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Superheated vapor enters the turbine at 10 MPa, 480°C, and the condenser pressure is 7.5 kPa...

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Mechanical Engineering

Superheated vapor enters the turbine at 10 MPa, 480°C, and thecondenser pressure is 7.5 kPa of a steam Rankine power cycle.Isentropic efficiencies of the turbine and pump are 84% and 73%,respectively. Determine for the cycle

a. Sketch the cycle of a T-s diagram. Indicate the isobars withtheir values and the values for temperature and entropy.

b. The heat transfer to the working fluid passing through thesteam generator, in kJ per kg of steam flowing.

c. The thermal efficiency.

d. Compute the entropy generated by the turbine per unit of masof steam flowing.

e. The heat transfer from the working fluid passing through thecondenser to the cooling water, in kJ per kg of steam flowing.[Hint: this refers to the cooling tower]

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