eprintid: 4012
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/40/12
datestamp: 2023-11-09 15:52:17
lastmod: 2023-11-09 15:52:17
status_changed: 2023-11-09 15:48:07
type: article
metadata_visibility: show
creators_name: Shakaib, M.
creators_name: Hasani, S.M.F.
creators_name: Ehtesham-ul Haque, M.
creators_name: Ahmed, I.
creators_name: Yunus, R.M.
title: A CFD study of heat transfer through spacer channels of membrane distillation modules
ispublished: pub
note: cited By 25
abstract: 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. © 2013 Copyright Balaban Desalination Publications.
date: 2013
publisher: Taylor and Francis Inc.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877887945&doi=10.1080%2f19443994.2013.789234&partnerID=40&md5=446c84b3869e84cdb8815a9ce2e4d98b
id_number: 10.1080/19443994.2013.789234
full_text_status: none
publication: Desalination and Water Treatment
volume: 51
number: 16-18
pagerange: 3662-3674
refereed: TRUE
issn: 19443994
citation:   Shakaib, M. and Hasani, S.M.F. and Ehtesham-ul Haque, M. and Ahmed, I. and Yunus, R.M.  (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 19443994