Kapitza conductance of aluminium and heat transport through subcooled He II

✍ Scribed by S.W. Van Sciver

• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 618 KB
• Volume: 18
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(78)90152-2

✦ Synopsis

Heat transport measurements in a large diameter tube containing He II are reported. The range of temperatures investigated are from 1.7K to 2. 1K with applied pressures up to the critical pressure, 0.23MPa. Temperature gradients established in the liquid are compared with previous experimental work and the theory of mutual friction. The Gorter-Mellink mutual friction constant, A, is observed to increase with applied pressure. A t 2.01 K, a O. 1 MPa increase in pressure results in a 13.5 +-4% enhancement of A. The results are used to predict the pressure and temperature dependence of the peak heat flux. Simultaneous measurements of the surface heat transfer from high purity aluminum to He II are reported. Kapitza conductance, film boiling and recovery heat flux data are analyzed and compared to other results on similar systems. A correlation is observed between the recovery heat flux and the film boiling heat transfer coefficient.