ENERGY, ENTROPY, AND EXERGY ANALYSES OF SUDDEN EXPANSION TUBE WITH CONVEX SURFACE USING FERROFLUID

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dc.contributor.authorGürsoy, E.
dc.contributor.authorGürdal, M.
dc.contributor.authorGedik, E.
dc.contributor.authorArslan, K.
dc.date.accessioned2024-09-29T16:22:39Z
dc.date.available2024-09-29T16:22:39Z
dc.date.issued2024
dc.departmentKarabük Üniversitesien_US
dc.description9th International Symposium on Advances in Computational Heat Transfer, CHT 2024 -- 26 May 2024 through 30 May 2024 -- Istanbul -- 317889en_US
dc.description.abstractEnergy, entropy, and exergy analyses have been examined in sudden expansion tube (SET), which used in many thermal applications such as heat exchangers, micro-scale industry application, with both smooth (ST) and convex fin (CFT) surfaces. For the purpose of enhancing the thermal and hydraulic efficiency a ternary approach in which SET, and nanofluid, and convex fin have been employed together. Numerical parametric analyses have been carried out under steady-state, fully developed flow, and constant heat flux conditions with laminar, transitional and turbulent flow regimes (500?Re?10000) using Finite Volume Method (FVM). Two different working fluids as water and ferrofluid (Fe3O4/water) with ?=2.0% volume fraction have used. According to numerical results, the highest increment in the average Nusselt number (Nu) was caused by ferrofluid oc-curred in the laminar flow regime, approximately 7.0%, and its effect on the Darcy friction factor (f) was approximately 4.0%. On the other hand, the average Nu increased nearly twofold under the effect of convex fins at the transitional flow regime. Convex fins severely affected the f, causing an in-crement of nearly 260% in the turbulent flow regime. In the irreversibility analysis, convex fins performed the lowest dimensionless total entropy generation reducing up to 46.0% and increased the second-law efficiency up to 14.0% at Re=2000. Furthermore, the results of first-law efficiency, exergy outlet, exergy loss, and pumping power were investigated in detail and entropy generation results were supported with contours. © 2024, Begell House Inc. All rights reserved.en_US
dc.identifier.endpage268en_US
dc.identifier.issn2578-5486
dc.identifier.scopus2-s2.0-85204084313en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage265en_US
dc.identifier.urihttps://hdl.handle.net/20.500.14619/10180
dc.identifier.volume2024en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherBegell House Inc.en_US
dc.relation.ispartofInternational Symposium on Advances in Computational Heat Transferen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectConvex finsen_US
dc.subjectEnergy analysisen_US
dc.subjectEntropy analysisen_US
dc.subjectExergy analysisen_US
dc.subjectPerformance evaluation criterionen_US
dc.subjectQuadruple flow regimeen_US
dc.subjectSudden expansion tubeen_US
dc.titleENERGY, ENTROPY, AND EXERGY ANALYSES OF SUDDEN EXPANSION TUBE WITH CONVEX SURFACE USING FERROFLUIDen_US
dc.typeConference Objecten_US

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