Air enters the compressor of a simple gas turbine at p1= 14 lbf/in.2, t1 = 520degreer, and a volumetric flow rate of 10,000 ft3 / min. the isentropic efficiencies of the compressor and turbine are 83% and 87%, respectively. the compressor pressure ratio is 14 and the temperature at the turbine inlet is 2500 r. on the basis of an air-standard (not cold air-standard) analysis, calculate the thermal efficiency of the cycle. the net power developed, in btu/h.