Drag reduction in co-current down flow packed column using xanthan gum

Iyyaswami, Regupathi and P. E, JagadeeshBabu and M, Chitra and T., Murugesan (2010) Drag reduction in co-current down flow packed column using xanthan gum. Korean J. Chem. Eng.,, 27 (4). pp. 1205-1212. ISSN ISSN: 0256-1115 (print version);ISSN: 1975-7220 (electronic version)

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Official URL: http://www.springer.com/chemistry/journal/11814


Abstract−Drag reduction is one of the most important techniques for reducing energy consumption in a packed bed contactor. The present work involves an experimental investigation on flow regime transition for air-water system with and without drag reducing agent (DRA), two-phase pressure drop, friction factor and drag reduction using xanthan gum as DRA. Drag reduction was quantified from the two-phase pressure drop data. Based on the present observations it was found that the percentage drag reduction increases with an increase in the concentration of DRA and it is only effective in the range of 300 ppm to 800 ppm. The experimental results indicate that a maximum of 80% drag reduction was achievable using xanthan gum (800 ppm) as DRA. Furthermore, the experimental data were validated with the available literature correlations.

Item Type:Article
Subjects:T Technology > TP Chemical technology
Departments / MOR / COE:Departments > Chemical Engineering
ID Code:2680
Deposited By: Prof Dr Thanabalan Murugesan
Deposited On:05 Aug 2010 04:05
Last Modified:19 Jan 2017 08:23

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