JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
Transport Phenomena, Fluid Mechanics and Mixing
Critical Impeller Speed for Solid Suspension in Mechanically Agitated Contactors
THANAPALAN MURUGESAN
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2001 Volume 34 Issue 3 Pages 423-429

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Abstract

Experiments were performed in mechanically agitated contactors with 6 (flat) blade turbine impellers, to study the effect of various operating parameters on minimum/critical speed required for complete suspension in two-phase (liquid-solid) as well as three-phase (liquid-solid-gas) systems. Based on 1212 experimental measurements, a unified empirical correlation is proposed, for the estimation of minimum impeller speed for solid suspension in both two-phase and three-phase systems in terms of fundamental, operational and geometrical variables.

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© 2001 The Society of Chemical Engineers, Japan
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