Saturated vapor at 8 MPa enters the turbine of a 100 MW (net power) vapor power plant. The pressure at the exit of the turbine is 0.008 MPa. Saturated liquid leaves the condenser at 0.008 MPa. The turbine and pump have isentropic efficiencies of 85%. For the cycle, determine
a) Draw a sketch of the system and a T-s diagram for the isentropic and actual process.
b) The mass flow rate of the working fluid (steam).
c) The power output () of the turbine in Watts. W
d) The net heat transfer to the working fluid in the boiler, per unit mass of steam in kJ/kg h Qm ??????
e) Net heat transfer to the cooling fluid in the condenser, per unit mass of steam in kJ/kg L Qm ? ? ? ? ? ?
f) The thermal efficiency for the ideal cycle (where the isentropic efficiencies of the turbine and pump are 100%).
g) The actual thermal efficiency of the cycle.