Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/12133
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dc.contributor.authorDemirkıran, İsmail Gürkanen_US
dc.contributor.authorRocha, Luiz Alberto Oliveiraben_US
dc.contributor.authorÇetkin, Erdalen_US
dc.date.accessioned2022-07-05T13:21:43Z-
dc.date.available2022-07-05T13:21:43Z-
dc.date.issued2022-06-
dc.identifier.urihttps://doi.org/10.1016/j.ijheatmasstransfer.2022.122726-
dc.identifier.urihttps://hdl.handle.net/11147/12133-
dc.description.abstractMobilized thermal energy storage units have a vital role in reducing energy consumption in buildings by enabling industrial waste heat to be used in buildings. High conductive fins can enhance the heat transfer performance of mobilized thermal energy storage tanks which suffer significantly from the low thermal conductivity of phase change materials. On the other hand, investment costs of the mobilized thermal energy storage tanks need to be decreased to compete with fossil fuel-driven systems in buildings. The present study numerically investigates the effect of innovative fin structures on the melting performance for fixed fin material volume to disable cost increase. Two-dimensional models with phase change were simulated for shell-and-tube heat exchangers. The shell geometry was designed sufficiently large to observe the melting growth of phase change material independent from shell walls within the given charging time. Straight and Branched type fin structures with the fin numbers of Nfin=2, 4, and 6 were simulated to uncover the effect of shape and length scale of fins on natural convection-driven melting. It was found that Straight fin type is more suited than Branched fins as they do not show significant melting enhancement with increased complexity and cost. The fin structures in all cases performed better when located at the top of the heat transfer fluid tube, even though the literature considers that top-located fins inhibit natural convection circulations. Varying the number of fins from (2-fin) to (4-fin) causes 15.8% increase in melting ratio, but further increase in the fin number (6-fin) reduces melting ratio below the (4-fin) case. Within (4-fin) structures located at the top, using distinct fin lengths yields melting ratio to increase 28.1%. Overall, the results show that heat transfer could be improved by varying the fin structure without increasing total fin volume and cost. The melting region growth shape with optimized fin structure forms the basis for the multitube arrangement of mobilized thermal energy storage units to enhance heat transfer performance with low cost.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofInternational Journal of Heat and Mass Transferen_US
dc.rightsinfo:eu-repo/semantics/embargoedAccessen_US
dc.subjectBranched finen_US
dc.subjectLatent heat thermal energy storageen_US
dc.subjectNatural convectionen_US
dc.titleEmergence of asymmetric straight and branched fins in horizontally oriented latent heat thermal energy storage unitsen_US
dc.typeArticleen_US
dc.authorid0000-0003-3686-0208en_US
dc.institutionauthorDemirkıran, İsmail Gürkanen_US
dc.institutionauthorÇetkin, Erdalen_US
dc.departmentİzmir Institute of Technology. Mechanical Engineeringen_US
dc.identifier.wosWOS:000792136600001en_US
dc.identifier.scopus2-s2.0-85125777922en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1016/j.ijheatmasstransfer.2022.122726-
dc.contributor.affiliationIzmir Institute of Technologyen_US
dc.contributor.affiliationUniversidade Vale do Rio dos Sinosen_US
dc.contributor.affiliationIzmir Institute of Technologyen_US
dc.relation.issn0017-9310en_US
dc.description.volume189en_US
dc.identifier.scopusqualityQ1-
dc.identifier.wosqualityttpTop10%en_US
item.fulltextWith Fulltext-
item.openairetypeArticle-
item.cerifentitytypePublications-
item.grantfulltextembargo_20250701-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
crisitem.author.dept03.10. Department of Mechanical Engineering-
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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