Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity

One of the most noteworthy achievements in reverse osmosis (RO) efficiency is the improvement in membrane permeance. Although current membranes offer higher permeance (and flux) than older RO membranes, increases in permeate flux are limited by concentration polarisation (CP) and fouling. Therefore,...

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Main Author:	Lim, Soon Yee
Format:	Thesis
Language:	English
Published:	2020
Subjects:	QD Chemistry
Online Access:	http://umpir.ump.edu.my/id/eprint/35244/1/Numerical%20simulation%20studies%20of%20the%20effect%20of%20membrane%20permeance%20on%20mass%20transfer.wm.pdf
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spelling	my-ump-ir.352442023-05-24T03:36:44Z Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity 2020-12 Lim, Soon Yee QD Chemistry TA Engineering (General). Civil engineering (General) One of the most noteworthy achievements in reverse osmosis (RO) efficiency is the improvement in membrane permeance. Although current membranes offer higher permeance (and flux) than older RO membranes, increases in permeate flux are limited by concentration polarisation (CP) and fouling. Therefore, innovation is needed to reduce CP to further increase permeate flux. An unsteady forced slip velocity can disrupt the boundary layer, thus reducing CP. This paper uses Computational Fluid Dynamics (CFD) to analyse the effect of membrane permeance on the resonant frequency for an unsteady forced slip velocity, as well as the resulting mass transfer enhancement. The results show that the resonant frequency of the unsteady forced slip velocity is not affected by the membrane permeance. Although the results show a peak in the mass transfer enhancement factor for permeance values in the range typically used for brackish water, In addition, this thesis found that that at any membrane permeance, slip velocity can increase the maximum shear stress ( 2020-12 Thesis http://umpir.ump.edu.my/id/eprint/35244/ http://umpir.ump.edu.my/id/eprint/35244/1/Numerical%20simulation%20studies%20of%20the%20effect%20of%20membrane%20permeance%20on%20mass%20transfer.wm.pdf pdf en public masters Universiti Malaysia Pahang Faculty of Chemical and Process Engineering Technology Liang Yong, Yeow
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
collection	UMPSA Institutional Repository
language	English
advisor	Liang Yong, Yeow
topic	QD Chemistry QD Chemistry
spellingShingle	QD Chemistry QD Chemistry Lim, Soon Yee Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity
description	One of the most noteworthy achievements in reverse osmosis (RO) efficiency is the improvement in membrane permeance. Although current membranes offer higher permeance (and flux) than older RO membranes, increases in permeate flux are limited by concentration polarisation (CP) and fouling. Therefore, innovation is needed to reduce CP to further increase permeate flux. An unsteady forced slip velocity can disrupt the boundary layer, thus reducing CP. This paper uses Computational Fluid Dynamics (CFD) to analyse the effect of membrane permeance on the resonant frequency for an unsteady forced slip velocity, as well as the resulting mass transfer enhancement. The results show that the resonant frequency of the unsteady forced slip velocity is not affected by the membrane permeance. Although the results show a peak in the mass transfer enhancement factor for permeance values in the range typically used for brackish water, In addition, this thesis found that that at any membrane permeance, slip velocity can increase the maximum shear stress (
format	Thesis
qualification_level	Master's degree
author	Lim, Soon Yee
author_facet	Lim, Soon Yee
author_sort	Lim, Soon Yee
title	Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity
title_short	Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity
title_full	Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity
title_fullStr	Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity
title_full_unstemmed	Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity
title_sort	numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity
granting_institution	Universiti Malaysia Pahang
granting_department	Faculty of Chemical and Process Engineering Technology
publishDate	2020
url	http://umpir.ump.edu.my/id/eprint/35244/1/Numerical%20simulation%20studies%20of%20the%20effect%20of%20membrane%20permeance%20on%20mass%20transfer.wm.pdf
_version_	1783732223858442240

Numerical simulation studies of the effect of membrane permeance on mass transfer enhancement driven by transient slip velocity

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