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圆管平直翅片散热器翅片导热系数对其传热特性影响

Xiao-ping GAI,Liang-bi WANG,Zhi-min LIN,Ye WANG

Journal of Lanzhou Jiaotong University（2010）

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Abstract
圆管翅片式散热器是空调冷凝器、蒸发器常用的一种散热设备.提高该种散热器的传热性能、降低运行阻力可以减少机械能的消耗,减少排放.采用了完全耦合的数值方法对不同翅片材料下散热器在工况、结构不同时的性能进行了研究.分析了努塞尔数Nu、传热系数K随着翅片导热系数、管间距的变化关系.进一步分析了翅片材料、管间距对翅片表面传热性能的影响.
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Key words
tube bank plain fin heat exchangers,heat transfer performance,numerical analysis method,conductivity of fin material
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