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

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

研究成果: Article査読

39 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1639-1651
ページ数13
ジャーナルInternational Journal of Thermophysics
20
6
DOI
出版ステータスPublished - 1999

ASJC Scopus subject areas

  • 凝縮系物理学

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