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Span, Roland; Wagner, Wolfgang

doi:10.1023/a:1022362231796

Cited by 151 publications

(45 citation statements)

References 282 publications

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“…to those calculated by Yokozeki et al [22] from the Stockmayer intermolecular potential model and as close to those from Span and Wagner [2]. Specific heat capacities in the gaseous phase are useful in ascertaining the quality of a model.…”

Section: Extrapolation Behavior and Featuressupporting

confidence: 71%

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A Rigorous Thermodynamic Property Model for Fluid-Phase 1,1-Difluoroethane (R-152a)

Astina

Sato

2004

International Journal of Thermophysics

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A new thermodynamic property model for the Helmholtz free energy with rational third virial coefficients for fluid-phase 1,1-difluoroethane (R-152a) was developed. The model was validated by existing experimental data for temperatures from the triple point to 450 K and pressures up to 60 MPa. Reasonable behavior of the second and third virial coefficients was confirmed from intermolecular potential models. The estimated uncertainties are 0.1% in density for the gaseous and liquid phases, 0.4% in density for the supercritical region, 0.05% in speed of sound for the gaseous phase, 2% in speed of sound for the liquid phase, and 1% in specific heat capacities for the liquid phase. From the reasonable behavior of the ideal curves and the third virial coefficients, the model can be assumed reliable in representing the thermodynamic properties not only at states with available experimental data but also at states for which no experimental data are available.

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Section: Extrapolation Behavior and Featuressupporting

confidence: 71%

“…Investigations of both experiments and modeling for the thermodynamic properties of R-152a are still ongoing. Several thermodynamic property models for the fluid-phase of R-152a have been proposed such as the Helmholtz energy equation of state [1,2], the MBWR equation of state [3], and the virial equation of state [4].…”

Section: Introductionmentioning

confidence: 99%

A Rigorous Thermodynamic Property Model for Fluid-Phase 1,1-Difluoroethane (R-152a)

Astina

Sato

2004

International Journal of Thermophysics

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“…Eq. (16)gives a better prediction of vapor pressure and saturated vapor density for fluids with higher values of the acentric factor, however the overall deviations for 18 fluids considered in this study are similar to those obtained by Span and Wagner[11,14,15]. Comparisons of single-phase density between the values predicted from Eq.…”

supporting

confidence: 80%

“…Span and Wagner applied the SIMOPT algorithm to a group of 15 non-and weakly polar fluids and a group of 13 polar fluids, and generated two engineering EOS, one for each group of fluids [11,14,15]. These two engineering EOS give surprisingly good accuracy and good numerical stability with merely 12 functional terms in each of them.…”

Section: Introductionmentioning

confidence: 99%

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Universal equation of state for engineering application: algorithm and application to non-polar and polar fluids

Sun

Ely

2004

Fluid Phase Equilibria

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Expanded Liquid Phases in Catalysis: Gas‐expanded Liquids and Liquid–Supercritical Fluid Biphasic Systems

Hintermair

Leitner

Jessop

2010

Handbook of Green Chemistry

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The sections in this article are A Practical Classification of Biphasic Systems Consisting of Liquids and Compressed Gases for Multiphase Catalysis Physical Properties of Expanded Liquid Phases Volumetric Expansion Density Viscosity Melting Point Interfacial Tension Diffusivity Polarity Gas Solubility Chemisorption of Gases in Liquids and their Use for Synthesis and Catalysis In Situ Generation of Acids and Temporary Protection Strategies Switchable Solvents and Catalyst Systems Using Gas‐expanded Liquids for Catalysis Motivation and Potential Benefits Sequential Reaction–Separation Processes Tunable Precipitation and Crystallization Tunable Phase Separations Tunable Miscibility Hydrogenation Reactions Carbonylation Reactions Oxidation Reactions Miscellaneous Why Perform Liquid– SCF Biphasic Reactions? By Necessity (Unintentional Immiscibility) To Facilitate Post‐Reaction Separation To Facilitate Product/Catalyst Separation in Continuous Flow Systems To Stabilize a Catalyst To Remove a Kinetic Product To Control the Concentration of Reagent or Product in the Reacting Phase To Permit Emulsion Polymerization To Create Templated Materials Biphasic Liquid– SCF Systems Solvent Selection Aqueous– SCF Biphasic Systems Ionic Liquid– SCF Biphasic Systems Polymer– SCF Biphasic Systems Liquid Product– SCF Biphasic Systems Biphasic Reactions in Emulsions Water‐in‐ SCF Inverse Emulsions SCF ‐in‐Water Emulsions Ionic Liquid‐in‐ SCF Emulsions Applications of Emulsions

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Untitled

Cited by 151 publications

References 282 publications

A Rigorous Thermodynamic Property Model for Fluid-Phase 1,1-Difluoroethane (R-152a)

A Rigorous Thermodynamic Property Model for Fluid-Phase 1,1-Difluoroethane (R-152a)

Universal equation of state for engineering application: algorithm and application to non-polar and polar fluids

Expanded Liquid Phases in Catalysis: Gas‐expanded Liquids and Liquid–Supercritical Fluid Biphasic Systems

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