160833595624 979 gpm from eq 6 51 hl e hw

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Unformatted text preview: , and = 58 dyne/cm = 0.058 kg/s2, h = 6 / g L DBmax = 6(0.058) / (9.8)(954)(0.00476) = 0.0078 m = 0.31 in. liquid From Eq. (2), ht = hd + hl + h = 1.35 + 1.22 + 0.31 = 2.88 inches liquid = 0.098 psi/tray. (c) Applying the criterion of Eq. (6-68) to the top tray, hd + h = 3.39 + 0.13 = 3.52 in., which is greater than hl = 0.74 in. Therefore, weeping will not occur. Applying the criterion of Eq. (6-68) to the bottom tray, hd + h = 1.35 + 0.31 = 1.66 in., which is greater than hl = 1.22 in. Therefore, weeping will not occur. (d) From Fig. 6.28 for the top tray, with FLV = 0.0192 and % flood = 73%, fractional entrainment = = 0.11, which is fairly high. From Fig. 6.28 for the bottom tray, with FLV = 0.0473 and % flood = 39%, fractional entrainment = = 0.0065, which is very low. The fractional entrainment is defined as, = e/(L + e). Rearranging, entrainment rate = e = L/(1 - ). At the top tray, e = 0.11(727)/(1 - 0.11) = 90 lbmol/h At the bottom tray, e = 0.0065(2,578)/(1 - 0.0065) = 16.9 lbmol/h (e) From Eqs....
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This note was uploaded on 09/08/2008 for the course CHE 244 taught by Professor Selebi during the Spring '06 term at Lehigh University .

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