Abstract
In this paper, simulation study was performed to analyze the temperature change according to the shape and power factor of LED lamp and suggest a solution for LED cooling. The rated power from LED was 10 W. It was assumed that the power factor was 0.3, 0.5, 0.7, 0.9, respectively. A basic-type LED lamp with no shape change was compared with fin-body type LEDs in terms of heat releasing performance. When the number of fins was increased to 20, the temperature on LED was dropped to 26.72% in average for power factors. However, the temperature was observed to decrease approximately 4% when the number of fins became double. This is because the distance between the fins decreases as the number of fins increases in the identical space. The adverse effect could be avoided by optimization of the number of fins, and enhanced heat transfer is beneficial for increasing LED lifespan.
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