Exergy analysis of a gas turbine system with evaporative cooling at compressor inlet

This paper deals with the thermodynamically modelled gas turbine consisting of Media Evaporative Cooling System (MECS) at compressor inlet for investigating the generated power, second law efficiency, and entropy generation number. The parametric study using this model shows effects of ambient conditions, compressor and turbine inlet temperature, and pressure ratio on the gas turbine power and second law efficiency. The results show that the proposed cycle gives better second law efficiency and also improves generated power for different ambient temperature and relative humidity. A comparison of the performance test results of the present model with those of MECS shows a good agreement.

Keywords: gas turbines, exergy analysis, evaporative cooling, second law efficiency, compressor inlet, thermodynamics, entropy generation

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