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dc.contributor.authorAli, Syed Muztuza
dc.contributor.authorQamar, Adnan
dc.contributor.authorPhuntsho, Sherub
dc.contributor.authorGhaffour, NorEddine
dc.contributor.authorVrouwenvelder, Johannes S.
dc.contributor.authorShon, Ho Kyong
dc.date.accessioned2020-09-07T06:48:48Z
dc.date.available2020-09-07T06:48:48Z
dc.date.issued2020-09-03
dc.date.submitted2020-05-24
dc.identifier.citationAli, S. M., Qamar, A., Phuntsho, S., Ghaffour, N., Vrouwenvelder, J. S., & Shon, H. K. (2020). Conceptual design of a dynamic turbospacer for efficient low pressure membrane filtration. Desalination, 496, 114712. doi:10.1016/j.desal.2020.114712
dc.identifier.issn0011-9164
dc.identifier.doi10.1016/j.desal.2020.114712
dc.identifier.urihttp://hdl.handle.net/10754/664962
dc.description.abstractThis study presented a conceptual design of a novel dynamic turbospacer to enhance the performance of a low pressure membrane filtration process. It consists of ladder type filaments and a series of microturbine networks within the filament cells. The rotation of the turbines leads to the formation of turbulence in the feed channel that prevents foulants accumulation. Direct numerical simulation (DNS) was conducted to characterize the fluid flow behaviors of the feed channel for the proposed turbospacer and compared with a standard symmetric non-woven feed spacer. Further, their performances were investigated for a low pressure ultrafiltration (UF) process in a lab-scale experimental setup using 2.8 mm thick 3D printed prototypes of the turbospacer and the standard spacer. Experiments for the proof of this concept were conducted at 173 mL/min and 250 mL/min feed solution inlet velocity when Reynolds number of the flow is 160 and 230 respectively. Substantial reductions in fouling effects using the turbospacer was confirmed by the in-situ Optical Coherence Tomography (OCT) scans of the fouling cake layer accumulated over the membrane during the filtration of seawater with high fouling potential. The proposed turbospacer also lowered the average pressure drop by 4 times and enhanced the specific permeate flux by more than 3 times at 173 mL/min inlet flowratre. At the same operating condition, the specific energy consumption for the turbospacer was found about 2.5 folds lower than the standard spacer.
dc.description.sponsorshipThe research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST), Saudi Arabia. The authors acknowledge support from the Water Desalination and Reuse Center (WDRC) staff and KAUST Supercomputing Laboratory to fabricate the 3-D printed spacers and perform the experimental work. This research was supported by the Qatar National Research Fund under its National Priorities Research Program (NPRP 12S-0227-190166).
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0011916420313904
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Desalination. 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 Desalination, [496, , (2020-09-03)] DOI: 10.1016/j.desal.2020.114712 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleConceptual design of a dynamic turbospacer for efficient low pressure membrane filtration
dc.typeArticle
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.identifier.journalDesalination
dc.rights.embargodate2022-09-03
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Civil and Environmental Engineering, University of Technology, Sydney, Post Box 129, Broadway, NSW 2007, Australia.
dc.identifier.volume496
dc.identifier.pages114712
kaust.personQamar, Adnan
kaust.personGhaffour, Noreddine
kaust.personVrouwenvelder, Johannes S.
dc.date.accepted2020-08-16
refterms.dateFOA2020-09-07T06:55:09Z
kaust.acknowledged.supportUnitKAUST Supercomputing Laboratory
kaust.acknowledged.supportUnitWater Desalination and Reuse Center (WDRC)
dc.date.published-online2020-09-03
dc.date.published-print2020-12


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