Investigation on the Thermal Management of a High Power LED Module

Abstract

High-power LED light sources operate mainly in the UV regime. Although the emitted light power is significant, a large amount of heat is generated as a side effect. The increasing temperature degrades the state of the electronic elements of the LED module and decreases the power of the emitted light. This paper discusses the results of the experimental and numerical modeling of the thermal processes inside a module containing a single LED element. Thermal characteristics were investigated for the case with and without forced cooling. Cooling was realized by using air flow induced by a fan. Parameters were identified that govern the main characteristics of the phenomenon.