Measuring Thermal Conductivity of Liquids by Transient Method

Wang Congyu; Guo Cangsheng; Yang Menlin; Ma Lu and Lu XinzhongThermochemical Laboratory; Northwest University

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Measuring Thermal Conductivity of Liquids by Transient Method

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- Measuring Thermal Conductivity of Liquids by Transient Method
- CIESC Journal Issue 3, (1984)
- 作者机构：
  
  西北大学热化学研究室,西北大学热化学研究室,西北大学热化学研究室,西北大学热化学研究室,西北大学热化学研究室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 1984，
  
  Published：25 September 1984
- 稿件说明：
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Wang Congyu, Guo Cangsheng, Yang Menlin, et al. Measuring Thermal Conductivity of Liquids by Transient Method[J]. CIESC Journal, 1984, (3).
DOI：

Wang Congyu, Guo Cangsheng, Yang Menlin, et al. Measuring Thermal Conductivity of Liquids by Transient Method[J]. CIESC Journal, 1984, (3). DOI：

摘要

以珠状热敏电阻为加热元件

建立了用瞬时法测定液体导热系数的装置

在25℃下用乙二醇等7个标准样品

对该装置进行了标定

平均偏差为2%.为了核实装置和所得关系式的可靠性

又测定了13个已知导热系数的样品

多数偏差在2%以内

最大偏差为5%.单次测量的精度为0.2%.本文叙述了这一方法的原理

并对实验结果进行了讨论.

Abstract

Using a small bead-in-glass thermistor probe as a heating element

an apparatus was developed for measuring thermal conductivity of liquids by the transient method. The apparatus was calibrated by using seven standard substances at 25℃

with an average deviation of measurements less than 2%. To check the reliability of this apparatus and the correlation proposed

the thermal conductivities of thirteen known liquids were determined. The experimental results showed that all deviations were within 2% except one which reached 5%. The precision of the apparatus is 0.2%. This paper expounds the principle of the proposed method and discusses the experimental results.

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