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Consider a vapor power cycle as shown below. Steam enters the first turbine stage at 12...

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Mechanical Engineering

Consider a vapor power cycle as shown below. Steam enters thefirst turbine stage at 12 MP a, 480 oC, and expands to 2 MP a. Somesteam is extracted at 2 MP a and fed to the closed heater. Theremainder expands through the second-stage turbine to 0.3 MP a,where an additional amount is extracted and fed into the openheater operating at 0.3 MP a. The steam expanding through thethird-stage turbine enters the condenser at a pressure of 6 kP aand leaves the condenser as saturated liquid at 6 kP a. Liquidwater leaves the closed heater at 210 oC, 12 MP a, and condensateexiting as saturated liquid at 2 MP a is trapped into the openheater. Saturated liquid at 0.3 MP a leaves the open heater. Assumeall pumps and turbine stages operate isentropically. Determine forthe cycle: (a) the heat transfer to the working fluid passingthrough the steam generator, in MW, (b) the heat transfer from theworking fluid passing through the condenser, in MW, (c) the thermalefficiency (%), and (d) sketch a T ?s diagram for the entire cyclewith labeled states, isobars, and process directions

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