Brayton Cycle Solve Problem 9.55 on a cold air-standard basis with specific heats evaluated at 520°R.
Problem 9.55
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in.2, T1 = 520°R. 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. The net power developed is 5 × 106 Btu/h. On the basis of an air-standard analysis, calculate
(a) the volumetric flow rate of the air entering the compressor, in ft3/min.
(b) the temperatures at the compressor and turbine exits, each in °R.
(c) the thermal efficiency of the cycle.
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