Tag Archives: 수치해석

Fig. 4 Mesh generation and Region

Cooling Performance of LED Head Lamp with Heat Sink and Cooling Fan

1. Overview: 2. Research Background: The increasing use of LEDs in automotive lighting systems presents a challenge due to heat generation from high-power LEDs, leading to performance degradation and reduced lifespan. Previous research identified factors affecting LED lifespan and analyzed heat transfer characteristics through heat sink design modifications. However, these studies lacked optimal cooling system

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Fig. 5. Schematic of cooling system assembled with different number of heat pipes:(a) is 2 heat pipes, (b) is 3 heat pipes, (c) is 4 heat pipes, and (d) is 6 heat pipes.

A novel automated heat-pipe cooling device for high-power LEDs

1. Overview: 2. Research Background: High-power LEDs are increasingly popular in various applications, offering advantages like long lifespan, high reliability, low energy consumption, fast response time, and color variability. However, their efficiency (15-25% power-to-light conversion) is limited, with over 80% of power dissipated as heat, leading to high junction temperatures. Maintaining junction temperatures below 120°C

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