(Solved): A combined gas turbine-steam power plant operates as shown in the figure below. Pressure and tempe ...

A combined gas turbine-steam power plant operates as shown in the figure below. Pressure and temperature data are given at principal states, and the net power developed by the combined power is 105 MW. Using air-standard analysis for the gas turbine. determine: (a) the isentropic efficiencies of both turbines and the gas cycle compressor. (b) the mass flow rates of air and steam, in kg/sec (c) the net power developed by both gas and vapor cycle, in MW. (d) the overall thermal efficiency of the plant. (e) the full exergy accounting for the overall plant, in MW. Let To 300 K. Po 1 bar. (f) the exergetic efficiency. T?=640 K P2= 11.3 bar 2- Air inlet. Exhaust Compressor T?=430 K Ps 1 bar P6120 bar lin Combustor Gas turbine T? = 300 K -1 P?= 1 bar www www Heat exchanger Steam cycle Pump 80% Ty=1650 K P3= 11 bar Turbine -4 7? 1040 K P4 1.1 bar 7=540°C P=118.5 bar 7-45 C x=0.88 Turbine $11 Condenser P=0.08 bar IT W W Pour