Thermal Conductivity Measurement of Hydrogen at High Pressure and High Temperature

2011 ◽  
Author(s):  
Koichi Kimura ◽  
Shogo Moroe ◽  
Peter Woodfield ◽  
Jun Fukai ◽  
Kan’ei Shinzato ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
Pressure Range ◽  
Conductivity Measurement ◽  
Good Reproducibility ◽  
Hot Wire ◽  
Wire Method ◽  
Transient Short Hot Wire ◽  
Thermal Diffusivities ◽  
Thermal Conductivities

The thermal conductivities and thermal diffusivities of hydrogen were measured with a transient short hot wire method for temperature range up to 300 °C and pressure range up to 100MPa. The measured thermal conductivities showed good reproducibility and agreed with the existing values within a deviation of ±2%.

Thermal Conductivity Measurement of Gases by the Transient Short-Hot-Wire Method

2011 ◽  
Vol 24 (2) ◽  
pp. 168-178 ◽  
Author(s):  
S. Moroe ◽  
P. L. Woodfield ◽  
J. Fukai ◽  
K. Shinzato ◽  
M. Kohno ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Conductivity Measurement ◽  
Thermal Conductivity Measurement ◽  
Hot Wire ◽  
Wire Method ◽  
Transient Short Hot Wire

THE THERMAL CONDUCTIVITY OF DEUTERIUM

1935 ◽  
Vol 12 (3) ◽  
pp. 372-376 ◽  
Author(s):  
A. B. Van Cleave ◽  
O. Maass
Keyword(s):  
Thermal Conductivity ◽  
Hydrogen Molecule ◽  
Hydrogen Isotopes ◽  
Hot Wire ◽  
Wire Method ◽  
Deuterium Molecule ◽  
Thermal Conductivities

The thermal conductivities of deuterium and some mixtures of deuterium and hydrogen have been measured by a relative, "hot wire" method. The results are consistent with the authors' original conclusion that the deuterium molecule has the same molecular diameter as the hydrogen molecule. It follows also that the molecular heats of the hydrogen isotopes are the same.

Measurement of Effective Thermal Conductivity of CNT-Nanofluids by Transient Short-Wire Method

2009 ◽  
Author(s):  
Masamichi Kohno ◽  
Koichi Kimura ◽  
Shogo Moroe ◽  
Yasuyuki Takata ◽  
Peter L. Woodfield ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Diffusivity ◽  
Effective Thermal Conductivity ◽  
Volume Fraction ◽  
Hot Wire ◽  
Wire Method ◽  
Different Shapes ◽  
Transient Short Hot Wire ◽  
Al2o3 Particles ◽  
Particle Shapes

Thermal conductivity and thermal diffusivity of CNT-nanofluids and Al2O3-nanofulids were measured by the transient short-hot-wire method. The uncertainty of their measurements is estimated to be within 1% for the thermal conductivity and 5% for the thermal diffusivity. Three different shapes of Al2O3 particles were prepared for Al2O3–water nanofluids. For the thermal conductivity of Al2O3-water nanofluids, there are differences in the enhancement of thermal conductivity for differences in particle shapes. Hardly any enhancement of thermal conductivity was observed for SWCNT-water nanofluids because the volume fraction of SWCNT was extremely low. However, we consider by increasing the volume fraction of SWCNTs, it will be possible to enhance the thermal conductivity.

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