Steam is the working fluid in an ideal Rankine cycle with superheat and reheat. Steam
enters the high-pressure turbine at 8.0MPa, 480ÌC, and expands to 0.6MPa. It is then reheatedto 450ÌC before entering the low-pressure turbine where it expands to the condenser pressure of 10kPa. The net power output is 110MW.
A closed feedwater heater (CFWH) which uses steam extracted fromthe low-pressure turbine at 0.5MP. The extracted steam leaves the CFWH as a saturated liquid and is then pumped up to the boiler pressure before mixing with the feedwater. The feedwater leaves the CFWH at the same temperature as the now condensed extracted steam leaving the CFWH.
i.Plot the cycle on a T-s diagram, labeling all states.
ii.Thermal efficiency of the cycle
iii.The mass flow rate of steam, in kg/s
iv.The rate of heat transfer from the condensing steam as it passes through the condenser, in MW
