A Brayton cycle has air entering the compressor at 100 kPa and 290 K. The air exits the compressor at a pressure of 1000 kPa, and heat is added through the combustor so that the air enters the turbine at 1100 K. The mass flow rate of the air is 15 kg/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 0.80 and an isentropic compressor efficiency of 0.70.
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