Submerged recirculating liquid jet mixing: A comparison of nozzle orientation and tank aspect ratio

Kennedy, S, Bhattacharjee, P, Eshtiaghi, N and Parthasarathy, R 2018, 'Submerged recirculating liquid jet mixing: A comparison of nozzle orientation and tank aspect ratio', Journal of Chemical Engineering of Japan, vol. 51, no. 2, pp. 166-169.


Document type: Journal Article
Collection: Journal Articles

Title Submerged recirculating liquid jet mixing: A comparison of nozzle orientation and tank aspect ratio
Author(s) Kennedy, S
Bhattacharjee, P
Eshtiaghi, N
Parthasarathy, R
Year 2018
Journal name Journal of Chemical Engineering of Japan
Volume number 51
Issue number 2
Start page 166
End page 169
Total pages 4
Publisher Society of Chemical Engineers
Abstract Liquid jet mixing is a common practice in industry when mechanical mixing becomes unfeasible due to the scale of mixing vessel required. The present study employed a flow visualization technique to investigate the agitation of a non-Newtonian fluid (0.5 wt% xanthan gum solution) using a submerged recirculating jet. Building on the work already published by the authors, the present study seeks to identify how the mixing performance is influenced by two factors: namely, jet-nozzle orientation (upward and downward facing) and mixing vessel aspect ratio (1: 1 and 3: 1). It was found that the nozzle orientation played a much larger role in the 1: 1 setup compared to the 3: 1 setup. The best performing setup for the 0.5 wt% xanthan gum solution was a 1: 1 tank with an upward facing nozzle. It is postulated that this is because the suction in this setup has a net positive effect on the mixing performance; whereas, for other setups, the interplay between jet and suction has a deleterious effect.
Subject Chemical Engineering Design
Water Treatment Processes
Keyword(s) Active Volume
Aspect Ratio
Flow Visualisation
Submerged Jet Mixing
Xanthan Gum
DOI - identifier 10.1252/jcej.17we073
Copyright notice Copyright © 2018 Journal The Society of Chemical of Chemical Engineering Engineers, of Japan
ISSN 0021-9592
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