Exhaust gas at 400oC and 1 bar from internal-combustion engines flows at the rate of 125 mol s-1 into a waste-heat boiler where saturated steam is generated at a pressure of 1,200 kPa water enters the boiler at 20oC (Tσ) and the exhaust gases arc cooled to within 10oC of the steam temperature. The heat capacity of the exhaust gases is Cp/R = 3 34 + 1.12 x 10-3,T/K. The steam flows into an adiabatic turbine and exhausts at a pressure of 25 kPa if the turbine efficiency ή is 725fc,
(a) What is Ws the power output of the turbine?
(b) What is the thermodynamic efficiency of the boiler/turbine combination?
(c) Determine SG fur the boiler and fur the turbine.
(d) Express Wlost(boiler) and WLost (turbine) as fractions of | Wideal| the ideal work of the process.