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Steam at 10 MPa, 600C enters the first-stage turbine of an ideal Rankine cycle with reheat. The steam leaving the reheat section of the steam generator is at 500C, and the condenser pressure is 6 kPa. If the quality at the exit of the secondstage turbine is 90%, determine the cycle thermal efficiency.

The ideal Rankine cycle of Problem 8.7 is modified to include reheat. In the modified cycle, steam expands through the first-stage turbine to saturated vapor and then is reheated to 900F. If the mass flow rate of steam in the modified cycle is the same as in Problem 8.7, determine for the modified cycle

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(a) the net power developed, in Btu/h.

(b) the rate of heat transfer to the working fluid in the reheat process, in Btu/h.

(c) the thermal efficiency.

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