Understanding heat transfer mechanisms in recessed LED luminaires

Tianming Dong; Nadarajah Narendran

doi:10.1117/12.829902

18 August 2009 Understanding heat transfer mechanisms in recessed LED luminaires

Tianming Dong, Nadarajah Narendran

Proceedings Volume 7422, Ninth International Conference on Solid State Lighting; 74220V (2009) https://doi.org/10.1117/12.829902
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Reduced maintenance cost due to the long life of light-emitting diodes (LEDs) has attracted the lighting community to this rapidly evolving lighting technology. A high LED junction temperature negatively affects the performance of LEDs. To realize the long-life potential of LEDs, proper thermal management is necessary. This paper describes a numerical and experimental investigation of thermal solutions for an LED recessed downlight under passive cooling. Different heat transfer mechanisms and their contributions for keeping the LED junction at lower temperatures also were analyzed.

Citation Download Citation

Tianming Dong and Nadarajah Narendran "Understanding heat transfer mechanisms in recessed LED luminaires", Proc. SPIE 7422, Ninth International Conference on Solid State Lighting, 74220V (18 August 2009); https://doi.org/10.1117/12.829902

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