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Article: Validation and analysis of forward osmosis CFD model in complex 3D geometries

TitleValidation and analysis of forward osmosis CFD model in complex 3D geometries
Authors
KeywordsComputational Fluid Dynamics (Cfd)
External Concentration Polarization
Forward Osmosis
Internal Concentration Polarization
Model Validation
Three-Dimensional Simulations
Issue Date2012
Citation
Membranes, 2012, v. 2 n. 4, p. 764-782 How to Cite?
AbstractIn forward osmosis (FO), an osmotic pressure gradient generated across a semi-permeable membrane is used to generate water transport from a dilute feed solution into a concentrated draw solution. This principle has shown great promise in the areas of water purification, wastewater treatment, seawater desalination and power generation. To ease optimization and increase understanding of membrane systems, it is desirable to have a comprehensive model that allows for easy investigation of all the major parameters in the separation process. Here we present experimental validation of a computational fluid dynamics (CFD) model developed to simulate FO experiments with asymmetric membranes. Simulations are compared with experimental results obtained from using two distinctly different complex three-dimensional membrane chambers. It is found that the CFD model accurately describes the solute separation process and water permeation through membranes under various flow conditions. It is furthermore demonstrated how the CFD model can be used to optimize membrane geometry in such as way as to promote the mass transfer. © 2012 by the authors; licensee MDPI, Basel, Switzerland.
Persistent Identifierhttp://hdl.handle.net/10722/185439
ISSN
2015 SCImago Journal Rankings: 0.740
References

 

DC FieldValueLanguage
dc.contributor.authorGruber, MFen_US
dc.contributor.authorJohnson, CJen_US
dc.contributor.authorTang, Cen_US
dc.contributor.authorJensen, MHen_US
dc.contributor.authorYde, Len_US
dc.contributor.authorHelixNielsen, Cen_US
dc.date.accessioned2013-07-30T07:32:32Z-
dc.date.available2013-07-30T07:32:32Z-
dc.date.issued2012en_US
dc.identifier.citationMembranes, 2012, v. 2 n. 4, p. 764-782en_US
dc.identifier.issn2077-0375en_US
dc.identifier.urihttp://hdl.handle.net/10722/185439-
dc.description.abstractIn forward osmosis (FO), an osmotic pressure gradient generated across a semi-permeable membrane is used to generate water transport from a dilute feed solution into a concentrated draw solution. This principle has shown great promise in the areas of water purification, wastewater treatment, seawater desalination and power generation. To ease optimization and increase understanding of membrane systems, it is desirable to have a comprehensive model that allows for easy investigation of all the major parameters in the separation process. Here we present experimental validation of a computational fluid dynamics (CFD) model developed to simulate FO experiments with asymmetric membranes. Simulations are compared with experimental results obtained from using two distinctly different complex three-dimensional membrane chambers. It is found that the CFD model accurately describes the solute separation process and water permeation through membranes under various flow conditions. It is furthermore demonstrated how the CFD model can be used to optimize membrane geometry in such as way as to promote the mass transfer. © 2012 by the authors; licensee MDPI, Basel, Switzerland.en_US
dc.languageengen_US
dc.relation.ispartofMembranesen_US
dc.subjectComputational Fluid Dynamics (Cfd)en_US
dc.subjectExternal Concentration Polarizationen_US
dc.subjectForward Osmosisen_US
dc.subjectInternal Concentration Polarizationen_US
dc.subjectModel Validationen_US
dc.subjectThree-Dimensional Simulationsen_US
dc.titleValidation and analysis of forward osmosis CFD model in complex 3D geometriesen_US
dc.typeArticleen_US
dc.identifier.emailTang, C: tangc@hku.hken_US
dc.identifier.authorityTang, C=rp01765en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.3390/membranes2040764en_US
dc.identifier.scopuseid_2-s2.0-84871630110en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84871630110&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume2en_US
dc.identifier.issue4en_US
dc.identifier.spage764en_US
dc.identifier.epage782en_US
dc.identifier.scopusauthoridGruber, MF=55538542300en_US
dc.identifier.scopusauthoridJohnson, CJ=55538613900en_US
dc.identifier.scopusauthoridTang, C=35489259800en_US
dc.identifier.scopusauthoridJensen, MH=7401787416en_US
dc.identifier.scopusauthoridYde, L=6507055635en_US
dc.identifier.scopusauthoridHelixNielsen, C=36767484600en_US

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