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dc.contributor.authorÖksüz, Enes Abdülhakim
dc.contributor.authorSaygın, Alper
dc.contributor.authorBaşol, Altuğ Melik
dc.contributor.authorBudaklı, M.
dc.contributor.authorArık, Mehmet
dc.description.abstractFrost formation on evaporators negatively affects the cooling performance of refrigerators. It increases the thermal resistance between the refrigerant and air leading to a reduction in the system cooling capacity. In this study, the effect of frost accumulation over a bare and finned surface on the convective thermal resistances has been experimentally investigated under impinging flow conditions. The surfaces are vertically positioned in a horizontal wind tunnel. The convective resistances have been measured with an in-house developed heat flux measurement system. Finally, the effectiveness of the finned surface was derived from the measurements for dry, condensing flow and as well as for frosting conditions. Under frosting conditions, the effectiveness of the finned surface is measured as 1.4 that is by a factor of 2X lower compared to the effectiveness of the same finned surface operating under dry conditions. It has been observed that the frost accumulation initially takes place at the tip of the fins and leads to a 45% drop in the heat transfer rate when the fin tips are completely covered with frost. Further frost accumulation on the fin base does not result in an additional drop in the heat transfer rate. In this regard, the study emphasizes the importance of the fin tip design for the heat sinks operating under frosting conditions.en_US
dc.relation.ispartofASME 2020 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems
dc.titleAn experimental investigation into frost accumulation over vertical finned and unfinned surfaces during impinging air flowen_US
dc.typeConference paperen_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0002-7289-7246 & YÖK ID 249290) Başol, Altuğ
dc.contributor.authorID(ORCID 0000-0002-9505-281X & YÖK ID 124782) Arık, Mehmet
dc.contributor.ozuauthorBaşol, Altuğ Melik
dc.contributor.ozuauthorArık, Mehmet
dc.subject.keywordsAuthor keywordsen_US
dc.subject.keywordsElectronics coolingen_US
dc.subject.keywordsForced convectionen_US
dc.subject.keywordsHeat fluxen_US
dc.subject.keywordsThermal resistanceen_US
dc.contributor.ozugradstudentÖksüz, Enes Abdülhakim
dc.contributor.ozugradstudentSaygın, Alper
dc.relation.publicationcategoryConference Paper - International - Institutional Academic Staff and Graduate Student

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