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Proceedings Paper

Understanding heat transfer mechanisms in recessed LED luminaires
Author(s): Tianming Dong; Nadarajah Narendran
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Paper 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.

Paper Details

Date Published: 18 August 2009
PDF: 10 pages
Proc. SPIE 7422, Ninth International Conference on Solid State Lighting, 74220V (18 August 2009); doi: 10.1117/12.829902
Show Author Affiliations
Tianming Dong, Rensselaer Polytechnic Institute (United States)
Nadarajah Narendran, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 7422:
Ninth International Conference on Solid State Lighting
Ian T. Ferguson; Christoph Hoelen; Jianzhong Jiao; Tsunemasa Taguchi, Editor(s)

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