摘要
分析了在国际化学化工学术界有影响的Ｂｒｉｄｇｍ ａｎ 理论式及著名的Ｌａｔｉｎｉ经验式的不足后，以张克武气体不平衡状态理论方程导出的液体导热率理论方程和有机分子的半金属结构理论为基础，建立了用分子结构来计算液体导热率的理论方程．以液烃、醚、醛、酮和酯等２５６ 种纯质８５０ 个实验数据检验，平均误差１．８％ ，其精确度比Ｂｒｉｄｇｍ ａｎ 理论式约高１０ 倍，比Ｌａｔｉｎｉ式高５ 倍，显著优于前人公式．
We analyzed the drawback of the theoretical formula of important influence of Bridgman who had won the Nobel prize of 1946 and the famous empiric formula of Latini et al. in the international scientific of heat transmission and chemical engineering circle. After that according to ZhangKewu′s theoretical equation for nonequilibrium state of gases (TENSG) which is based on argon model and the semi metal structural model of organic molecules, a new theoretical equation for calculation thermal conductivity λ l of liquids to use molecular structure was derived. This equation can be applied to both polar and nonpolar liquids: hydrocarbons, ethers, aldehydes, ketones, and esters, etc. The average error from 850 experimental values is 1.8% based on 256 compounds of 20 structural types.Its accuracy are about 10 times and 5 times higher than that of Bridgman′s method and Latini et al.method respectively, and it is far better than all our predecessors formulas. The physical meaning of the present equation is clear and definite, so that 2 new important rules may be obtained by logical reasoning. This paper solve one of the tremendous research tasks in the overlapping parts of chemistry and statistical physics and the achievement is a great breakthrough in basic research. Practice shows that the argon model is of great significance in developing technological sciences. Conclusively,the λ l of liquids calculated accurately on molecular and microcosmic particle level with theoretical method,however, had not been found in the published literatures.
出处
《应用基础与工程科学学报》
EI
CSCD
1999年第2期149-157,共9页
Journal of Basic Science and Engineering
基金
国家自然科学基金
吉林省应用基础资助
