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The control and maintenance of desired flow patterns in bends of different orientations

Zhao, D.; Omar, R.; Abdulkadir, M.; Abdulkareem, Lokman A.; Azzi, Abdelwahid; Saidj, Faiza; Hernandez Perez, V.; Hewakandamby, Buddhika N.; Azzopardi, Barry J.

Authors

D. Zhao

R. Omar

M. Abdulkadir

Lokman A. Abdulkareem

Abdelwahid Azzi

Faiza Saidj

V. Hernandez Perez

Buddhika N. Hewakandamby

Barry J. Azzopardi



Abstract

Multiphase flows are common in industrial settings and bends in pipe lines cannot be avoided due to space limitations. Gas-liquid two phase flows could form material discontinuities that could have adverse effect on productivity and the pipe network due to sudden variations resulting due to the rapid momentum flux variations at fittings such as bends. Research into gas-liquid flow and bends can be motivated by the effect of the bend on the flow downstream of it which could alter the flow pattern occurring and the performance of downstream equipment. Alternatively, the interest might come from what occurs in the bend itself, there could be dryout of the film on the walls and consequent damage to the heat transfer equipment. Here we present measurements made with a number of accurate and fast responding sensors on three cases, two on the effect of the bend and one considering effects in the bend. The results show that the flow transformations occur in two phase flows depending on the orientation of the bend and the change could be captured using fast sweeping measurement techniques. We present the evidence of effectiveness of several types of measurement techniques that could fit into various combinations of phases. The results, point to how to achieve certain flow patterns. Also recommendations are provided regarding the position of any sensor installed to determine flow pattern.

Citation

Zhao, D., Omar, R., Abdulkadir, M., Abdulkareem, L. A., Azzi, A., Saidj, F., …Azzopardi, B. J. (in press). The control and maintenance of desired flow patterns in bends of different orientations. Flow Measurement and Instrumentation, 53(B), https://doi.org/10.1016/j.flowmeasinst.2016.09.003

Journal Article Type Article
Acceptance Date Sep 14, 2016
Online Publication Date Sep 15, 2016
Deposit Date Oct 19, 2016
Publicly Available Date Mar 29, 2024
Journal Flow Measurement and Instrumentation
Print ISSN 0955-5986
Electronic ISSN 1873-6998
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 53
Issue B
DOI https://doi.org/10.1016/j.flowmeasinst.2016.09.003
Keywords Gas-liquid; bends; void fraction; electrical tomography; conductance
Public URL https://nottingham-repository.worktribe.com/output/817839
Publisher URL http://www.sciencedirect.com/science/article/pii/S0955598616301431

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