Answer Happy

In a gas turbineplant air enters a compressor at atmospheric conditions of15oC, 1.0133 bar and is compressed through a pressureratio of 10. The air leaving the compressor passes through a heatexchanger before entering the combustion chamber. The hot gasesleaves the combustion chamber at 700oC and expandthrough an HP turbine which drives the compressor. On leaving theHP turbine the gases pass through a reheat combustion chamber whichraises the temperature of the gases to 800oC before theyexpand through the power turbine, and thence to the heat exchangerwhere they flow in counter-flow to the air leaving the compressor.Isentropic efficiency of compressor, 80%, isentropic efficienciesof HP and power turbine, 87 and 85%, mechanical efficiency of HPturbine-compressor drive, 92%, mechanical efficiency of powerturbine drive, 94%, thermal ratio of heat exchanger, 0.75, pressuredrop on air side of heat exchanger, 0.125 bar, pressure drop infirst combustion chamber, 0.100 bar, pressure drop in reheatcombustion chamber, 0.080 bar, pressure drop on gas side of heatexchanger, 0.100 bar. Neglecting the mass flow rate of fueland changes of velocity throughout, Calculate:
(Takecp and γ for air as 1.005KJ/Kg K and 1.4,cp and γ for combustion and expansion processes as1.15KJ/Kg K and 1.333)