Gas-phase PVT properties of 1,1,1,2,3,3-hexafluoropropane

H. L. Zhang, H. Sato, K. Watanabe

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We have measured the gas-phase PVT properties of 1,1,1,2,3,3-hexafluoropropane (R-236ea), which is considered to be a promising candidate for the replacement of 1,2-dichlorotetrafluoroethane (R-114). The measurements have been performed with a Burnett apparatus over a temperature range of 340-390 K and at pressures of 0.10-2.11 MPa. The experimental uncertainties of the measurements were estimated to be within ±0.5 kPa in pressure, ±8 mK in temperature, and ±0.15% in density. A truncated virial equation of state was developed to represent the PVT data and the second virial coefficients were also derived. The saturated vapor densities were also calculated by extrapolating the gas-phase isotherms to the vapor pressures. The critical density estimated from the rectilinear diameter was compared with the experimental value. The purity of the R-236ea sample used in the present measurements was 99.9 mol%.

Original languageEnglish
Pages (from-to)407-418
Number of pages12
JournalInternational Journal of Thermophysics
Volume18
Issue number2
Publication statusPublished - 1997 Mar

Fingerprint

Gases
vapor phases
Density of gases
virial coefficients
Vapor pressure
Equations of state
vapor pressure
Isotherms
isotherms
purity
equations of state
vapors
Temperature
temperature
Freon 114
Uncertainty

Keywords

  • Burnett method
  • Critical density
  • PVT properties
  • R-236ea
  • Saturated vapor density
  • Second virial coefficient

ASJC Scopus subject areas

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

Cite this

Zhang, H. L., Sato, H., & Watanabe, K. (1997). Gas-phase PVT properties of 1,1,1,2,3,3-hexafluoropropane. International Journal of Thermophysics, 18(2), 407-418.

Gas-phase PVT properties of 1,1,1,2,3,3-hexafluoropropane. / Zhang, H. L.; Sato, H.; Watanabe, K.

In: International Journal of Thermophysics, Vol. 18, No. 2, 03.1997, p. 407-418.

Research output: Contribution to journalArticle

Zhang, HL, Sato, H & Watanabe, K 1997, 'Gas-phase PVT properties of 1,1,1,2,3,3-hexafluoropropane', International Journal of Thermophysics, vol. 18, no. 2, pp. 407-418.
Zhang, H. L. ; Sato, H. ; Watanabe, K. / Gas-phase PVT properties of 1,1,1,2,3,3-hexafluoropropane. In: International Journal of Thermophysics. 1997 ; Vol. 18, No. 2. pp. 407-418.
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