液体低温热导率的测试

THE MEASUREMENT ON THERMAL CONDUCTIVITY OF LIQUID AT LOW TEMPERATURE

摘要: 介绍了非稳态法测试液体在低温下(-100~50℃)的热导率的测试原理、方法,测试了全氟三乙胺的低温热导率。为了提高测试的重复性,采用了相对比较法,并给出了测试装置及测试结果和误差分析。

Abstract: This paper introd uces the transient measuring theory and method for the liquid transient-CFC thermal conductivity at low temperature（-100～50℃）;gives the results of the test,analyese the errors and describes the experimnental equipment.