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Q16. The layout of a gas turbine plant is illustrated in Fig Q2. The plant operates between pressures of 1.00 bar and 8.00 bar. The HP turbine drives the compressor, and the LP turbine drives the load. Air enters the compressor at temperature of 18°C. Combustion gases enter the HP turbine at 997°C. The isentropic efficiency of the compressor is 0.80, and that of each turbine is 0.88. For ALL processes, γ = 1.4 and C_p =1.005 kJ/kg K.

(a) Sketch the cycle on a T-s diagram.

(b) Calculate EACH of the following:

(i) The temperature at HP turbine exhaust

(ii) The pressure at HP turbine exhaust

(iii) The thermal efficiency.