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小角度下自湿润流体重力热管传热特性

, PP. 1282-1285

Keywords: 重力热管,小角度,自湿润流体,热阻,传热性能

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Abstract:

本文实验研究了工质分别为水和自湿润流体(质量分数5%正丁醇水溶液)的两种重力热管在微小倾斜角度下的传热特性,对比两种热管的传热性能以探究自湿润流体在小角度下对热管性能的影响。实验所采用的各倾角分别为0°,1°,3°,5°,7°和10°。实验结果表明:在倾角为0°$时,自湿润流体重力热管相比水重力热管热阻更小、传热极限更大,因此具有更好的传热性能;在其他小的倾角下,自湿润流体同样显著提高了重力热管的传热极限,但也使热阻有所增大。

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