Abstract We here report a three-parameter correlation for the temperature T dependent thermal conductivity λ of different kinds of saturated liquids including n-alkanes, refrigerants and others such as argon and nitrogen. The correlation is proven to be more accurate than other known correlations. Compared with the REFPROP data in NIST, the proposed correlation reproduces the corresponding data with the average absolute deviation (AAD) less than 1.20% for all the liquids considered. At the same time, it well holds in a wider temperature range which begins from the triple point temperature and ends at about 0.98 times the critical temperature, at which the thermal conductivity experimentally takes a minimal value for the liquids we study. Engineers and researchers can use the proposed correlation to directly estimate/calculate the thermal conductivity of the liquids considered here with high accuracy. Thermal conductivity related industrial and engineering equipment designs and chemical process designs will benefit from it greatly.

中文翻译：

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饱和液体随温度变化的热导率的三参数相关性

摘要 我们在此报告了不同种类饱和液体（包括正烷烃、制冷剂和其他如氩气和氮气）的温度 T 依赖的热导率 λ 的三参数相关性。相关性被证明比其他已知的相关性更准确。与 NIST 中的 REFPROP 数据相比，所提出的相关性再现了所有考虑的液体的平均绝对偏差 (AAD) 小于 1.20% 的相应数据。同时，它在更宽的温度范围内保持良好，从三相点温度开始到临界温度的 0.98 倍左右结束，在该温度下，我们研究的液体的热导率在实验上取最小值。工程师和研究人员可以使用所提出的相关性来直接估计/计算此处考虑的液体的热导率，并具有很高的准确度。与导热相关的工业和工程设备设计以及化学工艺设计将从中受益匪浅。