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Energies 2017, 10(5), 639; doi:10.3390/en10050639

Design Optimization of a High Power LED Matrix Luminaire

1,2,‡,†,* , 3,‡
and
1,2,‡
1
Experimental & Technological Research and Study Group (NExT), Federal Institute of Goias, Goiania, GO 74055-110, Brazil
2
School of Electrical, Mechanical and Computer Engineering, Federal University of Goias, Goiania, GO 74605-010, Brazil
3
Department of Electrical Engineering and Computer Science, Cleveland State University, Cleveland, OH 44115, USA
This paper is an extended version of our paper published in Selected Papers from 16 IEEE International Conference on Environment and Electrical Engineering (EEEIC Florence Italy 6 June 2016).
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Rodolfo Araneo
Received: 16 February 2017 / Revised: 5 April 2017 / Accepted: 6 April 2017 / Published: 5 May 2017

Abstract

This work presents a methodology for optimizing the layout and geometry of an m × n high power (HP) light emitting diode (LED) luminaire. Two simulators are used to analyze an LED luminaire model. The first simulator uses the finite element method (FEM) to analyze the thermal dissipation, and the second simulator uses the ray tracing method for lighting analysis. The thermal and lighting analysis of the luminaire model is validated with an error of less than 10%. The goal of the optimization process is to find a solution that satisfies both thermal dissipation and light efficiency. The optimization goal is to keep the LED temperature at an acceptable level while still obtaining uniform illumination on a target plane. Even though no optical accessories or active cooling systems are used in the model, the results demonstrate that it is possible to obtain satisfactory results even with a limited number of parameters. The optimization results show that it is possible to design luminaires with 4, 6 and up to 8 HP-LEDs, keeping the LED temperature at about 100 C. However, the best uniformity on a target plane was found by the heuristic algorithm. View Full-Text
Keywords: high power (HP) light emitting diode (LED); LED luminaire; optimization; illuminance distribution; thermal heat dissipation high power (HP) light emitting diode (LED); LED luminaire; optimization; illuminance distribution; thermal heat dissipation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Barbosa, J.L.F.; Simon, D.; Calixto, W.P. Design Optimization of a High Power LED Matrix Luminaire . Energies 2017, 10, 639.

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