| 摘要 |
PROBLEM TO BE SOLVED: To improve an efficiency of a power generation system by driving a gas turbine with the exhaust gas of a first fuel cell to drive a compressor and generator, and supplying the exhaust gas to the anode side of a second fuel cell after the combustion. SOLUTION: Exhaust gas of a solid oxygen fuel cell 5 is burnt in a high pressure combustion chamber 47 and an indirect combustion gas turbine 9 is driven with the combustion gas, thereby driving an air compressor 33 and a generator 36. The pressure air obtained thereby is set at a specified temp., and thereafter it is supplied to the anode side of the cell 5. Exhaust gas of the gas turbine 9 is led to a low pressure combustion chamber 41, then Co in the exhaust gas on the cathode side of a fused carbonate fuel cell 7 is burnt with remaining oxygen, and after rich CO2 gas is controlled at its temp. with a heat exchanger 39, and it is supplied to the anode side of the cell 7. The exhaust gas flow at high temp. 65 is led to a heat recovery stem generator 47, and steam is generated with a boiler and it is supplied for refining CH4 , etc., to the cathode side, or a generator 71 is driven by driving a turbine 69. |
