Experimental and numerical characterization of the water flow in spacer-filled channels of spiral-wound membranes

Handle URI:
http://hdl.handle.net/10754/578847
Title:
Experimental and numerical characterization of the water flow in spacer-filled channels of spiral-wound membranes
Authors:
Bucs, Szilard; Valladares Linares, Rodrigo ( 0000-0003-3790-3249 ) ; Marston, Jeremy O.; Radu, Andrea I.; Vrouwenvelder, Johannes S. ( 0000-0003-2668-2057 ) ; Picioreanu, Cristian
Abstract:
Micro-scale flow distribution in spacer-filled flow channels of spiral-wound membrane modules was determined with a particle image velocimetry system (PIV), aiming to elucidate the flow behaviour in spacer-filled flow channels. Two-dimensional water velocity fields were measured in a flow cell (representing the feed spacer-filled flow channel of a spiral wound reverse osmosis membrane module without permeate production) at several planes throughout the channel height. At linear flow velocities (volumetric flow rate per cross-section of the flow channel considering the channel porosity, also described as crossflow velocities) used in practice (0.074 and 0.163 m∙s-1) the recorded flow was laminar with only slight unsteadiness in the upper velocity limit. At higher linear flow velocity (0.3 m∙s-1) the flow was observed to be unsteady and with recirculation zones. Measurements made at different locations in the flow cell exhibited very similar flow patterns within all feed spacer mesh elements, thus revealing the same hydrodynamic conditions along the length of the flow channel. Three-dimensional (3-D) computational fluid dynamics simulations were performed using the same geometries and flow parameters as the experiments, based on steady laminar flow assumption. The numerical results were in good agreement (0.85-0.95 Bray-Curtis similarity) with the measured flow fields at linear velocities of 0.074 and 0.163 m∙s-1, thus supporting the use of model-based studies in the optimization of feed spacer geometries and operational conditions of spiral wound membrane systems.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Experimental and numerical characterization of the water flow in spacer-filled channels of spiral-wound membranes 2015 Water Research
Publisher:
Elsevier BV
Journal:
Water Research
Issue Date:
25-Sep-2015
DOI:
10.1016/j.watres.2015.09.036
Type:
Article
ISSN:
00431354
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0043135415302499
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorBucs, Szilarden
dc.contributor.authorValladares Linares, Rodrigoen
dc.contributor.authorMarston, Jeremy O.en
dc.contributor.authorRadu, Andrea I.en
dc.contributor.authorVrouwenvelder, Johannes S.en
dc.contributor.authorPicioreanu, Cristianen
dc.date.accessioned2015-09-29T06:52:05Zen
dc.date.available2015-09-29T06:52:05Zen
dc.date.issued2015-09-25en
dc.identifier.citationExperimental and numerical characterization of the water flow in spacer-filled channels of spiral-wound membranes 2015 Water Researchen
dc.identifier.issn00431354en
dc.identifier.doi10.1016/j.watres.2015.09.036en
dc.identifier.urihttp://hdl.handle.net/10754/578847en
dc.description.abstractMicro-scale flow distribution in spacer-filled flow channels of spiral-wound membrane modules was determined with a particle image velocimetry system (PIV), aiming to elucidate the flow behaviour in spacer-filled flow channels. Two-dimensional water velocity fields were measured in a flow cell (representing the feed spacer-filled flow channel of a spiral wound reverse osmosis membrane module without permeate production) at several planes throughout the channel height. At linear flow velocities (volumetric flow rate per cross-section of the flow channel considering the channel porosity, also described as crossflow velocities) used in practice (0.074 and 0.163 m∙s-1) the recorded flow was laminar with only slight unsteadiness in the upper velocity limit. At higher linear flow velocity (0.3 m∙s-1) the flow was observed to be unsteady and with recirculation zones. Measurements made at different locations in the flow cell exhibited very similar flow patterns within all feed spacer mesh elements, thus revealing the same hydrodynamic conditions along the length of the flow channel. Three-dimensional (3-D) computational fluid dynamics simulations were performed using the same geometries and flow parameters as the experiments, based on steady laminar flow assumption. The numerical results were in good agreement (0.85-0.95 Bray-Curtis similarity) with the measured flow fields at linear velocities of 0.074 and 0.163 m∙s-1, thus supporting the use of model-based studies in the optimization of feed spacer geometries and operational conditions of spiral wound membrane systems.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0043135415302499en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Water Research. 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 Water Research, 25 September 2015. DOI:10.1016/j.watres.2015.09.036en
dc.subjectParticle image velocimetry (PIV)en
dc.subjectComputational fluid dynamics (CFD)en
dc.subjectSpaceren
dc.subjectSpiral-wound membrane moduleen
dc.subjectMembrane filtrationen
dc.titleExperimental and numerical characterization of the water flow in spacer-filled channels of spiral-wound membranesen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalWater Researchen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Chemical Engineering, Texas Tech University, Lubbock, TX 79409, USAen
dc.contributor.institutionDepartment of Biotechnology, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 67, 2628 BC Delft, The Netherlandsen
dc.contributor.institutionChair of Building Physics, Swiss Federal Institute of Technology Zürich (ETHZ), Stefano-Franscini-Platz 5, 8093 Zürich, Switzerlanden
dc.contributor.institutionWetsus, European Centre of Excellence of Sustainable Water Technology, Oostergoweg 9, 8911 MA Leeuwarden, The Netherlandsen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorBucs, Szilarden
kaust.authorValladares Linares, Rodrigoen
kaust.authorVrouwenvelder, Johannes S.en
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