A NEW EQUATION OF STATE-BASED ON HOLE THEORY

Authors
PARK J KIM H
Citation
J. Park et H. Kim, A NEW EQUATION OF STATE-BASED ON HOLE THEORY, Fluid phase equilibria, 144(1-2), 1998, pp. 77-86
Citations number
16
Categorie Soggetti
Engineering, Chemical","Chemistry Physical",Thermodynamics
Journal title
Fluid phase equilibria → ACNP
ISSN journal
03783812
Volume
144
Issue
1-2
Year of publication
1998
Pages
77 - 86
Database
ISI
SICI code
0378-3812(1998)144:1-2<77:ANEOSO>2.0.ZU;2-P
Abstract
A new equation of state (EOS) based on hole theory was developed. The free volume expression used in this equation of state did not use the notion of conventional linear superposition assumption. Free volume de veloped in this paper is composed of two parts: foe volume by cell and free volume by hole. The intrinsic cell free volume is derived from s quare well potential and the free volume by hole was derived by equall y partitioning hole volume into each segment. When applied to PVT data of polymeric melts, this new equation of state shows better agreement over the SS model, especially at low pressure. (C) 1998 Elsevier Scie nce B.V.