Thermal conductivity of nitrogen in the temperature range 177 to 270 K

The thermal conductivity of nitrogen and argon between 170 and 300 K at pressures up to 10 MPa has been measured by the transient hot-wire technique. The accuracy of the reported values is estimated to be one of ±0.3%. The zero-density values for argon serve to confirm the estimated accuracy of the...

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Bibliographic Details
Published in:Physica A 1989-08, Vol.159 (1), p.28-43
Main Authors: Millat, J., Ross, M.J., Wakeham, W.A.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Physics
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Summary:The thermal conductivity of nitrogen and argon between 170 and 300 K at pressures up to 10 MPa has been measured by the transient hot-wire technique. The accuracy of the reported values is estimated to be one of ±0.3%. The zero-density values for argon serve to confirm the estimated accuracy of the data by direct comparison with theoretical calculations using the most modern intermolecular potential and by indirect comparison with available viscosity data. For nitrogen the corresponding data have been analysed in such a way as to produce a consistent set of effective cross-sections for the molecule which complement those obtained at higher temperatures. The effects of inelastic collisions on the transport properties are much less marked than for carbon dioxide.
ISSN:0378-4371
1873-2119
DOI:10.1016/0378-4371(89)90146-5