Measurements of PVTx properties for the binary refrigerant HCFC 142b + HCFC 22 system

Katsuhiko Kumagal, Naoyuki Yada, Haruki Sato, Koichi Watanabe

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

This paper reports PVTx properties for the HCFC 142b + HCFC 22 system in a wide range of temperatures from 297 to 443 K, of pressures from 0.5 to 10.0 MPa, and of densities from 72 to 1079 kg/m3. For 4 compositions, i.e., 20, 40, 60, and 80 wt % HCFC 142b, 422 PVTx measurements have been made along 31 isochores. The uncertainties of the temperature, pressure, and density measurements are less than ±10 mK, ±3.0 kPa, and ±0.1%, respectively. From the PVTx measurements for 20, 40, 60, and 80 wt % HCFC 142b, we have determined dew points and bubble points, enabling us to construct the dew- and bubble-point curves for each composition. We have also compared the vapor-liquid equilibrium data along three isotherms, where the experimental data are reported by others, with the vapor-liquid equilibrium curve calculated from the Raoult's law.

Original languageEnglish
Pages (from-to)236-240
Number of pages5
JournalJournal of Chemical and Engineering Data
Volume36
Issue number2
Publication statusPublished - 1991 Apr

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Refrigerants
Phase equilibria
Isochores
Pressure measurement
Chemical analysis
Temperature measurement
Isotherms
Temperature
Uncertainty

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Measurements of PVTx properties for the binary refrigerant HCFC 142b + HCFC 22 system. / Kumagal, Katsuhiko; Yada, Naoyuki; Sato, Haruki; Watanabe, Koichi.

In: Journal of Chemical and Engineering Data, Vol. 36, No. 2, 04.1991, p. 236-240.

Research output: Contribution to journalArticle

Kumagal, Katsuhiko ; Yada, Naoyuki ; Sato, Haruki ; Watanabe, Koichi. / Measurements of PVTx properties for the binary refrigerant HCFC 142b + HCFC 22 system. In: Journal of Chemical and Engineering Data. 1991 ; Vol. 36, No. 2. pp. 236-240.
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