Triple-bore hollow fiber membrane contactor for liquid desiccant based air dehumidification

Handle URI:
http://hdl.handle.net/10754/609004
Title:
Triple-bore hollow fiber membrane contactor for liquid desiccant based air dehumidification
Authors:
Bettahalli, N.M. Srivatsa; Lefers, Ryan; Fedoroff, Nina V.; Leiknes, TorOve ( 0000-0003-4046-5622 ) ; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
Dehumidification is responsible for a large part of the energy consumption in cooling systems in high humidity environments worldwide. Improving efficiency is therefore essential. Liquid desiccants offer a promising solution for dehumidification, as desired levels of humidity removal could be easily regulated. The use of membrane contactors in combination with liquid desiccant is attractive for dehumidification because they prevent direct contact between the humid air and the desiccant, removing both the potential for desiccant carryover to the air and the potential for contamination of the liquid desiccant by dust and other airborne materials, as well as minimizing corrosion. However, the expected additional mass transport barrier of the membrane surface can lower the expected desiccation rate per unit of desiccant surface area. In this context, hollow fiber membranes present an attractive option for membrane liquid desiccant contactors because of their high surface area per unit volume. We demonstrate in this work the performance of polyvinylidene fluoride (PVDF) based triple-bore hollow fiber membranes as liquid desiccant contactors, which are permeable to water vapor but impermeable to liquid water, for dehumidification of hot and humid air.
KAUST Department:
Biological and Environmental Sciences and Engineering (BESE) Division; Water Desalination & Reuse Research Cntr
Citation:
Triple-bore hollow fiber membrane contactor for liquid desiccant based air dehumidification 2016, 514:135 Journal of Membrane Science
Publisher:
Elsevier BV
Journal:
Journal of Membrane Science
Issue Date:
26-Apr-2016
DOI:
10.1016/j.memsci.2016.04.059
Type:
Article
ISSN:
03767388
Sponsors:
The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). The authors would also thank colleagues from Nanostructured Polymeric Membrane (NPM) group, as well as Water Desalination and Reuse Center (WDRC), and KAUST's Core Labs for their help on equipment and analysis.
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0376738816302976
Appears in Collections:
Articles; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorBettahalli, N.M. Srivatsaen
dc.contributor.authorLefers, Ryanen
dc.contributor.authorFedoroff, Nina V.en
dc.contributor.authorLeiknes, TorOveen
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2016-05-11T07:30:07Zen
dc.date.available2016-05-11T07:30:07Zen
dc.date.issued2016-04-26en
dc.identifier.citationTriple-bore hollow fiber membrane contactor for liquid desiccant based air dehumidification 2016, 514:135 Journal of Membrane Scienceen
dc.identifier.issn03767388en
dc.identifier.doi10.1016/j.memsci.2016.04.059en
dc.identifier.urihttp://hdl.handle.net/10754/609004en
dc.description.abstractDehumidification is responsible for a large part of the energy consumption in cooling systems in high humidity environments worldwide. Improving efficiency is therefore essential. Liquid desiccants offer a promising solution for dehumidification, as desired levels of humidity removal could be easily regulated. The use of membrane contactors in combination with liquid desiccant is attractive for dehumidification because they prevent direct contact between the humid air and the desiccant, removing both the potential for desiccant carryover to the air and the potential for contamination of the liquid desiccant by dust and other airborne materials, as well as minimizing corrosion. However, the expected additional mass transport barrier of the membrane surface can lower the expected desiccation rate per unit of desiccant surface area. In this context, hollow fiber membranes present an attractive option for membrane liquid desiccant contactors because of their high surface area per unit volume. We demonstrate in this work the performance of polyvinylidene fluoride (PVDF) based triple-bore hollow fiber membranes as liquid desiccant contactors, which are permeable to water vapor but impermeable to liquid water, for dehumidification of hot and humid air.en
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST). The authors would also thank colleagues from Nanostructured Polymeric Membrane (NPM) group, as well as Water Desalination and Reuse Center (WDRC), and KAUST's Core Labs for their help on equipment and analysis.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0376738816302976en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Membrane Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Membrane Science, 26 April 2016. DOI: 10.1016/j.memsci.2016.04.059en
dc.subjectHollow fiber membraneen
dc.subjectAir dehumidificationen
dc.subjectMembrane contactoren
dc.subjectLiquid desiccanten
dc.titleTriple-bore hollow fiber membrane contactor for liquid desiccant based air dehumidificationen
dc.typeArticleen
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentWater Desalination & Reuse Research Cntren
dc.identifier.journalJournal of Membrane Scienceen
dc.eprint.versionPost-printen
dc.contributor.institutionPenn State University, University Park, PA 16802, USAen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorBettahalli, N.M. Srivatsaen
kaust.authorLefers, Ryanen
kaust.authorFedoroff, Nina V.en
kaust.authorLeiknes, TorOveen
kaust.authorNunes, Suzana Pereiraen
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