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液体烃的分子结构与导热率 被引量:23

EXTENDED APPLICATION OF TENSG ON THERMAL CONDUCTIVITY AND MOLECULAR STRUCTURE OF LIQUID HYDROCARBONS
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摘要 分析了国际化工领域著名的Latini等式的不足后,以张克武提出的气体不平衡状态理论方程导出的液体导热率理论方程和理论定则为依据,提出液体烃导热率方程;经用各类液体烃76种362个实验数据检验,平均误差1.78%,显著优于前人公式。有重要的理论意义与应用价值。 By applying Zhang Kewu' s theoretical equation to liquid thermal conductivity, a new equation for calculation of thermal conductivity of liquid hydrocarbon is derived. The average error of calculation from 362 experimental data , 76 compounds is 1.78% .Its accuracy is about 4.7 times that of Latini et al. method (only for calculated λL of hydrocarbons) , recommended by Reid et al. It is far better than existing equations in terms of firm theoretical basis.λh can be simply and accurately obtained by only knowing the molecular structure of pure hydrocarbons. This equation is definite in physical nature and is theoretically important and practically valuable.
出处 《化工学报》 EI CAS CSCD 北大核心 1999年第2期247-253,共7页 CIESC Journal
基金 国家自然科学基金科学部主任基金资助项目(No.29746002) 首钢总公司资助
关键词 液体烃 导热率 理论方程 分子结构 theoretical equation of nonequilibrium state of gas (TENSG) , theoretical equation of ther-mal conductivity of liquid hydrocarbons, semi - metal structure model, argon model
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