Research into the junction temperature and power of new led modules generation in dependence on variable parameters

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dc.authorid0000-0001-8647-4861en_US
dc.contributor.authorSökmen, Kemal Fürkan
dc.contributor.authorKaratas, O.B.
dc.date.accessioned2021-03-20T20:27:00Z
dc.date.available2021-03-20T20:27:00Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractIn this research, the change in the junction temperature and luminous flux of a new generation LED module depending on variables such as radiation, lens piece, ambient temperatures, currents, and quantity of elements had been studied. Commercial software FloEFD2019 was used in the finite volume analysis made during the study. The analyses were verified by experiments. On basis of the analysis, a solution was obtained that does not depend on the number of elements. The force of gravity was taken into account. While the ambient temperatures were taken as Ta = 23 °C and 40 °C, and the radiation value as 1009 W/m2, currents as 140 mA, 160 mA, 180 mA, 200 mA, 220 mA and 240 mA, meanwhile, samples numbers on PCB were taken as 101 and 202. In order to determine the effect of the lens piece located on the LED module, the analysis was repeated with and without using the lens. As a result of the study, it was found that the increase in ambient temperature and radiation has an adverse effect on the temperature Tj and luminous flux. It has been observed that changing samples number has a negligible effect on luminous flux and temperature Tj. It was found that the use of radiation and lenses are the most important factors affecting the luminous flux of the module. © 2020, LLC Editorial of Journal ""Light Technik"". All rights reserved.en_US
dc.identifier.doi10.33383/2019-101en_US
dc.identifier.endpage115en_US
dc.identifier.issn0236-2945
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85095863995en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage106en_US
dc.identifier.urihttp://doi.org/10.33383/2019-101
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1390
dc.identifier.volume28en_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSökmen, Kemal Fürkan
dc.language.isoenen_US
dc.publisherLLC Editorial of Journal ""Light Technik""en_US
dc.relation.ispartofLight and Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectComputational fluid dynamics (CFD)en_US
dc.subjectJunction temperatureen_US
dc.subjectLaminar natural convectionen_US
dc.subjectLED automotive lampen_US
dc.subjectMonte Carlo method of radiationen_US
dc.titleResearch into the junction temperature and power of new led modules generation in dependence on variable parametersen_US
dc.typeArticleen_US

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