Comparative assessment of the effects of 3D printed feed spacers on process performance in MD systems

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dc.contributor.author Thomas, Navya
dc.contributor.author Swaminathan, Jaichander
dc.contributor.author Zaragoza, Guillermo
dc.contributor.author Abu Al-Rub, Rashid K.
dc.contributor.author Lienhard V, John H.
dc.contributor.author Arafat, Hassan A.
dc.coverage.spatial United States of America
dc.date.accessioned 2021-02-05T14:54:03Z
dc.date.available 2021-02-05T14:54:03Z
dc.date.issued 2021-05
dc.identifier.citation Thomas, Navya; Swaminathan, Jaichander; Zaragoza, Guillermo; Abu Al-Rub, Rashid K.; Lienhard V, John H. and Arafat, Hassan A., "Comparative assessment of the effects of 3D printed feed spacers on process performance in MD systems", Desalination, DOI: 10.1016/j.desal.2021.114940, vol. 503, May 2021. en_US
dc.identifier.issn 0011-9164
dc.identifier.uri https://doi.org/10.1016/j.desal.2021.114940
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/6260
dc.description.abstract In this study, process enhancements achieved by the use of 3D printed feed spacers based on triply periodic minimal surfaces (TPMS) were comparatively assessed using the two most common membrane distillation (MD) configurations: air gap (AGMD) and direct contact (DCMD). The MD performance was assessed based on the impact of spacer design (TPMS vs. commercial spacer) on flux and feed channel pressure drop, and their consequent impact on the levelized cost of water (COW). The studied spacer architectures led to a minimal improvement (?17%) in AGMD flux, much lower than that achieved in DCMD (?57%). Consequently, for a waste heat-operated MD process, the spacer-induced channel pressure drop became the most influential cost bottleneck on COW. Generally, the contribution of the pumping cost to the total operating cost was found to be greater for DCMD than AGMD. Thus, the COW of a waste heat operated DCMD is more sensitive to a decrease in spacer-induced channel pressure drop than in an AGMD. For an MD process operated with additional heat cost, the flux improvement achieved using TPMS spacers reduces the thermal energy component of the operating cost. Ultimately, this predominantly contributes to a lower COW.
dc.description.statementofresponsibility by NavyaThomas, Jaichander Swaminathan, Guillermo Zaragoza, Rashid K.Abu Al-Rub, John H.Lienhard V and Hassan A.Arafata
dc.language.iso en_US en_US
dc.publisher Elsevier en_US
dc.subject Triply periodic minimal surfaces en_US
dc.subject Feed spacers en_US
dc.subject Membrane distillation en_US
dc.subject Cost analysis en_US
dc.subject 3D printing en_US
dc.title Comparative assessment of the effects of 3D printed feed spacers on process performance in MD systems en_US
dc.type Article en_US
dc.relation.journal Desalination


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