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首页> 外文期刊>Journal of Thermal Science and Technology >Heat Transfer Capacity of Lotus-type Porous Copper Heat Sink for Air Cooling
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Heat Transfer Capacity of Lotus-type Porous Copper Heat Sink for Air Cooling

机译：空冷莲花型多孔铜散热器的传热能力

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摘要

Lotus-type porous metal with many straight pores is attractive as a heat sink because larger heat transfer capacity is obtained due to the small diameter of the pores. The heat transfer capacity of the lotus-type porous copper heat sink was calculated using the model with the pores of uniform diameters. However, actual lotus-type porous metals have a distribution of pore diameter. In the present work, we investigated the lotus-type porous copper fin model (non-uniform pore model) by considering size distribution of measured on the actual measurement of the pore diameters on a cross-section of the lotus-type porous copper fin. Prediction of the heat transfer characteristics for the lotus-type porous copper heat sink shows a good agreement with the experimental data. In addition, the predicted heat transfer coefficient of non-uniform pore model also shows a good agreement with the uniform pore models. Thus, it is clarified that the heat transfer characteristic of the lotus-type porous copper heat sink can be predicted by the uniform pore model.
机译：具有许多直孔的莲花型多孔金属作为散热器是有吸引力的，因为由于小孔的直径而获得了更大的传热能力。使用具有均匀直径的孔的模型计算莲花型多孔铜散热器的传热能力。然而，实际的莲花型多孔金属具有孔径分布。在目前的工作中，我们通过考虑在莲花型多孔铜翅片的横截面上的孔径的实际测量中所测量的尺寸分布，研究了莲花型多孔铜翅片模型（非均匀孔模型）。莲花型多孔铜散热器的传热特性预测与实验数据吻合良好。此外，非均匀孔隙模型的预测传热系数也与均匀孔隙模型有很好的一致性。因此，明确了可以通过均匀的孔模型来预测莲花型多孔铜散热器的传热特性。

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