Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Measurements of the Thermal Conductivity of HFC-134a in the Supercritical Region

Neindre, B. L., Garrabos, Y., Gumerov, F., Sabirzianov, A.
J. Chem. Eng. Data 2009, 54, 9, 2678-2688
ABSTRACT
Measurements of the thermal conductivity of HFC-134a made in a coaxial cylinder cell operating in steady state are reported. Measurements were performed along several quasi-isotherms at temperatures ranging from the critical temperature Tc (374 K) to Tc + 150 K and in a pressure range from (0.1 to 40) MPa. Parameters of a background equation were determined from experimental data to analyze the critical enhancement of the thermal conductivity as a function of temperature and density. An analysis of the various sources of errors leads to an estimated uncertainty of the thermal conductivity data of +- 3 %.
Compounds
# Formula Name
1 C2H2F4 1,1,1,2-tetrafluoroethane
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Thermal conductivity, W/m/K ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Coaxial cylinder method
  • 37
  • POMD
  • 1
  • Thermal conductivity, W/m/K ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Coaxial cylinder method
  • 696