A helium gas turbine cycle has compressor and turbine, isentropic efficiencies of 80% and 90% and pressure ratio of 2.5 and 2.4 respectively. The compressor has one stage of intercooling and turbine has one stage of reheating. The cycle is regenerative with the efficiency of 85%. The cycle minimum and maximum temperatures are 37^oC and 1100^oC respectively.

Calculate;

(a) The cycle efficiency

(b) The cycle power for helium mass flow rate of 90 kg/sec.

Note: (C_P for helium is 5.19 KJ/kg. K & γ = C_P / C_V = 1.667)