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 language | English |
|---|---|
| Pages (from-to) | 1029-1038 |
| Number of pages | 10 |
| Journal | International Journal of Thermophysics |
| Volume | 12 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1991 Nov |
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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 journal › Article
}
TY - JOUR
T1 - Saturated liquid densities and bubble-point pressures of the binary HFC 152a+HCFC 142b system
AU - Maezawa, Y.
AU - Widiatmo, J. V.
AU - Sato, H.
AU - Watanabe, K.
PY - 1991/11
Y1 - 1991/11
N2 - 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.
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.
KW - bubble-point pressure
KW - HCFC 142b (CH CClF)
KW - HFC 152a (CH CHF)
KW - mixtures
KW - refrigerants
KW - saturated liquid density
UR - http://www.scopus.com/inward/record.url?scp=0007033192&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0007033192&partnerID=8YFLogxK
U2 - 10.1007/BF00503517
DO - 10.1007/BF00503517
M3 - Article
AN - SCOPUS:0007033192
VL - 12
SP - 1029
EP - 1038
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
SN - 0195-928X
IS - 6
ER -