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This is a 2+1 CCPP having Frame 6 GTs with Mark VIe control system. I want to understand. Since GT control system uses turbine exhaust temperature biased by compressor pressure ratio to approximate firing temperature, and also the control system is set to follow the inlet air temperature function, therefore, increase in humidity will cause to reduce GT output. Is this is done by reducing firing temperature if humidity goes up or some thing other than this?
please explain.
please explain.