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ISSN 打印: 1064-2285
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传热学

DOI: 10.1615/HeatTransRes.v33.i1-2.60
5 pages

Enhancement of Heat Transfer in Vertical Openended Channels in Natural Convection of Gas

Yu. F. Gortyshov
A. N. Tupolev Kazan State Technical University, Kazan, Russia
Igor A. Popov
Tupolev Kazan National Research Technical University – Kazan Aviation Institute, 10 K. Marx Str., Kazan, Tatarstan, 420015, Russia
V. V. Olimpiev
Kazan State Power Engineering Institute, Kazan, Russia
B. B. Kostylev
A. N. Tupolev Kazan State Technical University, Kazan, Russia

ABSTRACT

In this paper we present results of experimental study of hydrodynamics and heat exchange in vertical open-ended cylindrical empty and intensified channels with natural convection of gas (self-draught). The boundaries of the regimes of flow are revealed and the results of generalizations of heat transfer are given. The expediency of natural convection heat exchange enhancement with laminar regime of flow is shown.


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