【作者】 徐红艳； 董德平； 王维扬；

【Author】 Xu Hongyan Dong Deping Wang Weiyang Shanghai Institute of Technical Physics 200083

【机构】 上海技术物理研究所；

【摘要】 本文研究了空间用辐射制冷器内部级间绝热的优化问题。一级壳体向二级的漏热主要有辐射热和支撑传导热,通过在支撑上安装隔热屏,辐射漏热可以大大减少, 虽然传导漏热增加,但级间总漏热减少。在一级壳体和二级之间安装一层隔热屏,漏热量可减少50％,安装两层隔热屏,漏热量在一层的基础上减少不大,受到隔热屏表面辐射率的影响较大。隔热屏的安装位置不同,隔热效果也不同。本文从隔热屏的安装数量和位置两方面进行优化,得到了漏热量最小的设计方案。更多还原

【Abstract】 The paper is about the optimizing method of heat transfer control in radiant cooler. The heat leak between second patch and first stage is radiation heat and conductive heat by supperting pole. There is one thermal shield between second and first stage, the heat leak would reduce to fifty percent of that without thermal shield. There are two thermal shields between second and first stage, the heat leak would reduce seven percent of that with one heat shield. The ability of thermal insulation is difference with different position of heat shield. The paper optimized the thermal shield installation in position and numbers.更多还原