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Consider a reheat-regenerative vapor power cycle with two feedwater heaters and one reheater. Steam enters the Turbine at 15MPa and 600 C and is condensed in the condenser at a pressure of 10 kPa. Some steam is extracted from the turbine at 4 MPa for the first feedwater heater, and the remaining steam is reheated at the same pressure to 600 C. The extracted steam is completely condensed in the heater and is pump to the steam generator. The 2nd feedwater heater is extracting steam from the low-pressure turbine at a pressure of 0.5MPa. Determine the following: a. Amounts of steam extracted, b. The thermal efficiency of the cycle if the feedwater heaters are (1) all open heaters and (2) all are closed heaters. Which one would you recommended. c. Draw the PV and TS diagrams for both scenarios.