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

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.

Automated summary

With LED lighting systems, 70% of the energy is lost as thermal energy. By converting this waste heat into light using Peltier modules, the efficiency of the system can be increased. This article evaluates the limitations of these solutions by examining the decrease in luminous efficiency of the LED system caused by the thermal effects of adding Peltier modules, compared to the potential gain in electrical power production.