ガスエンジンによるガスタービン複合発電システムの高性能化(FP1 高温・高効率発電・エネルギー貯蔵技術)

概要

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The reciprocating engine has the maximum pressure and temperature in the cylinder, higher than that of the conventional gas turbines. When the gas engine is integrated with gas turbine instead of turbocharger, ETCS (the engine-turbo compound system) is composed. This paper defines the compound system with ERGT (the Engine Reheat Gas Turbine) and optimizes the engine operating condition. Natural gas firing steam/gas turbine combined cycle is selected as the standard system of thermal power plant The higher TIT (Turbine Inlet Temperature) of gas turbine usually enables the higher power generation efficiency. This paper shows the effect of engine exhaust temperature on the cycle performance with no change of TIT and that the exhaust of 900℃ increases the system power generation efficiency from 46 to 50%LHV (TIT 1150℃) and 54 to 57%LHV (TIT 1350℃), respectively.
一般社団法人日本機械学会の論文
2004-06-22