Tutorial problem# 2 (Regeneration with open FWH) A power plant operates on an ideal reheat-regenerative Rankine cycle and has a net power output of 100 MW. Steam enters the high-pressure (HPT) turbine stage at 12 MPa and 550 °C and leaves at 0.9 MPa. Some steam is extracted at this pressure to heat the feedwater in an open feed water heater. The rest of the steam is reheated to 500 °C and is expanded in the low-pressure turbine (LPT) to the condenser pressure of 8 kPa. Determine (a) the thermal efficiency of the cycle and (b) the mass flow rate of steam through the boiler. [use the following diagram and draw the T-s process for the cycle] Boiler HP LP Turbine Turbine 6 10 Open FWH Condenser Pump Pump 8 (9)

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