Thermal Convection of a High-Power LED Heat Sink - Analysis and Processing of Images Obtained by Schlieren Optics
LED lighting occupies all sectors including high power ones. The most efficient systems today reach nearly 30% and it is necessary to evacuate the 70% of thermal losses to protect the LEDs and allow them to have a long life. Among the alternatives to natural convection cooling, two main forced convection modes are presented: by fan or by ionic wind. This work presents a comparative study of the thermal performances of three cooling methods applied to an LED heat sink: natural convection, ionic wind cooling and forced convection using a fan. Experiments were conducted at different LED power levels, using Schlieren imaging to visualize thermal flows and MATLAB for thermal image analysis. The results show that while the fan offers the best thermal performances, the ionic wind stands out for its quiet operation and compact design. This study highlights the importance of selecting the appropriate cooling method based on the specific requirements of each application.
Authors
- Pascal Dupuis (ORCID: https://orcid.org/0000-0002-2966-9424)
- Laurent Canale (ORCID: https://orcid.org/0000-0003-1097-889X)
- Zouhour Araoud (ORCID: https://orcid.org/0000-0001-9268-8663)
- Saifeddine Gharsellaoui
Institutions
- Centre National de la Recherche Scientifique (FR)
- University of Monastir (TN)
- Université Fédérale de Toulouse Midi-Pyrénées (FR)
- Institut National Polytechnique de Toulouse (FR)
- Centre de Recherche sur les Ions, les Matériaux et la Photonique (FR)
- Laboratoire Plasma et Conversion d'Energie (FR)
- Grand Accélérateur National d'Ions Lourds (FR)
- Ecole Nationale d'Ingénieurs de Monastir
Publication Details
- Published
- 2024-11-12
- DOI
- https://doi.org/10.1109/ls2463127.2024.10880946
- Primary Topic
- Engineering Applied Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00