Feasibility analysis on radiant transient heat flux meter calibration system
A heat flux meter calibration system composed of a vacuum cryogenic container,a blackbody furnace and a set of T-type thermocouples measurement system is introduced in this paper.Primary purpose of this system is to calibrate specific heat flux meters applied in spacecraft thermal ground tests within which the heat flux range is from 60w/m2 to 1400w/m2 and vacuum is necessary.To simulate space condition,the vacuum container is designed according to the space simulator working standard in thermal ground tests.The required temperature measurement uncertainty in the heat flux meter calibration system is less than 0.1K and thermocouple calibration is completed in a more precise thermostatic bath of uncertainty less than 3mK.Thermal character of the vacuum container and the blackbody furnace are verified by NX I-Deas simulations.Besides,Heat flux distribution non-uniformity of the blackbody furnace aperture is 3.5% and obtained by ray trace method.Consequently,heat flux meter calibration uncertainty less than 5% is proved to be realizable in this system.
heat flux meter calibration uncertainty temperature distribution heat flux non-uniformity
ChunChen Sheng Peng Hu XiaoFang Cheng
Department of Thermal Science and Energy Engineering,University of Science and Technology of China,230027Hefei,China
国际会议
2016 Internatioanl Conference on Engineering and Technology Innovations(ICETI-2016))2016年工程与技术创新国际会议
武汉
英文
146-154
2016-03-25（万方平台首次上网日期，不代表论文的发表时间）