Saturated liquid densities and bubble-point pressures of the binary HFC 152a+HCFC 142b system

Y. Maezawa, J. V. Widiatmo, H. Sato, K. Watanabe

Research output: Contribution to journalArticle

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Abstract

Forty-eight sets of the saturated liquid densities and bubble-point pressures of the binary HFC 152a + HCFC 142b system were measured with a magnetic densimeter coupled with a variable-volume cell. The measurements obtained at four compositions, 20, 40, 60, and 80 wt%, of HFC 152a cover a range of temperatures from 280 to 400 K. The experimental uncertainties in temperature, pressure, density, and composition were estimated to be within ±15mK, ±20kPa, ±0.2%, and between -0.14 and ±0.01 wt% HFC 152a (-0.01 and + 0.14 wt% HCFC 142b), respectively. The purities of the samples were 99.9 wt% for HFC 152a and 99.8 wt% for HCFC 142b. A binary interaction parameter, kij, in the Peng-Robinson equation of state was determined as a function of temperature for representing the bubble-point pressures. On the other hand, two constant binary-interaction parameters, kij and lij, were introduced into the mixing rule of the Hankinson-Brobst-Thomson equation for representing the saturated liquid densities.

Original languageEnglish
Pages (from-to)1029-1038
Number of pages10
JournalInternational Journal of Thermophysics
Volume12
Issue number6
DOIs
Publication statusPublished - 1991 Nov

Fingerprint

Density of liquids
bubbles
liquids
densimeters
Chemical analysis
Equations of state
Temperature
temperature
purity
equations of state
interactions
cells

Keywords

  • bubble-point pressure
  • HCFC 142b (CH CClF)
  • HFC 152a (CH CHF)
  • mixtures
  • refrigerants
  • saturated liquid density

ASJC Scopus subject areas

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

Cite this

Saturated liquid densities and bubble-point pressures of the binary HFC 152a+HCFC 142b system. / Maezawa, Y.; Widiatmo, J. V.; Sato, H.; Watanabe, K.

In: International Journal of Thermophysics, Vol. 12, No. 6, 11.1991, p. 1029-1038.

Research output: Contribution to journalArticle

Maezawa, Y. ; Widiatmo, J. V. ; Sato, H. ; Watanabe, K. / Saturated liquid densities and bubble-point pressures of the binary HFC 152a+HCFC 142b system. In: International Journal of Thermophysics. 1991 ; Vol. 12, No. 6. pp. 1029-1038.
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AB - Forty-eight sets of the saturated liquid densities and bubble-point pressures of the binary HFC 152a + HCFC 142b system were measured with a magnetic densimeter coupled with a variable-volume cell. The measurements obtained at four compositions, 20, 40, 60, and 80 wt%, of HFC 152a cover a range of temperatures from 280 to 400 K. The experimental uncertainties in temperature, pressure, density, and composition were estimated to be within ±15mK, ±20kPa, ±0.2%, and between -0.14 and ±0.01 wt% HFC 152a (-0.01 and + 0.14 wt% HCFC 142b), respectively. The purities of the samples were 99.9 wt% for HFC 152a and 99.8 wt% for HCFC 142b. A binary interaction parameter, kij, in the Peng-Robinson equation of state was determined as a function of temperature for representing the bubble-point pressures. On the other hand, two constant binary-interaction parameters, kij and lij, were introduced into the mixing rule of the Hankinson-Brobst-Thomson equation for representing the saturated liquid densities.

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