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Influence of porous coatings on heat transfer in superfluid helium

✍ Scribed by Yanzhong Li; Yuyuan Wu; Ingrid Arend; Klaus Lüders; Udo Ruppert

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
583 KB
Volume
34
Category
Article
ISSN
0011-2275

No coin nor oath required. For personal study only.

✦ Synopsis

Different types of porous materials as surface coatings on samples (RhFe wire) are investigated at Hells and HeIIp in respect to their influences on the heat transfer. Experimental results of measurements on samples with and without coatings are presented. Wires covered with capillary filter plates as well as a mixture of gypsum and alumina abrasive show higher (up to 3.5 times) peak and recovery heat flux densities than those of the comparable bare wire at Hells. They show an increasing tendency of heat flux density with decreasing bath temperature at Hells similar to those at Hellp. A discussion of the results is also given in the' paper.

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