Steady State Heat Transport in a Channel Containing He II at High Pressures up to 1.5 MPa
- TML, National Institute for Materials Science, Tsukuba, Ibaraki, 305-0003 (Japan)
- Taiyo Toyo Sanso Co., Ltd., Chuo-ku, Tokyo, 104-0031 (Japan)
Steady state heat transport through He II in wide channels of 6 and 10 mm i.d. was investigated up to 1.5 MPa. The relationship between temperature gradient along the channel and heat flux was measured at the temperature range between 1.4 K and 2.1 K. The measured data were analyzed to get the most proper m-value that theory indicates should be equal to 3. A thermal conductivity function was determined as a fitting line by using the method of least squares. Experimental data deviation from the fitting line have the minimum when m is approximately 3.4 for all the pressures. A series of the thermal conductivity function was determined assuming m = 3.4. The result has a good agreement with the Bon Mardion's heat conductivity function for 0.1 MPa analyzed assuming m = 3.4.
- OSTI ID:
- 20653200
- Journal Information:
- AIP Conference Proceedings, Vol. 710, Issue 1; Conference: CEC 2003: Cryogenic engineering and international cryogenic materials conference on advances in cryogenic engineering, Anchorage, AK (United States), 22-26 Sep 2003; Other Information: DOI: 10.1063/1.1774782; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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