水噴霧を利用したガスタービンの出力増加 : 熱サイクルの理論的検討と検証

概要

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Moisture Air Turbine (MAT) cycle is proposed for improving the characteristics of land based gas turbine by injecting atomized water at inlet to compressor. Compressor work of isentropic compression for moisture air mixture with phase change is theoretically considered, which has revealed that water evaporation may reduce compressor work. Experiment using 15MW class axial flow load compressor has also verified the theory. Realistic cycle model calculation predicts that 10% power increment by 1% of water to compressor intake air is expected and that the amount of water consumption is much less than that of conventional inlet air cooling system with cooling tower for heat rejection. Besides, thermal efficiency is anticipated to be improved mainly due to the reduction of compressor work. Contrary to the conventional evaporative cooler, MAT cycle could provide power output at a desired value within its capability regardless of ambient humidity condition.
公益社団法人日本ガスタービン学会の論文
1997-09-10