Assael, M.
, Sotiriadou, S.
, Thol, M.
and Huber, M.
(2026),
Reference Correlation of the Thermal Conductivity of Neon, International Journal of Thermophysics, [online], https://doi.org/10.1007/s10765-026-03782-y, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=961954 (Accessed July 1, 2026)
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Reference Correlation of the Thermal Conductivity of Neon
Published
Author(s)
Marc Assael, Sofia Sotiriadou, Monika Thol,
Abstract
A new wide-ranging correlation for the thermal conductivity of neon, based on the most recent ab-initio dilute gas theoretical calculations, a simplified crossover critical enhancement contribution, and critically evaluated experimental data, is presented. The correlation is designed to be used with a high-accuracy Helmholtz equation of state over the range of temperatures from 24.5561 K (the triple-point temperature) to 700 K and at pressures up to 700 MPa. The model includes a zero-density correlation based on recent ab-initio values, valid from 5 K to 5000 K with an expanded uncertainty (k=2) ranging from 0.15% at the triple-point temperature to 0.028% at 5000 K. In the range 94 K to 463 K and up to 40 MPa, the estimated uncertainty of the full correlation (as indicated by comparisons with the most accurate measurements) is 1.5%, while in the liquid phase, 25 K to 29 K, the estimated expanded uncertainty rises to 10%. The correlation behaves in a physically reasonable manner when extrapolated to temperatures below the triple point and is suitable for use in certain corresponding-states applications. However, care should be taken when using the correlation outside of the experimentally validated range.Citation
International Journal of Thermophysics
Volume
47
Pub Type
Journals
Download Paper
Keywords
neon, thermal conductivity, transport properties
Citation
Issues
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Created June 30, 2026