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Evaluation of Liquid Film Thickness in Gas-Liquid Annular Flow in Horizontal Pipes Using Three Methods
International Journal of Energy and Environmental Science
Volume 5, Issue 4, July 2020, Pages: 57-65
Received: Mar. 4, 2020; Accepted: Mar. 23, 2020; Published: Sep. 3, 2020
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Osokogwu Uche, Oil & Gas Engineering Centre, Cranfield University, Bedfordshire, UK
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Experimental investigations on annular flow film thickness were conducted using a closed-loop horizontal pipe with an internal diameter of 2-inch (0.0504m). The aim is to progress the understanding of such flow and facilitate the optimum design of hydrocarbon production systems were such flow is encountered. Liquid film thickness was extensively investigated using three methods: the conductance probe sensors installed at the bottom of the pipe, conductivity ring sensors and triangular relationship model. From these methods, liquid film thickness was proven to decrease with increase in superficial gas velocity, while increases with increase in superficial liquid velocity. In comparison, the predicted triangular relationship liquid film thickness matched better with the liquid film thickness obtained from conductance probe sensors at all the flow conditions in the experiments, while the conductivity ring sensor results matched closely at superficial liquid velocity of 0.0505m/s and 0.0714m/s but overestimated at superficial liquid velocity of 0.0903m/s and 0.1851m/s. This has shown the impact of high superficial gas velocity on conductivity ring sensors in accounting for liquid film thickness.
Film Thickness, Gas Velocity, Annular Flow, Sensors, Liquid Entrainment, Flow Rate
To cite this article
Osokogwu Uche, Evaluation of Liquid Film Thickness in Gas-Liquid Annular Flow in Horizontal Pipes Using Three Methods, International Journal of Energy and Environmental Science. Vol. 5, No. 4, 2020, pp. 57-65. doi: 10.11648/j.ijees.20200504.11
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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