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This is problem 6-9 from El-Wakil’s Powerplant Technology book -- consider for simplicity an ideal Rankine...

This is problem 6-9 from El-Wakil’s Powerplant Technology book -- consider for simplicity an ideal Rankine cycle with turbine inlet and exit steam at 2500 psia and 1000°F, and 1 psia, respectively, and no feedwater heating. The steam mass flow rate is 2x106 lbm/h. The plant has two-pass surface condenser with 45-ft-long 7/8-in 18-BWG-type 304 stainless steel tubes. Cooling water enters the tubes at 70°F and 7 ft/s. With no flows into the condenser other than turbine steam, find (a) the plant power, in megawatts, and efficiency and (b) the total number of tubes if the condenser terminal temperature difference is 8°F.

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