Article
CORRELATION AND PREDICTION OF PARTICLE AXIAL VELOCITY IN A SCHILDKNECHT-TYPE COLUMN
Industrial & Engineering Chemistry Process Design and Development
— 1986
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Published in
April 1986
Abstract
Experimental data on solid particle velocities were obtained from a 5 cm i.d. Schildknecht-type column by using model systems. The variables tested were the helix angular speed, the solid concentration, the particle diameter, and the viscosity of the supporting fluid. Two transport regimes were observed depending on the ratio V,/ V,, where V, is the particle free-settling velocity and V, the apparent downward helix velocity. For both regimes, data were correlated by using a velocity equation. For V, > V, the experimental data fit a correlation reported in the literature if suitable frictional coefficients are inserted. For V, < V,, an empirical correlation has been developed to describe quantitatively the crystals axial velocity which takes into account the helix speed and the system's physical and transport properties.
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Title of the publication container
Industrial & Engineering Chemistry Process Design and Development
First page or article number
449
Last page
455
Volume
25
Issue
2
Fields of Science and Technology (FOS)
chemical-engineering - Chemical engineering
Publication language (ISO code)
eng - English
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