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Q4. In a steam plant, using superheat, the turbine receives the steam at a pressure and temperature of 8 bar and 250°C respectively. The steam isentropically expands to condenser pressure of 1 bar.

The feed pump work cannot be neglected, there is no undercooling in the condenser.

(a) Sketch the T-s diagram for the cycle;

(b) Calculate the thermal efficiency of the cycle.