| LED 翅片散热器传热性能研究 |
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| 引用本文： | 聂宇宏,梁融,姚寿广,聂德云. LED 翅片散热器传热性能研究[J]. 江苏科技大学学报(社会科学版), 2013, 0(6): 561-564 |
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| 作者姓名： | 聂宇宏 梁融 姚寿广 聂德云 |
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| 作者单位： | 江苏科技大学能源与动力工程学院,江苏镇江212003 |
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| 基金项目： | 基金项目：江苏省普通高校研究生科研创新计划基金资助项目（CXLX13_714） |
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| 摘 要： | 通过实验和数值模拟的方法，研究了不同功率下家用LED灯翅片散热器内的温度分布、表面传热系数等换热性能。结果表明：随散热器温度上升，翅片间空气速度增加，速度增大到一定值时，空气流态从层流向湍流过渡，使得基板的温度先升高，在湍流出现时散热性能增强，基板的温度随之下降，随后趋于定值；随功率的增加，平均表面传热系数略有增加，但影响不大。
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| 关 键 词： | 翅片散热器 大功率发光二极管 传热性能 |
Research on heat dissipation performance of LED finned radiator |
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| Nie Yuhong,Liang Rong,Yao Shouguang,Nie Deyun. Research on heat dissipation performance of LED finned radiator[J]. Journal of Jiangsu University of Science and Technology(Natural Science Edition), 2013, 0(6): 561-564 |
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| Authors: | Nie Yuhong Liang Rong Yao Shouguang Nie Deyun |
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| Affiliation: | ( School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang Jiangsu 212003, China) |
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| Abstract: | An experimental and numerical study on heat dispersion properties of a domestic LED of different pow -er was conducted .The research shows that , with the growth of temperature , the speed of the air increases .When it increases to a certain value , the transition of the air flow pattern from laminar to turbulent occurs and the tem-perature of the substrate increases .When turbulent occurs , the temperature decreases and then keeps a fixed value.With the growth of the power , the average surface heat transfer coefficient increases only slightly . |
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| Keywords: | finned radiator LED heat dissipation performance |
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