A CFD study of heat transfer through spacer channels of membrane distillation modules

The computational fluid dynamics modeling in this paper examines transient flow and temperature patterns in spacer-filled membrane distillation channels. The instantaneous velocity profiles at various time steps show that at higher Reynolds number the vortices emerge behind spacer filaments, move al...

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Main Authors:	Shakaib, M., S. M. F., Hasani, Haque, M. Ehtesham-ul, Ahmed, Iqbal, R. M., Yunus
Format:	Article
Language:	English
Published:	Taylor & Francis 2013
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/20642/ http://umpir.ump.edu.my/id/eprint/20642/ http://umpir.ump.edu.my/id/eprint/20642/ http://umpir.ump.edu.my/id/eprint/20642/1/A%20CFD%20study%20of%20heat%20transfer%20through%20spacer%20channels-fkksa1.pdf

id	ump-20642
recordtype	eprints
spelling	ump-206422018-03-01T01:26:23Z http://umpir.ump.edu.my/id/eprint/20642/ A CFD study of heat transfer through spacer channels of membrane distillation modules Shakaib, M. S. M. F., Hasani Haque, M. Ehtesham-ul Ahmed, Iqbal R. M., Yunus TP Chemical technology The computational fluid dynamics modeling in this paper examines transient flow and temperature patterns in spacer-filled membrane distillation channels. The instantaneous velocity profiles at various time steps show that at higher Reynolds number the vortices emerge behind spacer filaments, move along with the flow and then finally diminish. This unsteady behavior causes variation in local temperatures and heat transfer coefficients with time. The temperature polarization is usually low near the locations where high velocity region hits the top or attaches to the bottom surface. The region near the filament at the bottom is a stagnant zone and an area of higher temperature polarization at all times. The effect of filament spacing is also investigated. At low Reynolds number and a small filament spacing of 2 mm, maximum values for average shear stress and heat transfer coefficient are obtained. When Reynolds number is high, this spacer becomes unsuitable due to smaller magnitudes of these parameters. The overall analysis shows that the spacers with relatively higher spacing, such as 3 or 4 mm are more appropriate for use in membrane distillation channels. Taylor & Francis 2013 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/20642/1/A%20CFD%20study%20of%20heat%20transfer%20through%20spacer%20channels-fkksa1.pdf Shakaib, M. and S. M. F., Hasani and Haque, M. Ehtesham-ul and Ahmed, Iqbal and R. M., Yunus (2013) A CFD study of heat transfer through spacer channels of membrane distillation modules. Desalination and Water Treatment, 51 (16-18). pp. 3662-3674. ISSN 1944-3994 https://doi.org/10.1080/19443994.2013.789234 doi: 10.1080/19443994.2013.789234
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Shakaib, M. S. M. F., Hasani Haque, M. Ehtesham-ul Ahmed, Iqbal R. M., Yunus A CFD study of heat transfer through spacer channels of membrane distillation modules
description	The computational fluid dynamics modeling in this paper examines transient flow and temperature patterns in spacer-filled membrane distillation channels. The instantaneous velocity profiles at various time steps show that at higher Reynolds number the vortices emerge behind spacer filaments, move along with the flow and then finally diminish. This unsteady behavior causes variation in local temperatures and heat transfer coefficients with time. The temperature polarization is usually low near the locations where high velocity region hits the top or attaches to the bottom surface. The region near the filament at the bottom is a stagnant zone and an area of higher temperature polarization at all times. The effect of filament spacing is also investigated. At low Reynolds number and a small filament spacing of 2 mm, maximum values for average shear stress and heat transfer coefficient are obtained. When Reynolds number is high, this spacer becomes unsuitable due to smaller magnitudes of these parameters. The overall analysis shows that the spacers with relatively higher spacing, such as 3 or 4 mm are more appropriate for use in membrane distillation channels.
format	Article
author	Shakaib, M. S. M. F., Hasani Haque, M. Ehtesham-ul Ahmed, Iqbal R. M., Yunus
author_facet	Shakaib, M. S. M. F., Hasani Haque, M. Ehtesham-ul Ahmed, Iqbal R. M., Yunus
author_sort	Shakaib, M.
title	A CFD study of heat transfer through spacer channels of membrane distillation modules
title_short	A CFD study of heat transfer through spacer channels of membrane distillation modules
title_full	A CFD study of heat transfer through spacer channels of membrane distillation modules
title_fullStr	A CFD study of heat transfer through spacer channels of membrane distillation modules
title_full_unstemmed	A CFD study of heat transfer through spacer channels of membrane distillation modules
title_sort	cfd study of heat transfer through spacer channels of membrane distillation modules
publisher	Taylor & Francis
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/20642/ http://umpir.ump.edu.my/id/eprint/20642/ http://umpir.ump.edu.my/id/eprint/20642/ http://umpir.ump.edu.my/id/eprint/20642/1/A%20CFD%20study%20of%20heat%20transfer%20through%20spacer%20channels-fkksa1.pdf
first_indexed	2023-09-18T22:29:53Z
last_indexed	2023-09-18T22:29:53Z
_version_	1777416214617784320

A CFD study of heat transfer through spacer channels of membrane distillation modules

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