Modelling Vapor-Liquid Equilibria in the CHF3 + Isobutylbenzene System

Authors

  • C. Bogatu Transilvania University of Brasov, Romania
  • R. Vilcu University of Bucharest, Romania
  • A. Duta Transilvania University of Brasov, Romania
  • D. Geana Politehnica University of Bucharest, Romania
  • E. Straver Delft University of Technology, Netherland
  • T.W. de Loos Delft University of Technology

Keywords:

high pressure phase behavior, VLE modelling, PR EoS and SRK EoS, van der Waals mixing rules

Abstract

Peng Robinson (PR) and Soave Redlich Kwong (SRK) equations of state (EoS) are used for the modeling of the liquid-vapor equilibrium data for the system consisting of refrigerant, trifluormethane and lubricant, isobutylbenzene. Van der Waals mixing rules with one (1PCMR) or two parameters (2PCMR) were coupled with the tested EoS. The correlations established by means of the PR and SRK - van der Waals model are in qualitative agreement with the experimental data, measured for temperatures T=250…400 K and pressures P = 1.5…15 MPa. The average deviation in pressure (AADP) is less than 2% when 2PCMR mixing rules are used.

Author Biographies

C. Bogatu, Transilvania University of Brasov, Romania

Centre “Product Design for Sustainable Development

R. Vilcu, University of Bucharest, Romania

Chemical-Physics Department

A. Duta, Transilvania University of Brasov, Romania

Centre “Product Design for Sustainable Development”

D. Geana, Politehnica University of Bucharest, Romania

Applied Physical Chemistry and Electrochemistry Department

E. Straver, Delft University of Technology, Netherland

Maritime & Materials Engineering Department

T.W. de Loos, Delft University of Technology

Maritime & Materials Engineering Department

Published

2008-12-17

Issue

Vol. 1(50)(2008)

Section

MATERIALS SCIENCE AND ENGINEERING