环路热管地面实验平台的热设计

文章旨在建立环路热管的地面实验平台,模拟环路热管在太空轨道运行的热环境。首先建立了地面实验舱的物理模型,对其如何实现在地面模拟太空中该环路热管的热环境进行了热分析计算,其次确定了满足环路热管轨道运行最冷工况和最热工况下的实验舱的壁面温度,最后对实现该轨道环境所需要的壁面绝热材料、制冷剂、制冷设备进行了选择,初步完成了实验平台的热设计。计算结果表明,在同时考虑舱内对流和辐射换热的条件下,要实现空间热边界条件,实验舱内舱的壁温要保证在-62.1~-10.9℃之间变化。

Thermal Chamber Design for Loop Heat Pipe Ground Experiment

A thermal analysis of loop heat pipe(LHP) ground experiment chamber was carried out by building a physical model under the conditions of natural heat convection and heat radiation.The computation purpose is to achieve the thermal boundary conditions of the LHP space orbital positions in the ground to further secure LHP ground experiment in the coldest and the hottest cases.The general thermal design was made by determining the thermal chamber temperature,insulation,and refrigerant system.Analysis results show that inner chamber wall temperature should vary in the range of-62.1℃ to-10.9℃ in order to realize the LHP space thermal conditions on ground experiment.