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Consider a Rankine cycle steam power plant, with superheat, reheat, regeneration, and a single open feed water heater. Steam enters the turbine at 10 MPa, 760 K. Some is extracted at 0.5 MPa,and diverted to a feed water heater operating at 0.5 MPa. The remaining steam is reheated to 700K, and then enters a second turbine stage, where it is expanded to 0.005 MPa and sent to a condenser. Saturated water leaves the condenser at 0.005 MPa, and then pumped via a first pump to the feed water heater pressure of 0.5 MPa. Saturated liquid leaves the feed water heater at 0.5MPa. The pressure is raised to 10 MPa using a second pump which feeds the boiler. The turbines have isentropic efficiency of 85%, and the pumps are ideal. The power plant has 200 MW net power. Determine: a. (6 points) Draw a sketch of the system, and label all the components. Number the flow,starting with 1 at the inlet of the pump that is after the open feedwater heater. b. (6 points) Draw a T-s diagram for the isentropic and actual process. Label the points in the diagram to match the sketch of the system. c. (6 points) The mass flow rate of the working fluid (steam). Compare to the answer you got in problem 1 and 2. Is it less, the same or greater? d. (6 points) The thermal efficiency of the ideal cycle (when the isentropic efficiencies of theturbines and the pump are 100%). Compare to the answer you got in problem 1 and 2. Is itless, the same or greater? e. (6 points) The actual thermal efficiency of the cycle. Compare to the answer you got inproblem 1 and 2. Is it less, the same or greater?

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