An Approach to Calculate Thermodynamic Properties of Mixtures Including Propane, <Emphasis Type="Italic">n</Emphasis>-Butane,and Isobutane |
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Authors: | Email author" target="_blank">J?AvsecEmail author K?Watanabe |
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Affiliation: | (1) Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia;(2) Department of System Design Engineering, Faculty of Science and Technology, Keio University, Yokohama 223-8522, Japan |
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Abstract: | This paper discusses a mathematical model for computing the thermodynamic properties of propane, n-butane, isobutane, and their mixtures, in the fluid phase using a method based upon statistical chain theory. The constants
necessary for computations such as the characteristic temperatures of rotation, electronic state, etc. and the moments of
inertia are obtained analytically applying a knowledge of the atomic structure of the molecule. The paper presents a procedure
for calculating thermodynamic properties such as pressure, speed of sound, the Joule-Thomson coefficient, compressibility,
enthalpy, and thermal expansion coefficient. This paper will discuss, for the first time, the application of statistical chain
theory for accurate properties of binary and ternary mixtures including propane, n-butane, and isobutane, in their entire fluid phases. To calculate the thermodynamic properties of Lennard-Jones chains, the
Liu-Li-Lu model has been used. The thermodynamic properties of the hydrocarbon mixtures are obtained using the one-fluid theory.
Paper presented at the Fifteenth Symposium on Theremophysical Properties, June 22–27, 2003, Boulder, Colorado, U.S.A. |
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Keywords: | chain theory hydrocarbons isobutane n-butane mixtures propane refrigerant thermodynamic properties |
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