Wide-ranging absolute viscosity measurements of sub- and supercritical 1,1,1-trifluoroethane (R143a)

Laesecke, Arno; Meier, Karsten; Hafer, Richard F.

doi:10.1016/j.molliq.2017.12.010

Title: Wide-ranging absolute viscosity measurements of sub- and supercritical 1,1,1-trifluoroethane (R143a)

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Authors:: Laesecke, Arno; Meier, Karsten; Hafer, Richard F.

Publication Date:: 2018-02-01

Sponsoring Org.:: USDOE

OSTI Identifier:: 1548956

Grant/Contract Number:: AI01-91CE23808; FG02-91CE23810; 665-50800

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Journal of Molecular Liquids

Additional Journal Information:: Journal Name: Journal of Molecular Liquids Journal Volume: 251 Journal Issue: C; Journal ID: ISSN 0167-7322

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

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                    Laesecke, Arno, Meier, Karsten, and Hafer, Richard F. Wide-ranging absolute viscosity measurements of sub- and supercritical 1,1,1-trifluoroethane (R143a).  Netherlands: N. p., 2018. 
Web.  doi:10.1016/j.molliq.2017.12.010.

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                    Laesecke, Arno, Meier, Karsten, & Hafer, Richard F. Wide-ranging absolute viscosity measurements of sub- and supercritical 1,1,1-trifluoroethane (R143a).  Netherlands.  https://doi.org/10.1016/j.molliq.2017.12.010

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                    Laesecke, Arno, Meier, Karsten, and Hafer, Richard F. Thu .  
"Wide-ranging absolute viscosity measurements of sub- and supercritical 1,1,1-trifluoroethane (R143a)".  Netherlands.  https://doi.org/10.1016/j.molliq.2017.12.010.

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@article{osti_1548956,

  title        = {Wide-ranging absolute viscosity measurements of sub- and supercritical 1,1,1-trifluoroethane (R143a)},

  author       = {Laesecke, Arno and Meier, Karsten and Hafer, Richard F.},

  abstractNote = {},

  doi          = {10.1016/j.molliq.2017.12.010},

  journal      = {Journal of Molecular Liquids},

  number       = C,

  volume       = 251,

  place        = {Netherlands},

  year         = {2018},

  month        = {2}

}

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Wide-ranging absolute viscosity measurements of sub- and supercritical 1,1,1-trifluoroethane (R143a)

Journal Article Laesecke, Arno ; Meier, Karsten ; Hafer, Richard F. - Journal of Molecular Liquids

Not provided.
https://doi.org/10.1016/j.molliq.2017.12.010
Isochoric p-{rho}-T measurements on 1,1-difluoroethane (R152a) from 158 to 400 K and 1,1,1-trifluoroethane (R143a) from 166 to 400 K at pressures to 35 MPa

Journal Article Magee, J W - International Journal of Thermophysics

The p-{rho}-T relationships have been measured for 1,1-difluoroethane (R152a) and 1,1,1-trifluoroethane (R143a) by an isochoric method with gravimetric determinations of the amount of substance. Temperatures ranged from 158 to 400K for R152a and from 166 to 400 K for R143a, while pressures were up to 35 MPa. Measurements were conducted on compressed liquid samples. Determinations of saturated liquid densities were made by extrapolating each isochore to the vapor pressure, and determining the temperature and density at the intersection. Published p-{rho}-T data are in good agreement with this study. For the p-{rho}-T apparatus, the uncertainty of the temperature is {+-}0.03 K,more »« less
https://doi.org/10.1023/A:1021931518519
Molar heat capacity at constant volume of 1,1-difluoroethane (R152a) and 1,1,1-trifluoroethane (R143a) from the triple-point temperature to 345 k at pressure to 35 MPa

Journal Article Magee, J W - International Journal of Thermophysics

Molar heat capacities at constant volume (C{sub v}) of 1,1-difluoroethane (R152a) and 1,1,1-trifluoroethane (R143a) have been measured with an adiabatic calorimeter. Temperatures ranged from their triple points to 345 K, and pressures up to 35 MPa. Measurements were conducted on the liquid in equilibrium with its vapor and on compressed liquid samples. The samples were of high purity, verified by chemical analysis of each fluid. For the samples, calorimetric results were obtained for two-phase (C{sub v}{sup (2)}), saturated-liquid (C{sub {sigma}} or C{sub x}{prime}), and single-phase (C{sub v}) molar heat capacities. The C{sub {sigma}} data were used to estimate vapor pressuresmore »« less
https://doi.org/10.1023/A:1021983502589
An equation of state for the thermodynamic properties of R143a (1,1,1-trifluoroethane)

Journal Article Outcalt, S L ; McLinden, M O - International Journal of Thermophysics

Thermodynamic properties of 1,1,1-trifluoroethane (R143a) are expressed in terms of a 32-term modified Benedict-Webb-Rubin (MBWR) equation of state. Coefficients are reported for the MBWR equation and for ancillary equations used to fit the ideal-gas heat capacity, and the coexisting densities and pressure along the saturation boundary. The MBWR coefficients were determined from a multiproperty fit that used the following types of experimental data: PVT; isochoric, isobaric, and saturated-liquid heat capacities; second virial coefficients; speed of sound and properties at coexistence. The equation of state was optimized to the experimental data from 162 to 346 K and pressures to 35 MPamore »« less
https://doi.org/10.1007/BF02575344
Subatmospheric vapor pressures for fluoromethane (R41), 1,1-difluoroethane (R152a), and 1,1,1-trifluoroethane (R143a) evaluated from internal-energy measurements

Journal Article Duarte-Garza, H A ; Magee, J W - International Journal of Thermophysics

Vapor pressures were evaluated from measured internal-energy changes {Delta}U{sup (2)} in the vapor + liquid two-phase region. The method employed a thermodynamic relationship between the derivative quantity ({partial_derivative}U{sup (2)}/{partial_derivative}V){sub T}, the vapor pressure p{sub {sigma}}, and its temperature derivative ({partial_derivative}p/{partial_derivative}T){sub {sigma}}. This method was applied at temperatures between the triple point and the normal boiling point of three substances: fluoromethane (R41), 1,1-difluoroethane (R152a), and 1,1,1-trifluoroethane (R143a). In the case of R41, vapor pressures up to 1 MPa were calculated to validate the technique at higher pressures. For R152a, the calculated vapor pressure at the triple-point temperature differed from a directmore »« less
https://doi.org/10.1023/A:1021493106087

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