ESTIMATION OF LIQUID AND SOLID HEAT-CAPACITIES USING A MODIFIED KOPPS RULE

被引：90

作者：

HURST, JE ^{[1
]}

HARRISON, BK ^{[1
]}

机构：

[1] UNIV SO ALABAMA,DEPT CHEM ENGN,MOBILE,AL 36695

来源：

CHEMICAL ENGINEERING COMMUNICATIONS | 1992年 / 112卷

关键词：

HEAT CAPACITY; SOLID; LIQUID; SPECIFIC HEAT; ESTIMATION; CORRELATION;

D O I：

10.1080/00986449208935989

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Element based correlations are developed for the estimation of solid and liquid heat capacities (Cp) at 298 K. The correlations follow the general format, Cp= Σ CENE, where CEis a coefficient associated with each element in the compound and NE is the number of occurrences of the element in the compound. The developed correlations provide a suitable alternative when neither experimental data nor the parameters for more rigorous estimation methods exist. The average absolute errors for the correlations are 9.6% for solids and 8.8% for liquids. These results represent a substantial improvement to Kopp's Rule, the original element based correlation. © 1992, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：21 / 30

页数：10

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