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In the vapor power plant, the saturated steam at 357.06 C leaves the boiler, and superheated to 560 C before enters the turbine in

 

In the vapor power plant, the saturated steam at 357.06 C leaves the boiler, and superheated to 560 C before enters the turbine in which it expanded to condenser pressure of 0.06 bar. In the condenser, the rate of heat transfer to the cooling water is 22 kW, which is achieved at 80 % isentropic efficiency of the turbine. The cooling water enters the condenser at 15 C, and 0.2 kg/s, and it has 4.0 kJ/kg.K specific heat. a) Draw a well-labelled T-s diagram, and calculate, b) Steam mass flow rate, in kg/s c) Turbine output power, d) Pump input power, e) Rate of heat transfer in the boiler, f) Thermal efficiency of the plant g) Cooling water outlet temperature.

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