Vapor pressure and gas phase PVT data and correlation for 1,1,1-trifluoroethane (R143a)

Journal Article · Sat Jul 01 00:00:00 EDT 1995 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je00020a037· OSTI ID:94350

Giuliani, G; Polonara, F ^[1]; Kumar, S ^[1]; Zazzini, P ^[2]

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1. Univ. di Ancona (Italy). Dipt. di Energetica
2. Univ. de L`Aquila (Italy). Dipt. di Energetica

A constant volume apparatus has been used to measure the vapor pressure and single phase densities (PVT) for 1,1,1-trifluoroethane (R143a), an ozone friendly refrigerant. The sample has a purity greater than 99.91% by mass. The measurements were done from 244 to 365 K at pressures up to 4.4 MPa and at densities ranging from 5% to 99% of the critical density. The uncertainties involved in the measurement of temperature, pressure, mass, volume, and specific volume are explicitly given. Thirty-three values for the vapor pressure and sixty-three densities along six isochores are presented and have been compared with previously published data and correlations. A Wagner type correlation for the vapor pressure and a Martin-Hou equation of state have been used to fit the measured data, which have been analyzed using the average absolute deviation, bias, and standard deviation. The gas phase densities have been used to determine the second virial coefficients.

• Sponsoring Organization: USDOE
• OSTI ID: 94350
• Journal Information: Journal of Chemical and Engineering Data, Vol. 40, Issue 4; Other Information: PBD: Jul-Aug 1995
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
FLUORINATED ALIPHATIC HYDROCARBONS
THERMODYNAMIC PROPERTIES
REFRIGERANTS
DENSITY
OZONE LAYER
CHLOROFLUOROCARBONS
MATERIAL SUBSTITUTION
TEMPERATURE RANGE 0273-0400 K
MEDIUM PRESSURE
EQUATIONS OF STATE
EXPERIMENTAL DATA