An equation of state for 1,1-difluroethane (HFC 152a)

Takeshi Tamatsu, Haruki Sato, Koichi Watanabe

研究成果: Article査読

6 被引用数 (Scopus)

抄録

An equation of state for 1,1-difluoroethane (HFC 152a, CH3CHF2) has been developed on the basis of reliable experimental data including PVT, liquid Cp, and saturated-liquid-density data measured by our group. It is a non-dimensionalized virial equation whose functional form is the same as that originally developed for 1,1,1,2-tetrafluoroethane (HFC 134a) in our group. The effective range is for pressures up to 15 MPa, temperatures from 230 to 450 K, and densities to 1000 kg m-3. The equation represents reliable PVT measurements within ± 1% in pressure for the superheated vapour and supercritical fluid, while within ±0.5% in density for the compressed liquid. In addition, it should be noted that the equation represents the other essential thermodynamic properties including vapour pressures, saturated-liquid/ vapour densities, isobaric/isochoric specific heats and sound velocity in both the liquid and gaseous phase of HFC 152a.

本文言語English
ページ(範囲)347-352
ページ数6
ジャーナルInternational Journal of Refrigeration
16
5
DOI
出版ステータスPublished - 1993

ASJC Scopus subject areas

  • 建築および建設
  • 機械工学

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