an anode gas 3 containing hydrogen, a fuel cell 4 which makes power generation from the anode gas and cathode gas 9, an anode exhaust gas line 10 which supplies anode exhaust gas 5 to the reformer, a cathode line 12 to supply cathode gas to the cathode side C of the fuel cell, and a fuel line 14 which supplies the hydrocarbon to the combustion chamber Co of the reformer. From the fuel line, the hydrocarbon fuel is supplied to the combustion chamber and combusted from a certain time before the start of power generation till a certain time after the same. |
