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一种空间极低温吸附制冷机的设计与实现
引用本文:罗宝军,王兆利,闫涛,梁惊涛.一种空间极低温吸附制冷机的设计与实现[J].宇航学报,2015,36(7):855-860.
作者姓名:罗宝军  王兆利  闫涛  梁惊涛
作者单位:中国科学院理化技术研究所,北京 100190
基金项目:国家自然科学基金(51206176)
摘    要:针对极低温吸附制冷技术的热沉制冷系统,系统分析了极低温吸附制冷的特性,研究了热沉温度对极低温吸附制冷性能的影响,研制了一台极低温吸附制冷机样机,工质气体为氦4,在1.5W@4.2K G-M制冷机基础上实现了50μW@0.8K的制冷性能,验证了基于机械制冷系统的更高热沉温度技术的可行性,这一成果为深空探测和载人空间站相关研究提供了技术支撑。

关 键 词:极低温  吸附制冷  热沉温度  氦4  深空探测  
收稿时间:2014-07-30

Design and Implementation of a Space Sub Kelvin Sorption Cooler
LUO Bao jun,WANG Zhao li,YAN Tao,LIANG Jing tao.Design and Implementation of a Space Sub Kelvin Sorption Cooler[J].Journal of Astronautics,2015,36(7):855-860.
Authors:LUO Bao jun  WANG Zhao li  YAN Tao  LIANG Jing tao
Institution:Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
Abstract:In order to match a suitable heat sink cooling system, characteristics of sub-Kelvin sorption cooling are analyzed. The effect of heat sink temperature on the performance of sorption cooler is then studied. A prototype of sorption cooler is designed and investigated. Based on a pre-cooler of 1.5W@4.2K G-M refrigerator, performance of 50μW@0.8K is obtained for the sorption cooler with 4He as the working fluid. The experimental results validate the technical feasibility of a higher heat sink temperature obtained by proposed mechanical cooling system, and the research results will also provide technical support of sub-Kelvin cooling for China′s deep space exploration and manned space station program.
Keywords:Sub-Kelvin  Sorption cooling  Heat sink temperature  Helium 4  Deep space exploration  
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