任意傾斜角度下三角形溝槽熱傳分析

A Heat Transfer Analysis of a V-shaped Channel with Inclined Angles

余政賢(Jheng-Sian Yu)

指導教授 ： 許政行

中原大學/工學院/機械工程學系/碩士(2008年)

https://doi.org/10.6840/CYCU.2008.00394

摘要

水平放置的三角溝槽熱管，因內部的每個溝槽傾斜角度各不相同，因此各個溝槽的液-氣介面曲線必不相同。本文藉由液-氣介面的力平衡關係，計算出不同傾斜角度下液-氣介面的曲線變化，代入單一溝槽體積流率方程式，進而得到不同傾斜角度下的溝槽體積流率及無因次液體流動形狀因子。最後再藉由無因次液體流動形狀因子，計算出不同傾斜角度下的溝槽最大熱傳率。
　　本文亦探討熱管液體質量，以及接觸角、溝槽半頂角的影響。結果顯示，傾斜角等於零度時有最佳的熱傳性能。而且當熱管液體質量愈小，或者溝槽半頂角愈小、操作溫度愈低，都會使傾斜角的影響變小。唯有接觸角愈小，傾斜角的影響愈大。

關鍵字

熱管 ； 液體流動形狀因子 ； 傾斜角

並列摘要

With the discrepancy of the inclined angle inside the horizontal V-shaped channel heat pipe, the curve of vapor-liquid interface among every channel must different. By vapor-liquid interface balanced stress, one can calculate the various curvature of vapor-liquid interface in different inclined angles and the volume flow rate. The dimensionless liquid flow shape factor and the maximum heat transport capacity in different inclined angle of the channel are presented.

The influences of liquid mass, contact angle, half angle of channel and operating temperature are studied . The maximum heat transport capacity will be shown when incline angle is 0 degree. However, when the liquid level is lower and half angle is smaller, or the operating temperature is lower, the influences of inclined angle will become weaker. But the contact angle is smaller, the influences then of inclined angle will be stronger.

並列關鍵字

inclined angle ； liquid flow shape factor ； heat pipe

參考文獻

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