A three-dimensional thermal management study for cooling a square Light Edding Diode

Mohamed Bechir Ben Hamida; Mohammed A. Almeshaal; Khalil Hajlaoui; Yahia Ali Rothan

Case Studies in Thermal Engineering (Oct 2021)

A three-dimensional thermal management study for cooling a square Light Edding Diode

Mohamed Bechir Ben Hamida,
Mohammed A. Almeshaal,
Khalil Hajlaoui,
Yahia Ali Rothan

Affiliations

Mohamed Bechir Ben Hamida: College of Engineering, Department of Chemical Engineering, University of Ha'il, Ha'il City, 81441, Saudi Arabia; Laboratory of Ionized Backgrounds and Reagents Studies (LEMIR), Preparatory Institute for Engineering Studies of Monastir (IPEIM), University of Monastir, Monastir City, 5000, Tunisia; Higher School of Sciences and Technology of Hammam Sousse (ESSTHS), Department of Physics, University of Sousse, Tunisia; Corresponding author. College of Engineering, Department of Chemical Engineering, University of Ha'il, Ha'il City, 81441, Saudi Arabia.
Mohammed A. Almeshaal: Department of Mechanical Engineering, College of Engineering, Imam Mohammad Ibn Saud Islamic University, Riyadh, 11432, Saudi Arabia
Khalil Hajlaoui: Department of Mechanical Engineering, College of Engineering, Imam Mohammad Ibn Saud Islamic University, Riyadh, 11432, Saudi Arabia
Yahia Ali Rothan: Faculty of Engineering, Mechanical Engineering Department, Jazan University, Jazan 82822, Saudi Arabia

Journal volume & issue: Vol. 27
p. 101223

Abstract

Read online

This paper is intended to ensure adequate thermal management to extract and dissipate the heat emitted by a square Light Emitting Diode (LED) and to guarantee efficient and safe operation.Towards this aim, we developed a three-dimensional, time-dependent code that uses Comsol Multiphysics to solve the equation systems for mass, momentum, and energy. After the validation of this model, it is used to find an inexpensive solution to decrease the junction temperature of the square LED lamp.The drilling of the heat sink in square or circular form is the subject of this paper. For a precise study, the calculation of the convection heat transfer coefficient was calculated carefully according to all the necessary parameters. It is found that the junction temperature of the square LED lamp decreases by drilling the heat sink with two square or cylindrical shapes at different input powers. In addition, the role of the convection heat transfer coefficient is very important with the increase of internal exchange surface for good heat dissipation to the outside and cooling of the lamp.

Published in Case Studies in Thermal Engineering

ISSN: 2214-157X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: http://www.journals.elsevier.com/case-studies-in-thermal-engineering/

About the journal

Abstract

Keywords