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- W2786259780 abstract "This study dealt with the prediction and correlationof vapor-liquid equilibria behavior of nonideal fluids. Thethermodynamic formalism of the GE-EoS models, which combines thetwo traditional methods γ-Φ and Φ-Φ used so far for low and highpressure phase equilibria correlations respectively, has beencombined with the 1FGE model, based on one-fluid theory, to producea more consistent approach to the phase equilibrium problem. In thefirst part of our study we examine the predictive abilities of ourmodel for vapor-liquid equilibria of highly nonideal fluids. Theresults establish the fact that the Huron-Vidal mixing rule with aone parameter version of the lFGE model, is able to successfullyutilize available experimental information at low pressures forphase equilibria predictions of multicomponent mixtures over anextended range of pressures and temperatures. In the second part ofthe study we perform an analysis of the correlative abilities ofthe 1FGE model, as applied to hydrogen-hydrocarbon mixtures. Theresults of this part suggest that the unique local compositioncharacter of the 1FGE model, along with its one size and onetemperature-dependent energy parameter, make it able to adequatelydescribe vapor-liquid equilibria behavior of multicomponentmixtures for this highly asymmetric class of mixtures. Moreover, itis shown that the model parameters for binary hydrogen-hydrocarbonmixtures can be correlated to the acentric factor of thehydrocarbon. The important class of the refrigerant mixtures wasmodeled in the third part of this study. The lFGE model wasintroduced into the Wong-Sandler mixing rule, based on the infinitepressure state thermodynamic formalism. The results for thesesystems showed that a limited amount of experimental data, eitherat low or high pressures can be utilized to provide a parameterwhich is practically independent of the temperature set used. Asshown from the results, this single parameter can be used to extendvapor-liquid equilibria predictions over a range of conditions forthis difficult class of systems. More importantly, we set aheuristic rule able to screen multiparameter and one parametermodels. A coordination temperature-parameter planet can be used asa predictive tool from a limited amount of information. Our modelcomes in lieu of the GE models based on two-fluid theory, which areinconsistent with the one fluid character of an EoS. The 1FGE-EoSframework proposed in this work meets current needs in the area ofApplied Thermodynamics, which require that the model's parameterscan be obtained from a limited information of experimental data andcan give for accurate phase equilibria predictions of nonidealmixtures from low to high pressures." @default.
- W2786259780 created "2018-02-23" @default.
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- W2786259780 date "1996-01-01" @default.
- W2786259780 modified "2023-09-23" @default.
- W2786259780 title "Vapor-liquid phase equilibria of nonideal fluids with a Ge-EoS model" @default.
- W2786259780 hasPublicationYear "1996" @default.
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