Measurements of the vapor-liquid coexistence curve and the critical locus for several refrigerant mixtures

Conference · Wed Jan 01 00:00:00 EST 1986 · Int. J. Thermophys.; (United States)

OSTI ID:7170056

Higashi, Y; Uematsu, M; Watanabe, K; Hanley, H J.M.; Cezairliyan, A

Measurements of the vapor-liquid coexistence curve in the critical region for the systems of binary refrigerant mixture, i.e., Refrigerant 22 + Refrigerant 114 and Refrigerant 13B1 + Refrigerant 114, have been made by visual observation of the meniscus at the vapor-liquid interface within an optical cell. The experimental uncertainty of the temperature, density, and mass fraction is estimated within 15 mK, 0.5%, and 0.05%, respectively. The critical locus for these mixtures has been determined taking into consideration the disappearing meniscus level and the intensity of the critical opalescence. In accordance with the previous results of the Refrigerant 12 + Refrigerant 22 system, the coexistence curve for binary refrigerant mixtures is discussed. The composition dependence of the critical parameters for refrigerant mixtures is also discussed and compared with that of several predictive methods.

• Research Organization: Keio Univ., Yokohama
• OSTI ID: 7170056
• Report Number(s): CONF-850617-
• Journal Information: Int. J. Thermophys.; (United States), Vol. 7:1; Conference: 9. symposium on thermophysical properties, Boulder, CO, USA, 24 Jun 1985
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
REFRIGERANTS
EQUILIBRIUM
PHASE STUDIES
BINARY MIXTURES
CHEMICAL COMPOSITION
CHLORINATED ALIPHATIC HYDROCARBONS
CRITICAL PRESSURE
CRITICAL TEMPERATURE
CRYOGENICS
ENERGY EFFICIENCY
EXPERIMENTAL DATA
FLUORINATED ALIPHATIC HYDROCARBONS
HEAT PUMPS
LIQUIDS
OPTIMIZATION
REFRIGERATING MACHINERY
VAPORS
DATA
DISPERSIONS
EFFICIENCY
FLUIDS
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
INFORMATION
MACHINERY
MIXTURES
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WORKING FLUIDS
400201* - Chemical & Physicochemical Properties
420201 - Engineering- Cryogenic Equipment & Devices