Packed towers generalized pressure drop correlation

Figure 9-21F. Strigle s latest generalized pressure drop correlation. Note G = gas mass velocity, Ib/ft -sec. Used by permission of Strigle, R. F. Jr., Packed Tower Design and Applications Random and Structured Packings, 2nd ed. Gulf Publishing Co., (1994) p. 19.

Figure 3.9 Generalized pressure-drop correlation, upper and lower curve limits. (From J. S. Eckert, Design Techniques for Sizing Packed Towers, Chem. Eng. Progress 57(9), 1961. Used by permission of Chemical Engineering Progress.)...

FIGURE 8.18 Generalized pressure-drop correlation for packed towers. Note Parameter of curves is pressure drop in inches of water per foot. Numbers in parentheses are millimeters of water per meter of packed height. 

Calculate the tower diameter. Various methods are available for the design and rating of packed towers. The method shown here is an extension of the CVCL model, which is more fundamentally sound than the generalized pressure drop correlation (GPDC). The basic flooding... 

FIG. 14-55 Generalized pressure drop correlation of Eckert as modified by Strigle. To convert inches HjO to mm HjO, multiply by 83.31. (From Packed Tower Design and Applications by Ralph E. Strigle, Jr Copyri t 1994 by Gulf Publishing Co., Houston, Texas. Used with permission. All Tights reserved.)... 

Over the years, the Sherwood, et al universal flooding correlation, proposed for random dumped tower packings operated in countercurrent flow, has been modified to provide a generalized pressure drop correlation [15]. Leva first modified this correlation to include parameters of constant pressure drop [16]. The abscissa of this correlation is known as the flow parameter ... 

Rgure 1-8. Generalized pressure drop correlation for packed towers. From Sbigle (1994)... 

The generalized method developed by Bravo et al can be used to predict the pressure gradient of structured packings (see Chapter 2) [3]. Normally vacuum towers are not operated in the loading region of the packing, due to the column pressure drop restriction. This correlation is based on data with C values as low as 0.05 ft/s. 

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