Thermodynamic Properties of Fluids from Tao-Mason Equation of State: Results for Liquid, Vapor and Supercritical Regions

Papari, M. M. and Moghadasi, J. and Kiani, M. (2008) Thermodynamic Properties of Fluids from Tao-Mason Equation of State: Results for Liquid, Vapor and Supercritical Regions. In: 11th Iranian Physical Chemistry Seminar-July 2008.

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Abstract

Equations of state (EOS) are important tool in chemical engineering designs and assumed an expanding role in the study of the phase equilibria of fluids and fluid mixtures. However, most of them suffer from the fact that they fail to represent properties accurately in a vast range of temperatures and pressures. The present work assesses the performance of a molecular based equation of state known as Tao-Mason (TM) in predicting thermodynamic properties of fluids in a very wide range of temperatures encompassing 100K<T<1100K and pressures ranging from zero to 3200 bar. The fifteen fluids including argon (Ar), Krypton (Kr), xenon (Xe), nitrogen (N2), oxygen (O2), carbon dioxide (CO2), methane(CH4), ethane (C2H6), propane(C3H8), normal butane (n-C4H10), isobutene (i-C4H10), ethen (C2H4), benzene (C6H6), toluene (C7H8) and 1,1,1,2 tetra fluoroethane (R134a) are selected and compared with literature data. The calculations cover the ranges from the dilute vapor or gas to the highly compressed liquid and supercritical region. The thermodynamic properties are the vapor and liquid densities, the vapor pressure, the internal energy, the enthalpy, the entropy, the heat capacity at constant pressure and constant volume, the Joule-Thomson coefficient, and the speed of sound. It is found that the overall agreement with literature in all phases especially the vapor/gas phase is remarkable. Furthermore, the Zeno line regularity can be well represented by TM EOS.

Item Type: Conference or Workshop Item (Poster)
Persian Title: Thermodynamic Properties of Fluids from Tao-Mason Equation of State: Results for Liquid, Vapor and Supercritical Regions
Persian Abstract: -
Subjects: Divisions > Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Divisions: Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Subjects > Conferences > 11th Iranian Physical Chemistry Seminar- July 2008
Date Deposited: 17 Jun 2019 04:08
Last Modified: 17 Jun 2019 04:08
URI: http://repository.uma.ac.ir/id/eprint/6771

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