A combined gas turbine-vapor power plant operates as shown in the figure. Pressure and temperature data are given at principle states, and the net power developed by the gas turbine is 147 MW. Stray heat transfer and kinetic and potential energy effects can be ignored. Using air-standard analysis for the gas turbine, determine: the net power, in MW, developed by the power plant; the overall thermal efficiency of the plant.

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T₂ = 690 K P₂= 13.6 bar 2+ Air inlet Exhaust Compressor T₁ = 400 K Ps= 1 bar P6 P7 5 -6 Combustor T₁ = 300 K P₁ = 1 bar Gas turbine On www www Heat exchanger Pump 1p-80% Steam cycle 9 Ty=1580 K +3 Ps= 13 bar Turbine T₁ = 900 K P4= 1 bar T₁=520°C P= 100 bar Turbine 11₁=85% W 147 MW Pg=Pg=0.08 bar Wap Condenser out T₂ = 690 K P₂= 13.6 bar 2+ Air inlet Exhaust Compressor T₁ = 400 K Ps= 1 bar P6 P7 5 -6 Combustor T₁ = 300 K P₁ = 1 bar Gas turbine On www www Heat exchanger Pump 1p-80% Steam cycle 9 Ty=1580 K +3 Ps= 13 bar Turbine T₁ = 900 K P4= 1 bar T₁=520°C P= 100 bar Turbine 11₁=85% W 147 MW Pg=Pg=0.08 bar Wap Condenser out

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Net power developed by the plant W gas 147 MW W vap h7 h8 For state 7 The saturation temperature ... View the full answer