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Three dimensional numerical simulation and analysis of the airside performance of slotted fin surfaces with radial strips

机译：径向带缝翅片表面空气侧性能的三维数值模拟与分析

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摘要

Purpose - To provide some heat transfer and friction factor results for fin-and-tube heat transfer surfaces which may be used in air conditioning industry. Design/methodology/approach - Numerical simulation approach was adopted to compare the plain plate fin and three types of radial slotted fin surfaces. Findings - It is found that at the same frontal velocity (1.0-3 m/s) the plain plate fin has the lowest heat transfer rate with the smallest pressure drop. The full slotted fin surface has the highest heat transfer rate with the largest pressure drop penalty. The partially slotted fin (where the strips are mainly located in the rear part of the fin) and the back slotted fin are some what in between. Under the identical pumping power constraint, the partially slotted fin surface behaves the best. Research limitations/implications - The results are only valid the two-row fin surface. Practical implications - The results are very useful for the design of two-row tube fin surfaces with high efficiency. Originality/value - This paper provides original information of slotted fin surface with radial strips from the field synergy principle.
机译：目的-为可用于空调行业的翅片管传热表面提供一些传热和摩擦系数结果。设计/方法/方法-采用数值模拟方法比较平板翅片和三种类型的径向开缝翅片表面。发现-发现在相同的正面速度（1.0-3 m / s）下，平板散热片的传热速率最低，而压降最小。全开缝翅片表面具有最高的传热速率和最大的压降损失。部分开槽的翅片（其中条主要位于翅片的后部）和后开槽的翅片介于两者之间。在相同的泵浦功率约束下，部分开槽的鳍片表面表现最佳。研究的局限性/意义-结果仅在两行鳍表面有效。实际意义-该结果对于高效设计两排管翅片表面非常有用。原创性/价值-本文根据场协同原理提供带有径向条的开槽翅片表面的原始信息。

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