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Q2. The compressor of an open gas turbine cycle receives air in at a pressure and temperature of 1.07 bar and 5°C and delivers to the combustion chamber at a pressure of 6 bar and 193°C. The products of combustion leave at 517°C and enter a turbine where the gas expands to 1 bar.

The isentropic efficiency of the turbine is 0.86 and the power developed by the plant is 900 kW.

For hot gas, y = 1.33 and C_p = 1.15 kJ/kgK. For airy= 1.4 and C_p = 1.005 kJ/kgK

Calculate EACH of the following:

(a) the compressor isentropic efficiency;

(b) the mass flow rate of air;

(c) the thermal efficiency of the cycle.