A Brayton cycle has air entering the compressor at 1 atm and 75°F, and the air exits the compressor at 14 atm. The air exits the combustor at 2200°F. The mass flow rate of the air is 25 lbm/s. Consider the air to have variable specific heats. Determine the net power produced by the cycle, the ratio of the compressor power to the turbine power, and the thermal efficiency of the cycle for (a) an isentropic turbine and compressor, and (b) an isentropic turbine efficiency of 0.78 and an isentropic compressor efficiency of 0.72.
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