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Q A power plant located at Penang has been generated by Brayton cycle to operate gas...

Q A power plant located at Penang has been generated by Brayton cycle to operate gas turbine involved air as the working fluid of the plant. Fresh air has been supplied to the compressor at 35°C and 100 kPa, while entered the combustion chamber at 350°C and 0.8 MPa with flow rate of 1200 kg/min and leaves the chamber at 1127°C. However, the power output for the plant has been measured during the experiment is 70000 kW Assume constant properties for air at 300 K with cv = 0.718 kJ/kg-K, cp = 1.005 kJ/kg-K, R = 0.287 kJ/kg-K, k = 1.4. Determine: (a) the isentropic efficiency of the turbine. (b) the thermal efficiency.

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