变密度多层绝热性能测试装置及实验验证  

An experimental setup and verification for performance testing of variable density multilayer insulation

作　　者：张安[1] 闫春杰[1] 霍英杰[1] 王丽红[1] 冶文莲[1] 

机构地区：[1]兰州空间技术物理研究所,真空低温技术与物理重点实验室,兰州730000

出　　处：《低温与超导》2013年第8期10-13,共4页Cryogenics and Superconductivity

基　　金：真空低温技术与物理国家级重点实验室基金(9140C550604)资助

摘　　要：建立了一套变密度多层绝热性能测试装置,用于研究变密度多层绝热技术的特性规律。实验应用低温量热法原理测试了真空度、层密度及热边界温度对变密度多层绝热性能的影响。实验结果与理论计算分析结果相吻合,验证了理论计算分析的准确性。A liquid nitrogen boil - off rate measurement apparatus was built to investigate the thermal insulation performance of the variable density multilayer. Vacuum preloading, layer density and thermal boundary temperature impacting the characteris- tics were also tested. The results indicated that theoretical analysis is nearly the same as experimental results, which verified the accuracy of the theoretical calculation.

关 键 词：变密度 多层绝热 层密度 热边界温度 

分 类 号：TQ343.41[化学工程—化纤工业]