有关液体导热率及三个著名计算公式的讨论和评述

Review the Three Famous Formulas for Calculation Thermal Conductivity of Liquids in the World

文献［1］提出国际上“三个著名的液体导热率计算法”：即Latini法，沸点法（Riedel-Sato法）和张克武法．本文通过检索集了大量经过严格评审的实验数据，主要根据当前工程设计要求针对这三个方法加以对比分析、研究、证明了文献［2］（已被“SCI”收录）中提出的液体导热率理论方程计算简便，物理意义明晰，普适性好，特别是精度高，经用26类256种850个实测据验算其平均误差仅1．89％．比著名的Latini式和Riedel－Sato式的精高5倍以上。这一结论对化工、动力和高新技术的生产工艺控制和开发设计的基础计算的可靠性的保证，有很大的实用价值。

Latini etal. method, Rieddl-Sato method and Zhang Kewu's theoretical equation(see'SCI'. 1993:36141)have won the title of three famous formulas for calculation thermal conductivity of liquids in the world in literature [1].So that we collect a largeamount of expermental data in order to remark these well-known formulas. By applying to 850 experitical values from organic, inorganic, polar and nonpolar liquidsincluding 26 structural and 256 compounds, we proved that the average error of ZhangKewu, Latini et al.and Riedel-Sato formulas is 1.89%, 10.3% and 10.8% respectivly.Specially,from the approach to melting point to the approach to critical temperature inall of liquid field,its accuracy is the highest, within the range of ampirical allowableerror