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(Solved): A simple gas turbine cycle used in a power plant produces a power output of 20MW.5% of the air at th ...
A simple gas turbine cycle used in a power plant produces a power output of 20MW.5% of the
air at the exit of the compressor is taken away for turbine cooling, and this air does not participate in the
rest of the gas turbine processes. The data for the cycle are: compressor pressure ratio: 12; Polytropic
efficiencies of compressor as well as turbine: 0.88 ; Pressure loss in combustion chamber: 3% of
compressor exit pressure; Turbine inlet temperature: 1200 K ; Mechanical efficiency: 0.99; Ambient
conditions: 1 bar; 288 K . Properties: air: Cp=1.005k(J)/(k)gK;\gamma =1.4; Combustion products: Cp=1.148
k(J)/(k)gK;\gamma =1.33; Air-fuel ratio is 65 ; Fuel calorific value (LHV) is 41.3M(J)/(k)g.
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