Experimental Thermal Conductivity Values for the IUPAC Round-Robin Sample of 1,1,1,2-Tetrafluoroethane (R134a)

Published

December 1, 2000

Author(s)

Richard A. Perkins, Arno D. Laesecke, J -. Howley, M L. Ramires, A N. Gurova, L -. Cusco

Abstract

Experimental measurements are reported for the thermal conductivity of 1,1,1,2-tetrafluoroethane (R134a). These measurements were obtained with transient and steady-state hot wires; both bare platinum and anodized tantalum hot wires were used to examine effects due to the relatively high polarity of R134a. In collaboration with the IUPAC subcommittee on Transport Properties, the measurements cover the temperature region from 200 to 450 K at pressures to 70 Mpa. Measurements were made in the subcritical vapor, compressed liquid and supercritical fluid phases. The data are compared with a wide-range correlation for the thermal conductivity of R134a that was developed under the auspices of the IUPAC subcommittee on Transport Properties.

Citation

NIST Interagency/Internal Report (NISTIR) - 6605

Report Number

6605

NIST Pub Series

NIST Interagency/Internal Report (NISTIR)

Pub Type

NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.IR.6605

Keywords

1, 1, 1, 2-tetrafluoroethane, correlation, data, IUPAC, R134a, round robin, thermal conductivity, transient hot wire

Citation

Perkins, R. , Laesecke, A. , Howley, J. , Ramires, M. , Gurova, A. and Cusco, L. (2000), Experimental Thermal Conductivity Values for the IUPAC Round-Robin Sample of 1,1,1,2-Tetrafluoroethane (R134a), NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.6605 (Accessed December 14, 2024)