UNIVAP - A GROUP-CONTRIBUTION METHOD FOR THE PREDICTION OF ENTHALPIES OF VAPORIZATION OF PURE SUBSTANCES

被引:6
作者
KLUPPEL, M [1 ]
SCHULZ, S [1 ]
ULBIG, P [1 ]
机构
[1] UNIV DORTMUND,LEHRSTUHL THERMODYNAM,D-44227 DORTMUND,GERMANY
关键词
THEORY; METHODS OF CALCULATION; GROUP CONTRIBUTION; HEATS OF VAPORIZATION;
D O I
10.1016/0378-3812(94)87088-8
中图分类号
O414.1 [热力学];
学科分类号
摘要
A new group contribution method for calculating the heat of vaporization DELTAH(V) of pure substances based on UNIFAC is presented in this paper. The UNIVAP (UNIversal heats of VAPorization) method permits this calculation over a wide temperature range with high accuracy. A mean relative deviation of 1,25 % was found. A sound theoretical background enables good predictions. The parameters were simultaneously fitted to a large number of DELTAH(V) data, using the Thermodynamic Data Base (TDB).
引用
收藏
页码:1 / 15
页数:15
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