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논문 기본 정보

자료유형
학술저널
저자정보
Ho-Dong Yang (조선이공대학교) Jae-Young Yoo (현대자동차) Seul-Hyun Park (조선대학교)
저널정보
한국기계가공학회 한국기계가공학회지 한국기계가공학회지 제17권 제6호
발행연도
2018.12
수록면
117 - 123 (7page)

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초록· 키워드

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Automotive headlamps have been continuously developed as one of the most important devices for securing the driver’s view, and the LED lamps are getting popular in recent years. However, in case of the LED lamps, because the heat generated by the LED lamps are too high, it shorten the product life and lower the LED efficiency. Therefore, this study was investigated the cooling characteristics of the LED lamp heat sink for automobile by forced convection for LED heat generation control. In order to analyze the cooling characteristics of the heat sink, the temperature distribution results were investigated through the experiment and computational analysis under the increase of the air flow velocity, and the convective heat transfer coefficient was obtained. Also, convective heat transfer coefficient was calculated by the theoretical formula under the same condition and compared with experimental and computational results. From the result of this study, as the air flow velocity around the heat sink fins increased, the convective heat transfer coefficient significantly increased, confirming the improvement in the cooling effect.

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ABSTRACT
1. Introduction
2. Experimental and Computational Analysis Methods
3. Results and Discussion
4. Conclusion
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