File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: A conceptual design of spacers with hairy structures for membrane processes

TitleA conceptual design of spacers with hairy structures for membrane processes
Authors
KeywordsFlux enhancement
Hairy structures
Membrane processes
Spacer design
Vibration spectral analysis
Issue Date2016
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci
Citation
Journal of Membrane Science, 2016, v. 510, p. 314-325 How to Cite?
AbstractThe development of membrane technology requires spacers that can significantly enhance the mass-transfer rate while avoiding a severe pressure drop across the membrane module. A potential solution to this challenge is to introduce some flexible and dynamic structures into the spacer mesh. The current work was motivated to explore a conceptual design of spacers with hairy structures. The hairy structures were simulated using highly flexible nylon fibers that were fixed on a well-designed framework. The effects of fiber asymmetry and spacing on the vibrations were discussed in terms of the observations via a high speed camera. A variety of spacer prototypes were employed in a forward osmosis process to examine the performance of the hairy structures. The experimental results indicate that fiber vibrations could have a great impact on the mass transfer in the vicinity of the membrane surface and enhance the filtration flux (up to ~20%). This fundamental study not only provides insight into the mechanisms underlying the complex fiber-flow interactions but also charts the direction for future hairy spacer design.
Persistent Identifierhttp://hdl.handle.net/10722/247297
ISSN
2023 Impact Factor: 8.4
2023 SCImago Journal Rankings: 1.848
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, W-
dc.contributor.authorChen, KK-
dc.contributor.authorWang, Y-
dc.contributor.authorKrantz, WB-
dc.contributor.authorFane, AG-
dc.contributor.authorTang, C-
dc.date.accessioned2017-10-18T08:25:11Z-
dc.date.available2017-10-18T08:25:11Z-
dc.date.issued2016-
dc.identifier.citationJournal of Membrane Science, 2016, v. 510, p. 314-325-
dc.identifier.issn0376-7388-
dc.identifier.urihttp://hdl.handle.net/10722/247297-
dc.description.abstractThe development of membrane technology requires spacers that can significantly enhance the mass-transfer rate while avoiding a severe pressure drop across the membrane module. A potential solution to this challenge is to introduce some flexible and dynamic structures into the spacer mesh. The current work was motivated to explore a conceptual design of spacers with hairy structures. The hairy structures were simulated using highly flexible nylon fibers that were fixed on a well-designed framework. The effects of fiber asymmetry and spacing on the vibrations were discussed in terms of the observations via a high speed camera. A variety of spacer prototypes were employed in a forward osmosis process to examine the performance of the hairy structures. The experimental results indicate that fiber vibrations could have a great impact on the mass transfer in the vicinity of the membrane surface and enhance the filtration flux (up to ~20%). This fundamental study not only provides insight into the mechanisms underlying the complex fiber-flow interactions but also charts the direction for future hairy spacer design.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci-
dc.relation.ispartofJournal of Membrane Science-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectFlux enhancement-
dc.subjectHairy structures-
dc.subjectMembrane processes-
dc.subjectSpacer design-
dc.subjectVibration spectral analysis-
dc.titleA conceptual design of spacers with hairy structures for membrane processes-
dc.typeArticle-
dc.identifier.emailTang, C: tangc@hku.hk-
dc.identifier.authorityTang, C=rp01765-
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.memsci.2016.03.021-
dc.identifier.scopuseid_2-s2.0-84962591024-
dc.identifier.hkuros281270-
dc.identifier.volume510-
dc.identifier.spage314-
dc.identifier.epage325-
dc.identifier.isiWOS:000375127300032-
dc.publisher.placeNetherlands-
dc.identifier.issnl0376-7388-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats