Consider a 100 MW power plant consisting of an adiabatic steam turbine, a constant pressure condenser, an adiabatic pump, and a constant pressure boiler. Steam enters the turbine at 80 bar with a specific enthalpy of 3545.3 kJ/kg (State 1) and expands to a pressure of 0.06 bar with 80% quality (State 2). Steam leaving from the turbine rejects heat and saturated liquid water exits the condenser (State 3). Water is pumped back to the boiler pressure using the pump and exits the pump at 80 bar and 40C (State 4).
(a) Complete the following table.
(b) Calculate the mass flow rate (kg/s) of steam.
(c) What is the thermal efficiency (%) of the power plant?
(d) Show the cycle on T-v diagram. Label states, show property values, and indicate appropriate lines of constant pressure.