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Heat Transfer Research
インパクトファクター: 0.404 5年インパクトファクター: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN 印刷: 1064-2285
ISSN オンライン: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v31.i1-2.150
pages 64-67

Heat Removal Augmentation in Steam Generating Channels with Swirled and Transit Flows

E. A. Boltenko
Elektrogorsk Scientific Research Center of Safety of Nuclear Power Stations, Elektrogorsk, Russia

要約

The paper presents the results of investigations of the effect of flow swirling and of the combined effect of swirling and transit flow on the heat removal rate and critical heat flux (CHF) in steam generating channels of annular type. It is established that a significant reduction in CHF and in the rate of heat removal occurs on convex heat transfer surfaces. Using swirled and transit flows allows one to considerably enhance the heat removal rate and CHF on convex heat transfer surfaces. Pressure losses and heat removal rate are shown to be dependent on the swirled-to-transit flow ratio. With an optimal relation between these flows it is possible to develop and construct highly efficient steam generating devices in which pressure losses differ only slightly from those in smooth channels.


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