A steam power plant consists of a boiler, a turbine, a condenser and a pump. The temperature of the inner walls of the boiler is 350oC and the temperature of the condenser cooling water is 20oC. During a certain interval of time, the heat added to the boiler is 2.9x106 kJ and the heat rejected in the condenser is 2.1x106 kJ. If the pump work is 250000 kJ, estimate : a. The turbine gross and net output. b. The thermal efficiency of the power plant. c. The maximum possible efficiency of the power plant.
Second law of thermodynamics.
The Attempt at a Solution
Applying law of conservation of energy to get Wout (Turbine work)