D203 高湿分空気利用ガスタービン発電システム

抄録

This paper describes advanced utilization of moisture in gas turbine system for the purpose of improving efficiency and output. We have proposed and been develping a concept of Advanced Humid Air Turbine (AHAT) system. In AHAT system, unlike the original HAT system which used inter-cooling type compresser, water atomization cooling (WAC) is used to cool the suction air. More water is added between compresser and recuperator to increase recuperated heat and turbine output. Heat cycle evaluation has shown that the optimum pressure ratio to AHAT is close to that of heavy duty gas turbines. The evaluation also revealed that efficiency of AHAT exceeds combined cycle and the difference is greater in small unit.