The output of gas turbine generator can be effectively improved through cooling the inlet air

especially at high ambient temperature.Theoretical model of the effect of inlet air temperature on unit economy was presented

and corresponding calculation was conducted combining with an engineering case.The results show that

the unit output gradually increases as the inlet air temperature decreases.The system construction cost will rise sharply due to the air dehumidification when the inlet air temperature drops below the dew point

so the cost effectiveness goes worse. Therefore

it suggests that the inlet air dehydration pretreatment should be carried out before installation of inlet air cooling system particularly in coastal areas with high air humidity.