In Figure, is anything gained by totally condensing the vapor leaving each stage? Alter the processes in
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In Figure, is anything gained by totally condensing the vapor leaving each stage? Alter the processes in Figure 5.12a and 5.12b so as to eliminate the addition of heat to stages 2 and 3 and still achieve the sameseparations.
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- 50.0 Q = 734 MBH V2- 34.5 V3 = 27.7 Q - 483 MBH Q = 377 MBH = 0.690 Ун = 0.803 Уна = 0.866 Унз F- 100 177°F 169.4°F = 0.50 Хня 163.8°F Stage 1 212.2°F Stage 2 198.1°F Stage 3 188.3°F Tp= 192.3°F Q = 751 MBH Q- 487 MBH Q - 376 MBH L, - 50.0 - 0.310 2 = 15.5 L3 = 6.8 = 0.544 *нз - 0.439 XH2 (a) V, - 60.0 Ун, 0.678 V2 = 46.0 = 0.783 Уна Q = 883 MBH Va = 36.1 Q - 646 MBH Q = 493 MBH = 0.853 Унд F = 100 178°F 170.4°F - 0.50 ХнЕ 164.8°F Stage 1 213.4°F Stage 2 200.6°F/ Stage 3 190°F - 192.3°F TF- 2- 23.9 4= 9.9 - 0.525 L = 63.9 e = 904 MBH *н, - 0.300 Q = 655 MBH = 0.414 XH2 Q - 503 MBH (b)
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