Measurements of Hydrogen Thermal Conductivity at High Pressure and High Temperature

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Title Measurements of Hydrogen Thermal Conductivity at High Pressure and High Temperature
Author Moroe, S.; Woodfield, Peter; Kimura, K.; Kohno, M.; Fukai, J.; Fujii, M.; Shinzato, K.; Takata, Y.
Journal Name International Journal of Thermophysics
Year Published 2011
Place of publication United States
Publisher Springer
Abstract The thermal conductivity for normal hydrogen gas was measured in the range of temperatures from 323 K to 773 K at pressures up to 99 MPa using the transient short hot-wire method. The single-wire platinum probes had wire lengths of 10 mm to 15 mm with a nominal diameter of 10 μm. The volume-averaged transient temperature rise of the wire was calculated using a two-dimensional numerical solution to the unsteady heat conduction equation. A non-linear least-squares fitting procedure was employed to obtain the values of the thermal conductivity required for agreement between themeasured temperature rise and the calculation. The experimental uncertainty in the thermal-conductivity measurements was estimated to be 2.2 % (k = 2). An existing thermal-conductivity equation of state was modified to include the expanded range of conditions covered in the present study. The new correlation is applicable from 78 K to 773 K with pressures to 100 MPa and is in agreement with the majority of the present thermal-conductivity measurements within ±2 %.
Peer Reviewed Yes
Published Yes
Alternative URI
Volume 32
Page from 1887
Page to 1917
ISSN 1572-9567
Date Accessioned 2011-11-28; 2012-02-15T04:53:24Z
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Mechanical Engineering
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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