Continuous phase axial mixing in rotary disk contactors

Venkataramana, J. ; Degaleesan, T. E. ; Laddha, G. S. (1980) Continuous phase axial mixing in rotary disk contactors Canadian Journal of Chemical Engineering, 58 (2). pp. 206-211. ISSN 0008-4034

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This paper presents a review of important investigations on axial mixing in the continuous phase in rotary disk contactors (RDC) and analyses the various literature data in terms of the flow number (DR N/ue) and a geometry factor Gf. A new model equation has been developed to represent continuous phase axial mixing in the RDC taking into account the factors affecting the recirculation flow within the compartment and the main flow through the compartment in terms of disk-Reynolds number and modified tube-Reynolds number respectively. A satisfactory expression for Gf has been obtained on the basis of the present proposed model and analysis of data of available literature and those of the present work, covering laboratory and industrial size columns of 10 different investigators varying from 3.5 cm to 218 cm dia involving 19 different column geometries. The following forms of generalized correlation for continuous phase axial mixing in RDC have been suggested. (a) Ec/ucZc=0.5 + 0.028(DRN/uc) [Ds-0.5 Dr/Dr] (b) Ec/ucZc = 0.5 + 0.028 [(Re)R/(ReT)] (Ds/DR) - 0.5 (Dr/DR)]

Item Type:Article
Source:Copyright of this article belongs to Canadian Society for Chemical Engineering.
ID Code:18650
Deposited On:17 Nov 2010 12:38
Last Modified:04 Jun 2011 10:23

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