Pt4 = == = 4.61 An Un-Cooled Turbine Has Entrance And Exit Flow Con- Ditions: = 2.5 MPa, T4 1760 K, T15 1000 K. The Gas Mass Flow Rate In The Turbine Is 4 103 Kg/S And The Turbine Polytropic Efficiency Is E, = 0.85. Assuming X, = 1.33 And Cpt = 1156 J/Kg . K, Calculate (A) Turbine Exit Total Pressure, P15, In KPa (B) Turbine Shaft Power In MW (C) Turbine

 

t5 4.61 An un-cooled turbine has entrance and exit flow con- ditions: P+4 = 2.5 MPa, T = 1760 K, T = 1000 K. The gas mass flow rate in the turbine is m = 103 kg/s and the turbine polytropic efficiency is e = 0.85. Assuming y = 1.33 and = 1156 J/kg. K, calculate Cpt (a) turbine exit total pressure, Pt5, 1 (b) turbine shaft power in MW (c) turbine adiabatic efficiency, n in kPa 5 4 FIGURE P4.61