Experimental investigation of the defrosting process on domestic refrigerator finned tube evaporators

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dc.contributor.authorÖzkan, Derya Burcu
dc.contributor.authorÖzil, Eralp
dc.contributor.authorİnan, Cemil
dc.date.accessioned2020-11-21T15:53:21Z
dc.date.available2020-11-21T15:53:21Z
dc.date.issued2012en_US
dc.departmentİstanbul Ticaret Üniversitesien_US
dc.description.abstractFrost formation is an important problem for household refrigerator and air conditioning equipment manufacturers. When frost accumulates on the evaporator surface, it acts as a thermal insulator and reduces heat flow. Therefore, frost negatively affects evaporator performance. The purpose of this study is to decrease energy consumption and increase the efficiency of the defrosting process. In the first part of the experiment, frost formation on a no-frost refrigerator evaporator at real operating conditions was investigated. The ambient temperature was maintained at a constant 23°C. It was observed that when the evaporation temperature reaches -35°C, the frost formation on the evaporator exhibits a rather dense structure that is unlike the needle-type structure observed at higher temperatures. In the second part of the experiment, the defrosting process was observed with an endoscopic camera, and the initial melting points were investigated. The experiment revealed that although the heater density is higher on the lower rows, the frost on the higher rows of the evaporator melts faster. On the theoretical side, we prepared an analytical model that calculates the melting time of the frost on the fin. The experimental and theoretical results are within 5%. © 2012 Copyright Taylor and Francis Group, LLC.en_US
dc.identifier.doi10.1080/01457632.2012.624867en_US
dc.identifier.endpage557en_US
dc.identifier.issn0145-7632
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-84857337188en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage548en_US
dc.identifier.urihttps://doi.org/10.1080/01457632.2012.624867
dc.identifier.urihttps://hdl.handle.net/11467/3555
dc.identifier.volume33en_US
dc.identifier.wosWOS:000302012200006en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofHeat Transfer Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.titleExperimental investigation of the defrosting process on domestic refrigerator finned tube evaporatorsen_US
dc.typeArticleen_US

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