Thermal performance analysis of a novel linear LED housing with inner and outer fins

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dc.authoridOzdilli, Ozgur / 0000-0002-9861-4793
dc.authorwosidOzdilli, Ozgur / AAM-5130-2021
dc.contributor.authorŞevik, Seyfi
dc.contributor.authorAbuşka, Mesut
dc.contributor.authorÖzdilli, Özgür
dc.date.accessioned2021-11-01T15:05:04Z
dc.date.available2021-11-01T15:05:04Z
dc.date.issued2020
dc.departmentHitit Üniversitesi Teknik Bilimler Meslek Yüksekokulu Elektrik ve Enerji Bölümü
dc.description.abstractThere is an inverse relationship between the junction temperature of the light-emitting diode (LED) and its lifetime therefore, it is significant to operate it at low junction temperature. In this study, three different natural convection linear housing models were developed to cool mid-powered LED arrays, focusing on basic parameters such as fin structure, surface area, and wall thickness in the design of the models and thermal performance has been tested numerically and experimentally. The performance tests were carried out at five different ambient temperatures, 20, 25, 30, 35, and 40 degrees C. Compared to Model-1 (standard housing without fin) and Model-2 (thin housing with inner fin), the cooling effect of Model-3 (thin housing with inner + outer fin) is remarkably high, and this effect was more evident with the increase in ambient temperature. This impact has been achieved by increasing the surface area of Model-3 by almost 50%, although its mass has decreased more than twice. The maximum junction temperatures of Model-3 were approximately 2 degrees C lower than Model-1 and 5 degrees C lower than Model-2 in all experiments, with the presence of fins and the development of geometry. When the maximum allowable temperature rise is 94.68-101.25 degrees C and the 35 watts dissipated in the package, the average thermal resistances were found to be 1.12-1.38 degrees C/W. It is thought that these new-generation LED-based linear designs can be used to illuminate the work areas and they can replace compact lamp-based luminaires that work with direct and indirect lighting principles.
dc.identifier.doi10.1016/j.icheatmasstransfer.2020.104970
dc.identifier.issn0735-1933
dc.identifier.issn1879-0178
dc.identifier.scopus2-s2.0-85093114107
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.icheatmasstransfer.2020.104970
dc.identifier.urihttps://hdl.handle.net/11491/7085
dc.identifier.volume119en_US
dc.identifier.wosWOS:000599800300062
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorAbuşka, Mesut
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Communications In Heat And Mass Transfer
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectMid-power LEDen_US
dc.subjectLED lighting luminaireen_US
dc.subjectHeatsinken_US
dc.subjectLinear housing designen_US
dc.subjectThermal performance analysisen_US
dc.subjectLED coolingen_US
dc.titleThermal performance analysis of a novel linear LED housing with inner and outer fins
dc.typeArticle

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