HYBRID POWER GENERATION SYSTEM AND ITS OPERATING METHOD

摘要

A hybrid power generation system comprises a compressor (1) for compressing intake air (30), a regenerative heat exchanger (4) for heating the compressed air (31) from the compressor, a fuel cell (10) producing high temperature gas (33) containing a reaction product of cell fuel, i.e. water, by heating the compressed air from the regenerative heat exchanger with the reaction heat of the cell fuel (60), a turbine (2) being driven by the high temperature gas from the fuel cell to discharge the exhaust gas (35) becoming a heat source to the regenerative heat exchanger, a heat exchanger (14) for condensing and collecting water in the exhaust gas from the regenerative heat exchanger, a water supply tank (20) storing water collected by the heat exchanger, and a pump (50) for supplying water in the water supply tank (20) to the intake air (30) and the compressed air (31). Since the water produced from the fuel cell (10) can be sprayed to the intake air of gas turbine, the output is enhanced and high efficiency can be attained while decreasing cost.