Correlation of the Thermal Conductivity of Normal and Parahydrogen from the Triple Point to 1000 K and up to 100 MPa

Published

July 26, 2011

Author(s)

Marc J. Assael, John-Alexander Assael, Marcia L. Huber, Richard A. Perkins, Yasayuki Takata

Abstract

The paper contains new, representative equations for the thermal conductivity of normal and parahydrogen. 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. Although there are a sufficiently large number of data at normal temperatures, data at very low or very high temperatures as well as near the critical region are scarce. In the case of the zero-density thermal conductivity, a new theoretically based correlation was adopted, as it agreed very well with the existing data. Moreover in the critical region, the experimentally observed enhancement of the thermal conductivity is well represented by theoretically based equations containing just one adjustable parameter. The correlations are applicable for the temperature range from the triple point to 1000 K and pressures up to 100 MPa for normal hydrogen and parahydrogen.

Citation

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

Volume

40

Issue

3

NIST Pub Series

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

Pub Type

NIST Pubs

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Keywords

hydrogen, critical phenomena, parahydrogen, thermal conductivity, transport properties

Citation

Assael, M. , Assael, J. , Huber, M. , Perkins, R. and Takata, Y. (2011), Correlation of the Thermal Conductivity of Normal and Parahydrogen from the Triple Point to 1000 K and up to 100 MPa, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=907928 (Accessed October 8, 2025)