期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：11
页码：21664
DOI：10.15680/IJIRSET.2017.0611099
出版社：S&S Publications
摘要：Thermal shields cooled from 120K down to 80K are used to enclosing accelerator cryomodules forreducing thermal load. A precise knowledge about the low temperature emissivity of materials having a decisiveimportance in designing passively cooled components operating at low temperature. This paper describes a numericaltechnique for measuring the emissivity of materials in the temperature range of 80K to 120K. In this paper emissivityestimation of copper and aluminium samples are presented at different temperature and different geometric parametercombinations and the results are confronted with other experimental results. COMSOL Multiphysics software is usedfor analysis.
