In a gas turbine plant, air is compressed through a pressureratio of 6 from 15 ?C. It is then heated to the maximum permissibletemperature of 750 ?C and expanded in two stages each of expansionratio ?6, the air being reheated between the stages to 750 ?C. Aheat exchanger allows the heating of the compressed air through 75percent of the maximum range possible. Calculate the cycleefficiency, the work ratio and the net work output per kg of air.The isentropic efficiencies of the compressor and turbine are 0.80and 0.85, respectively.
answer(0.324, 0.385, 152 kJ/kg)
