Cubic equation of state as a quartic in disguise
In: Fluid Phase Equilibria, Jg. 531 (2021-03-01), S. 112908-112908
Online
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Zugriff:
A six parameter Quartic equation of state (QEOS) is presented in this work to explore the scope of a non-cubic equation of state for the prediction of thermodynamic properties and analyze its improvement over the commonly used cubic equations of state. The QEOS uses 4 compound specific parameters in addition to the critical constants. The QEOS predicted results for various thermodynamic properties are compared with experimental data and with results obtained from Ghoderao-Dalvi-Narayan (4PGDN1) equation of state. The QEOS fits data best when it most resembles a Cubic EOS (CEOS) obtained by setting one compound specific parameter e to nearly zero. This presents an opportunity to use the CEOS for practical calculations while using the theoretically more correct QEOS for theoretical analysis.
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Cubic equation of state as a quartic in disguise
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Autor/in / Beteiligte Person: | Narayan, Mohan ; Kukreja, Naman ; Pradnya N.P. Ghoderao ; Dalvi, Vishwanath H. |
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Zeitschrift: | Fluid Phase Equilibria, Jg. 531 (2021-03-01), S. 112908-112908 |
Veröffentlichung: | Elsevier BV, 2021 |
Medientyp: | unknown |
ISSN: | 0378-3812 (print) |
DOI: | 10.1016/j.fluid.2020.112908 |
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