TY - JOUR
T1 - Bubble-point pressures and saturated- and compressed-liquid densities of the binary R-125 + R-143a system
AU - Fujimine, T.
AU - Sato, H.
AU - Watanabe, K.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Bubble-point pressures and saturated- and compressed-liquid densities of the binary R-125 (pentafluoroethane) + R-143a (1,1,1-trifluoroethane) system have been measured for several compositions at temperatures from 280 to 330 K by means of a magnetic densimeter coupled with a variable-volume cell mounted with a metallic bellows. The experimental uncertainties of the temperature, pressure, density, and composition were estimated to be within ±10 mK, ±12 kPa, ±0.2%, and ±0.2 mass%, respectively. The purities of the samples used throughout the measurements are 99.96 area% for R-125 and 99.94 area% for R-143a. Based on these measurements, the thermodynamic behavior of the vapor-liquid equilibria of this binary refrigerant mixture has been represented using the Peng-Robinson equation for the bubble-point pressures, a correlation for the saturated-liquid densities, and an equation of state for the compressed-liquid densities.
AB - Bubble-point pressures and saturated- and compressed-liquid densities of the binary R-125 (pentafluoroethane) + R-143a (1,1,1-trifluoroethane) system have been measured for several compositions at temperatures from 280 to 330 K by means of a magnetic densimeter coupled with a variable-volume cell mounted with a metallic bellows. The experimental uncertainties of the temperature, pressure, density, and composition were estimated to be within ±10 mK, ±12 kPa, ±0.2%, and ±0.2 mass%, respectively. The purities of the samples used throughout the measurements are 99.96 area% for R-125 and 99.94 area% for R-143a. Based on these measurements, the thermodynamic behavior of the vapor-liquid equilibria of this binary refrigerant mixture has been represented using the Peng-Robinson equation for the bubble-point pressures, a correlation for the saturated-liquid densities, and an equation of state for the compressed-liquid densities.
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U2 - 10.1023/A:1022643404972
DO - 10.1023/A:1022643404972
M3 - Conference article
AN - SCOPUS:0033131490
VL - 20
SP - 911
EP - 922
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
SN - 0195-928X
IS - 3
T2 - Proceedings of the 1997 13th Symposium Thermophysical Properties in Honor of Ared Cezairliyan
Y2 - 22 June 1997 through 27 June 1997
ER -