Abstract
Effect of liquid density on axial dispersion in liquid-fluidized beds was examined by a pulse-response technique. Glass beads of 0.5 mm diameter were fluidized in a 5.15 cm column at void fractions of 0.55 to 0.85 with KBr solutions of density 0.995 to 1.30 g/cm 3 . Axial dispersion model and an s-domain graphical technique for parameter estimation were successfully employed. The axial Peclet number was correlated empirically by a simple equation involving Reynolds number and ratio of liquid-to-particle density.
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