The influence of three-dimensional capillary-porous coatings on heat transfer at liquid boiling

被引：0
|
作者：
A. S. Surtaev
A. N. Pavlenko
V. I. Kalita
D. V. Kuznetsov
D. I. Komlev
A. A. Radyuk
A. Yu. Ivannikov
机构：
[1] Russian Academy of Sciences,Kutateladze Institute of Thermophysics, Siberian Branch
[2] Russian Academy of Sciences,Baikov Institute of Metallurgy and Materials Science
来源：
Technical Physics Letters | 2016年 / 42卷
关键词：
Heat Transfer; Heat Transfer Coefficient; Heat Transfer Rate; Technical Physic Letter; Heat Flux Density;
D O I：
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学科分类号：
摘要：
The process of heat transfer at pool boiling of liquid (Freon R21) on tubes with three-dimensional plasma-deposited capillary-porous coatings of various thicknesses has been experimentally studied. Comparative analysis of experimental data showed that the heat transfer coefficient for a heater tube with a 500-μm-thick porous coating is more than twice as large as that in liquid boiling on an otherwise similar uncoated tube. At the same time, no intensification of heat exchange in the regime of bubble boiling is observed on a tube with a 100-μm-thick porous coating.
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页码：391 / 394
页数：3
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