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首页> 外文期刊>Journal of Heat Transfer >Heat Transport Characteristics in a Miniature Flat Heat Pipe With Wire Core Wicks
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Heat Transport Characteristics in a Miniature Flat Heat Pipe With Wire Core Wicks

机译：带有线芯灯芯的微型扁平热管的传热特性

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摘要

A mathematical model predicting the heat transport capability in a miniature flat heat pipe (FHP) with a wired wick structure was developed to analytically determine its maximum heat transport rate including the capillary limit. The effects of gravity on the profile of the thin-film-evaporation region and the distribution of the heat flux along a curved surface were investigated. The heat transfer characteristics of the thin-film evaporation on the curved surface were also analyzed and compared with that on a flat surface. Combining the analysis on the thin-film-condensation heat transfer in the condenser, the model can be used to predict the total temperature drop between the evaporator and condenser in the FHP. In order to verify the model, an experimental investigation was conducted. The theoretical results predicted by the model agree well with the experimental data for the heat transfer process occurring in the FHP with the wired wick structure. Results of the investigation will assist in the optimum design of the curved-surface wicks to enlarge the thin-film-evaporation region and a better understanding of heat transfer mechanisms in heat pipes.
机译：建立了一种数学模型，该模型可预测具有线状灯芯结构的微型扁平热管（FHP）的传热能力，以分析确定其最大的传热速率，包括毛细管极限。研究了重力对薄膜蒸发区域轮廓和热通量沿曲面分布的影响。还分析了曲面上薄膜蒸发的传热特性，并将其与平面上的传热特性进行了比较。结合冷凝器中薄膜冷凝传热的分析，该模型可用于预测FHP中蒸发器和冷凝器之间的总温降。为了验证模型，进行了实验研究。该模型预测的理论结果与带有线状灯芯结构的FHP中发生的传热过程的实验数据非常吻合。研究结果将有助于曲面灯芯的优化设计，以扩大薄膜蒸发区域，并更好地了解热管中的传热机理。

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