Inderscience Publishers

Effects of thermodynamic and mechanical irreversibilities on gas turbine performance enhancement by intake air cooling

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A mathematical model for an existing gas turbine unit in Bahrain another model for intake Air Cooling Gas Turbine (ACIGT) with irreversibility's and variable specific heats were derived in dimensionless form. The maximum net power output and corresponding thermal efficiency were obtained using graphical visualisation and numerical calculation. Results showed an increases of 30% in output power and 25% in thermal efficiency, for a range of operating conditions of the turbine and compressor. There were used to asses operational conditions of power output and thermal efficiency of a generator gas turbine in Bahrain. The results suggest the proposed model in thermodynamically feasible.

Keywords: gas turbines, intake air cooling, performance enhancement, irreversibilities, second-law efficiency, environment, mathematical modelling, Bharain, exergy, thermodynamics, net power output, thermal efficiency

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