热管PCM热控装置设计及性能研究

Design and performance study on heat pipe/PCM composite thermal control device

中文关键词: 相控阵天线  热管  相变材料  实验研究  设计改进

英文关键词: phased array antenna  heat pipe  PCM  experimental study  design improvement

中文摘要:

      针对某弹载相控阵天线的热设计难题，提出一种全新的由热管与相变材料联合进行热管理的方案，并设计了热管PCM热控装置。建立了采用该型热控装置的相控阵天线数学模型，对其热控过程进行了数值模拟，随后对热控装置的性能进行了试验测试，测得热源安装面最高温度为124.5℃。将测试结果与模拟结果进行对比，结果相吻合，两者最大偏差不超过15%，热管PCM热控装置可以解决天线的热设计难题。最后对该热控装置进行了改进，改进后试验结果表明：储热器内PCM温度梯度有效降低，热源安装面最高温度降低了6.7℃。研究表明：作为弹载热控领域的新方向，热管PCM联合热控的方案合理可行，可应用于实际工程问题。

英文摘要:

      A fully new thermal control scheme composed of heat pipe and PCM was put forward which aimed at phased array antenna’s thermal design problem, then a heat pipe/PCM composite thermal control device was designed. The numerical study has been done by building the mathematic model of the antenna which used the device designed, then the antenna was experimental tested and the highest temperature on heat source"s mounting surface is 124.5℃. Besides, the comparison of numerical and experimental study shows that the numerical results agree well with the experimental results, the deviation between them is limited to 15%, and the heat pipe/PCM device can solve the problem of the antenna’s thermal design. Finally, the device was improved and the experimental test show that the temperature gradient in PCM is effectively decreased, the highest temperature on source"s mounting surface is down by 10℃. This article"s research shows that the heat pipe/PCM thermal control scheme is reasonable and feasible; the device designed can be applied to practical engineering.