An equation of state for 1,1,1-trifluoroethane (R-143a)

J. Li, R. Tillner-Roth, H. Sato, K. Watanabe

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

A fundamental equation of state has been developed for 1,1,1-trifluoroethane (R-143a) using the dimensionless Helmholtz energy. The experimental thermodynamic property data, which cover temperatures from the triple point (161 K) to 433 K and pressures up to 35 M Pa, are used to develop the present equation. These data are represented by the present equation within their reported experimental uncertainties: ±0.1% in density for both vapor and liquid phase P-ρ- T data, ±1% in isochoric specific heat capacities, and ±0.02% in the vapor phase speed-of-sound data. The extended range of validity of the present model covers temperatures from 160 to 650 K and pressures up to 50 M Pa as verified by the thermodynamic behavior of the isobaric heat-capacity values over the entire fluid phase.

Original languageEnglish
Pages (from-to)1639-1651
Number of pages13
JournalInternational Journal of Thermophysics
Volume20
Issue number6
Publication statusPublished - 1999
Externally publishedYes

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Equations of state
Specific heat
equations of state
specific heat
Vapors
vapor phases
Acoustic wave velocity
liquid phases
Thermodynamic properties
thermodynamic properties
Thermodynamics
Temperature
thermodynamics
Fluids
temperature
acoustics
fluids
Liquids
1,1,1-trifluoroethane
energy

Keywords

  • 1,1,1-trifluoroethane
  • Alternative refrigerant
  • Equation of state
  • Helmholtz energy
  • R-143a

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Mechanics of Materials
  • Computational Mechanics
  • Fluid Flow and Transfer Processes
  • Physics and Astronomy (miscellaneous)
  • Condensed Matter Physics

Cite this

Li, J., Tillner-Roth, R., Sato, H., & Watanabe, K. (1999). An equation of state for 1,1,1-trifluoroethane (R-143a). International Journal of Thermophysics, 20(6), 1639-1651.

An equation of state for 1,1,1-trifluoroethane (R-143a). / Li, J.; Tillner-Roth, R.; Sato, H.; Watanabe, K.

In: International Journal of Thermophysics, Vol. 20, No. 6, 1999, p. 1639-1651.

Research output: Contribution to journalArticle

Li, J, Tillner-Roth, R, Sato, H & Watanabe, K 1999, 'An equation of state for 1,1,1-trifluoroethane (R-143a)', International Journal of Thermophysics, vol. 20, no. 6, pp. 1639-1651.
Li J, Tillner-Roth R, Sato H, Watanabe K. An equation of state for 1,1,1-trifluoroethane (R-143a). International Journal of Thermophysics. 1999;20(6):1639-1651.
Li, J. ; Tillner-Roth, R. ; Sato, H. ; Watanabe, K. / An equation of state for 1,1,1-trifluoroethane (R-143a). In: International Journal of Thermophysics. 1999 ; Vol. 20, No. 6. pp. 1639-1651.
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