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primary topic: Numerical investigation of gas separation in T-junction

Numerical investigation of gas separation in T-junction
type: AcademicArticle
type: Article
abstract: T-junctions are commonly used in distributing two-phase flow by piping networks especially in oil and gas industries. Understanding the behavior of two-phase flow through a T-junction is very important as it has significant effect on the operation, maintenance and efficiency of the components downstream from the junction. The objective of this paper is to determine the effect of ratio of side arm to main arm diameters, initial inlet gas saturation and gas density variation on passive separation performance in T-junction. Via computational fluid dynamics tool, preliminary investigation found that separation efficiency is proportional to diameter ratio in between 0.5-0.75. Beyond diameter ratio 0.75, there is a flattening of separation efficiency. The change of fraction of gas taken off is inversely proportional to initial inlet gas saturation and the trend is almost inversely linear for diameter ratio 0.5. Beyond that, the relationship between initial inlet gas saturation and separation efficiency exhibits mild non-linearity behavior. For diameter ratios 0.75-1.0, the fraction of gas taken off is almost similar as far as the initial gas saturation is concerned. Gas density affects phase separation efficiency when the initial gas saturation is low. Interestingly, the effects of the inlet flow velocity and gravity distribution is almost negligible relative to the mass split ratio, side to main arm diameter ratio, initial gas saturation and density differential. © 2015 AIP Publishing LLC.
date: 2015
volume: 1660
is part of: AIP Conference Proceedings
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ConferenceItemEPrint
is part of: repository

American Institute of Physics Inc.
type: Organization

AIP Conference Proceedings
type: Collection
issn: 0094243X

W. Pao
type: Person
given name: W.
family name: Pao

L.H. Ming
type: Person
given name: L.H.
family name: Ming

F.M. Hashim
type: Person
given name: F.M.
family name: Hashim

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primary topic: Numerical investigation of gas separation in T-junction