Density and viscosity measurements of 1,1,1,2-tetrafluoroethane (HFC-134a) from 199 K to 298 K and up to 100 MPa

Journal Article · Mon Jul 01 00:00:00 EDT 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je9501954· OSTI ID:367818

Padua, A A.H.; Fareleira, J M.N.A.; Calado, J C.G. ^[1]; Wakeham, W A ^[2]

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1. Inst. Superior Tecnico, Lisboa (Portugal)
2. Imperial Coll. (United Kingdom). Dept. of Chemical Engineering and Chemical Technology

New density results for liquid 1,1,1,2-tetrafluoroethane (HFC-134a) along five isotherms from 199 K to 298 K and at pressures up to 100 MPa are presented. The measurements were performed with a new vibrating-wire instrument operated in the forced mode of oscillation and were carried out on a round-robin sample of refrigerant HFC-134a. The viscosity of the fluid was measured simultaneously with the density, using the same vibrating-wire sensor, at temperatures above 248 K over the entire pressure range. The results are compared with recent literature data. The precision of the present values is {+-}0.03% for the density and {+-}0.6% for the viscosity. The corresponding estimated accuracies are {+-}0.05% and {+-}2.5%, respectively.

• OSTI ID: 367818
• Journal Information: Journal of Chemical and Engineering Data, Vol. 41, Issue 4; Other Information: PBD: Jul-Aug 1996
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
REFRIGERANTS
DENSITY
VISCOSITY
FLUORINATED ALIPHATIC HYDROCARBONS
MEASURING METHODS
INTERLABORATORY COMPARISONS
ACCURACY
EXPERIMENTAL DATA
CHLOROFLUOROCARBONS
MATERIAL SUBSTITUTION