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Large LED (light-emitting diodes) clusters are currently designed to replace the lamps commonly used in parks, roadways, tunnels and street lighting. However, the success of these designs is heavily dependent on the performance of the thermal management. Thermal performance affects light extraction, reliability and lifetime of LED lamp. This paper proposes thermal management solutions to improve the design of LED luminaires. These solutions include natural convection and forced air convection into a closed cooling loop. The LED driver influence on luminaire heating is also evaluated in this paper. Simulations employing Finite-Volume Method (FVM) and Computational Fluid Dynamics (CFD) have been done to analyze the system’s performance and to propose improvements in the airflow design. Comparisons of the experimental and simulation results are presented for validation purposes.1

Thermal Management Of Led Luminaires Based On Computational Fluid Dynamic