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Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination

A hypothetical PRO advanced spacer that delivers a 50 % mass transfer enhancement (i.e., 50 % higher Sherwood number) is simulated for a range of feed conditions and membrane properties, to shed insights into the effect of improved PRO spacer on the overall specific energy consumption (SEC) of RO-PR...

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Main Authors: Ng, W.H., Liang, Y. Y., Weihs, G. A. Fimbres
Format: Article
Language:English
English
Published: Elsevier 2023
Subjects:
T Technology (General)
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/39242/1/Quantifying%20the%20potential%20of%20pressure%20retarded%20osmosis.pdf
http://umpir.ump.edu.my/id/eprint/39242/2/Quantifying%20the%20potential%20of%20pressure%20retarded%20osmosis%20advanced%20spacers%20for%20reducing%20specific%20energy%20consumption%20in%20hybrid%20desalination.pdf
http://umpir.ump.edu.my/id/eprint/39242/
https://doi.org/10.1016/j.jwpe.2023.104197
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spelling my.ump.umpir.392422023-11-09T00:39:10Z http://umpir.ump.edu.my/id/eprint/39242/ Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination Ng, W.H. Liang, Y. Y. Weihs, G. A. Fimbres T Technology (General) TP Chemical technology A hypothetical PRO advanced spacer that delivers a 50 % mass transfer enhancement (i.e., 50 % higher Sherwood number) is simulated for a range of feed conditions and membrane properties, to shed insights into the effect of improved PRO spacer on the overall specific energy consumption (SEC) of RO-PRO hybrid desalination. Results show that a large increase in pressure drop in the PRO module has negligible impact on power density (PD) and SEC for RO-PRO. The analysis revealed that the PRO advanced spacer has marginal impact on SEC for a typical current PRO membrane. Even so, the PRO advanced spacer has an important impact in terms of PD, which can increase by 10 %, especially under severe external concentration polarization. The sensitivity analysis demonstrates that the extent of SEC reduction or power density enhancement related to the advanced spacer is most sensitive to the structural parameter. This is because internal concentration polarization is the major cause for osmotic pressure loss in PRO, which limits the potential PRO performance improvements from advanced spacers. Nevertheless, the benefits of PRO advanced spacers can be further exploited through the continuous development of new materials for novel membranes with a reduced structural parameter. Elsevier 2023-10 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/39242/1/Quantifying%20the%20potential%20of%20pressure%20retarded%20osmosis.pdf pdf en http://umpir.ump.edu.my/id/eprint/39242/2/Quantifying%20the%20potential%20of%20pressure%20retarded%20osmosis%20advanced%20spacers%20for%20reducing%20specific%20energy%20consumption%20in%20hybrid%20desalination.pdf Ng, W.H. and Liang, Y. Y. and Weihs, G. A. Fimbres (2023) Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination. Journal of Water Process Engineering, 55 (104197). ISSN 2214-7144. (Published) https://doi.org/10.1016/j.jwpe.2023.104197 10.1016/j.jwpe.2023.104197
institution Universiti Malaysia Pahang Al-Sultan Abdullah
building UMPSA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang Al-Sultan Abdullah
content_source UMPSA Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic T Technology (General)
TP Chemical technology
spellingShingle T Technology (General)
TP Chemical technology
Ng, W.H.
Liang, Y. Y.
Weihs, G. A. Fimbres
Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination
description A hypothetical PRO advanced spacer that delivers a 50 % mass transfer enhancement (i.e., 50 % higher Sherwood number) is simulated for a range of feed conditions and membrane properties, to shed insights into the effect of improved PRO spacer on the overall specific energy consumption (SEC) of RO-PRO hybrid desalination. Results show that a large increase in pressure drop in the PRO module has negligible impact on power density (PD) and SEC for RO-PRO. The analysis revealed that the PRO advanced spacer has marginal impact on SEC for a typical current PRO membrane. Even so, the PRO advanced spacer has an important impact in terms of PD, which can increase by 10 %, especially under severe external concentration polarization. The sensitivity analysis demonstrates that the extent of SEC reduction or power density enhancement related to the advanced spacer is most sensitive to the structural parameter. This is because internal concentration polarization is the major cause for osmotic pressure loss in PRO, which limits the potential PRO performance improvements from advanced spacers. Nevertheless, the benefits of PRO advanced spacers can be further exploited through the continuous development of new materials for novel membranes with a reduced structural parameter.
format Article
author Ng, W.H.
Liang, Y. Y.
Weihs, G. A. Fimbres
author_facet Ng, W.H.
Liang, Y. Y.
Weihs, G. A. Fimbres
author_sort Ng, W.H.
title Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination
title_short Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination
title_full Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination
title_fullStr Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination
title_full_unstemmed Quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination
title_sort quantifying the potential of pressure retarded osmosis advanced spacers for reducing specific energy consumption in hybrid desalination
publisher Elsevier
publishDate 2023
url http://umpir.ump.edu.my/id/eprint/39242/1/Quantifying%20the%20potential%20of%20pressure%20retarded%20osmosis.pdf
http://umpir.ump.edu.my/id/eprint/39242/2/Quantifying%20the%20potential%20of%20pressure%20retarded%20osmosis%20advanced%20spacers%20for%20reducing%20specific%20energy%20consumption%20in%20hybrid%20desalination.pdf
http://umpir.ump.edu.my/id/eprint/39242/
https://doi.org/10.1016/j.jwpe.2023.104197
_version_ 1822923846463782912
score 13.235362

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