Numerical investigation of the effects of geometric structure of microchannel heat sink on flow characteristics and heat transfer performance

dc.contributor.authorBayrak, Ergin
dc.contributor.authorOlcay, Ali Bahadır
dc.contributor.authorSerincan, Mustafa Fazıl
dc.date.accessioned2021-02-19T21:16:29Z
dc.date.available2021-02-19T21:16:29Z
dc.date.issued2019
dc.departmentALKÜ
dc.descriptionOlcay, Ali Bahadir/0000-0003-0995-9173; Serincan, Mustafa/0000-0003-3525-2390
dc.description.abstractA numerical study was performed to investigate the thermal-hydraulic performance of different microchannel heat sink (MCHS) designs for cooling channels in a lithium-ion battery including various geometric modifications. Comparative analysis was performed to determine which design is the best in terms of the heat transfer, the pressure drop, the overall performance and the temperature distribution on the baseline wall. It was observed that local modifications in channels can ensure suitable fluid mixing between core flow and near wall regions; therefore this situation enhances heat transfer performance considerably compared to MCHS with no cavity and rib (MC-NCR). However, the vortices obviously occurred in cavities. Although this phenomenon was helpful for the symmetrical cavity and rib (MC-SCR) in terms of heat transfer enhancement, it was opposite for the asymmetrical cavity and rib (MC-ACR) due to intensive recirculation zones. In addition, the large vortex bubbles especially seen after the last cavity or rib cause pick temperatures because this trapped flow could not be surpassed and carried. Results indicate that as the MC-SCR shows the best thermal performance owing to dominant jetting and throttling effect and convenient longitudinal and transverse vortices, asymmetrical cavity (MC-AC) is the best uniform temperature distribution on baseline wall.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [114M774]
dc.description.sponsorshipThis work is partially supported by Scientific and Technological Research Council of Turkey (TUBITAK), Grant No: 114M774.
dc.identifier.doi10.1016/j.ijthermalsci.2018.08.030
dc.identifier.endpage600en_US
dc.identifier.issn1290-0729
dc.identifier.issn1778-4166
dc.identifier.scopusqualityQ1
dc.identifier.startpage589en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijthermalsci.2018.08.030
dc.identifier.urihttps://hdl.handle.net/20.500.12868/451
dc.identifier.volume135en_US
dc.identifier.wosWOS:000466262700047
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor0-belirlenecek
dc.language.isoen
dc.publisherElsevier France-Editions Scientifiques Medicales Elsevier
dc.relation.ispartofInternational Journal of Thermal Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectMicrochannel heat sink
dc.subjectHeat transfer enhancement
dc.subjectCavity and rib
dc.subjectTemperature distribution on baseline
dc.subjectThermal management of lithium-ion batteries
dc.titleNumerical investigation of the effects of geometric structure of microchannel heat sink on flow characteristics and heat transfer performance
dc.typeArticle

Dosyalar