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Q2.

The compressor in an open gas turbine cycle receives air in at a pressure and temperature of 1.054 bar and 17'°C and delivers to the combustion chamber at a pressure of S.8 bar and 210°C.

The products of combustion leave at a pressure of 4,97 bar and 5,17°C and enter a turbine where the gas expands to 1 bar. The isentrop1'c efficiency of the turbine is 0.8 and the power developed by the plant is 134 kW .

Calculate EACH of the following:

(a) the compressor isentropic efficiency.

(b) the mass flow rate of air.

(c) the thermal efficiency of the cycle.

Nate: For hot gas, g- 1. 33 and C_p = 1. 154 kJ/kgK.

For air γ = 1.4 and C_p = 1.005 kJ/kgK