Energy efficiency of a LED lighting system using a Peltier module thermal converter

Ahlem Ben Halima (1) , Zouhour Araoud (2) , Laurent Canale (3) , Kamel Charrada (2) , Georges Zissis (3)

1 ENIM - École Nationale d’Ingénieurs de Monastir
2 EMIR - Unité d’Étude des Milieux Ionisés et Réactifs [Monastir]
3 LAPLACE-LM - Lumière et Matière

With LED lighting systems, 70% of the energy consumed is lost in thermal form. It would be possible to increase the efficiency of the system by converting this wasted thermal energy into light. Some proposals using Peltier modules have been made. This article is interested in the limits of these solutions by evaluating the drop in the luminous efficiency of the LED system induced by the thermal effects generated by the addition of the Peltier module compared to the potential gain in terms of electrical power produced.

Mots clés: High power LED; Peltier module; Thermal behavior; Energy efficiency

Domaines: Optique / photonique; Electronique

Ahlem Ben Halima, Zouhour Araoud, Laurent Canale, Kamel Charrada, Georges Zissis. Energy efficiency of a LED lighting system using a Peltier module thermal converter. Case Studies in Thermal Engineering, 2022, 34, pp.101989. ⟨10.1016/j.csite.2022.101989⟩. ⟨hal-03635536⟩