PVTx properties of difluoromethane + pentafluoroethane (R-32 + 125) and difluoromethane + pentafluoroethane + 1,1,1,2-tetrafluoroethane (R-32 + 125 + 134a)

Journal Article · Fri Nov 01 00:00:00 EST 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je960095d· OSTI ID:404525

Kiyoura, Hideaki; Takebe, Jiro; Uchida, Hirokatsu; Sato, Haruki; Watanabe, Koichi ^[1]

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1. Keio Univ., Yokohama (Japan). Dept. of Mechanical Engineering

The experimental pressure-volume-temperature-composition (PVTx) properties of a binary refrigerant, a system of difluoromethane (R-32) + pentafluoroethane (R-125), R-32 + 125, and a ternary refrigerant, a system of R-32, R-125, and 1,1,1,2-tetrafluoroethane (R-134a), R-32 + 125 + 134a, have been measured by a constant-volume method coupled with expansion procedures in an extensive range of temperatures, pressures, and densities. Ninety-four PVTx property data of the R-32 + 125 system were measured in a range of temperatures from (330 to 440) K, of pressures from (1.8 to5.2) MPa, and of densities from (67 to 158) kg/m{sup 3}, of the compositions of 20.089 and 39.977 mass % R-32. One hundred and five PVTx property data of the R-32 + 125 + 134a system were measured in a range of temperatures from (315 to 440) K, of pressures from (1.6 to 5.7) MPa, and of densities from (67 to 166) kg/m{sup 3}, at compositions of (22.993/25.026/51.981), (23.075/25.112/51.813), (30.018/10.059/59.924), (29.996/29.971/40.033), (33.408/33.257/33.335) mass %.

• OSTI ID: 404525
• Journal Information: Journal of Chemical and Engineering Data, Vol. 41, Issue 6; Other Information: PBD: Nov-Dec 1996
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
FLUORINATED ALIPHATIC HYDROCARBONS
PHYSICAL PROPERTIES
REFRIGERANTS
THERMODYNAMIC PROPERTIES
CHEMICAL COMPOSITION
MATERIAL SUBSTITUTION
EXPERIMENTAL DATA