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[58820] Artykuł: Influence of luminaire aiming on LED sources junction temperatureCzasopismo: 13th Selected Issues of Electrical Engineering and ElectronicsISBN: 978-1-5090-1015-8 Wydawca: IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA Opublikowano: 2016 Autorzy / Redaktorzy / Twórcy
Grupa MNiSW: Materiały z konferencji międzynarodowej (zarejestrowane w Web of Science) Punkty MNiSW: 15 Klasyfikacja Web of Science: Proceedings Paper Pełny tekst DOI Web of Science Keywords: LED sources  junction temperature  radiation systems  natural convection  CFD  |
The correct selection of the radiator and ensuring the optimal cooling of the LEDs is the key element associated with the long life and stability of LEDs parameters. Currently, the most widely used radiation system in luminaries with LEDs is the passive system, where the main flow path of heat is the free convention between the radiator and the environment. In the above radiation system, apart from the geometry and size of the radiator, the junction temperature of the LED of the luminaire can also be affected by the angle of inclination of the luminaire relative to the gravity vector. The article presents the results of simulation studies, related to the designation of the junction temperature of the exemplary luminaire in the LED technology, for a different location of the fixture relative to the gravity vector.