Pressure Drop and Weeping

Type Packing Material Nominal Diameter, Dp (in.) Packing Factor, Fp (tf/ft- ) [Pg.455]

For random packings of 1 in. or greater nominal diameter, the viscosity function is [Pg.455]

For a value of Flc Y is computed from Eq. (14.15), Uf s then computed from Eq. (14.16) for a given packing type and size, with Fp from Table 14.1 and using Eqs. (14.17) and (14.18). Then for/ = 0.7, the tower diameter is computed from Eq. (14.14). The tower inside diameter should be at least 10 times the nominal packing diameter and preferably closer to 30 times. [Pg.455]

The determination of the flooding velocity in structured packings is best carried out by using interpolation of the flooding and pressure drop charts for individual structured packings in Chapter 10 of Kister (1992). [Pg.455]

In general, pressure drop per unit height is least for towers with structured packings and greatest with tray towers, with randomly packed towers in between. For sieve trays, the components of the pressure drop are (1) pressure drop through the holes in the tray, which depends [Pg.455]

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