Reference Correlation of the Thermal Conductivity of Cyclohexane from the triple point to 640 K and up to 175 MPa

Published

February 8, 2017

Author(s)

A. Koutian, Marc J. Assael, Marcia L. Huber, Richard A. Perkins

Abstract

New, wide-range reference equations for the thermal conductivity of cyclohexane as a function of temperature and density are presented. The equations are based in part upon a body of experimental data that has been critically assessed for internal consistency and for agreement with theory whenever possible. We estimate the uncertainty (at the 95% confidence level) for the thermal conductivity of cyclohexane from the triple point (279.86 K) to 650 K at pressures up to 175 MPa to be 4% for the compressed liquid and supercritical phases. For the low-pressure gas phase (up to 0.1 MPa) over the temperature range 280 K to 680 K, the estimated uncertainty is 2.5%. Uncertainties in the critical region are much larger, since the thermal conductivity approaches infinity at the critical point and is very sensitive to small changes in density.

Citation

J. Phys. & Chem. Ref. Data (JPCRD) -

Volume

46

Issue

1

NIST Pub Series

J. Phys. & Chem. Ref. Data (JPCRD)

Pub Type

NIST Pubs

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DOI Link

Keywords

critical phenomena, cyclohexane, reference correlations, thermal conductivity, transport properties.

Citation

Koutian, A. , Assael, M. , Huber, M. and Perkins, R. (2017), Reference Correlation of the Thermal Conductivity of Cyclohexane from the triple point to 640 K and up to 175 MPa, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.1063/1.4974325 (Accessed September 13, 2024)