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

Authors
KLUPPEL M SCHULZ S ULBIG P
Citation
M. Kluppel et al., UNIVAP - A GROUP-CONTRIBUTION METHOD FOR THE PREDICTION OF ENTHALPIESOF VAPORIZATION OF PURE SUBSTANCES, Fluid phase equilibria, 102(1), 1994, pp. 1-15
Citations number
10
Categorie Soggetti
Engineering, Chemical","Chemistry Physical
Journal title
Fluid phase equilibria → ACNP
ISSN journal
03783812
Volume
102
Issue
1
Year of publication
1994
Pages
1 - 15
Database
ISI
SICI code
0378-3812(1994)102:1<1:U-AGMF>2.0.ZU;2-N
Abstract
A new group contribution method for calculating the heat of vaporizati on DELTAH(V) of pure substances based on UNIFAC is presented in this p aper. 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 t o a large number of DELTAH(V) data, using the Thermodynamic Data Base (TDB).