Investigation of heat transfer from inclined flat surface to aqueous foam

被引：12

作者：

Gylys, J. ^{[1
,3
]}

Zdankus, T. ^{[2
,3
]}

Gylys, M. ^{[1
,3
]}

机构：

[1] Kaunas Univ Technol, Inst Energy Technol, LT-44239 Kaunas, Lithuania

[2] Kaunas Univ Technol, Dept Geotech Engn, LT-51367 Kaunas, Lithuania

[3] Kaunas Univ Technol, Dept Thermal & Nucl Energy, LT-44239 Kaunas, Lithuania

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2013年 / 59卷

关键词：

Aqueous foam; Foam flow; Heat transfer; Inclined flat surface; Film of drainage liquid; TUBE BUNDLE; RHEOLOGY;

D O I：

10.1016/j.ijheatmasstransfer.2012.12.026

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A lot of heat transfer surfaces have inclined orientation. The influence of an inclination on the intensity of heat transfer process is more significant in the case of two-phase coolants. Process of inclined flat surface cooling by aqueous foam flow has some peculiarities, such like drainage liquid film on the heated surface, differences in void fraction across and along foam flow and etc. All those factors make the heat transfer process more complicated in comparison with the single phase cooling. Main task of this work is to define the peculiarities of heat transfer between inclined flat surface and the aqueous foam flow. The relationship between drainage liquid film's parameters, such like thickness of the film and the velocity of the liquid in the film, the rate of foam flow and volumetric void fraction is analysed. The analytical equations for the heat transfer process calculation are presented. Comparison with the results of the experimental investigation showed a good agreement. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：272 / 278

页数：7

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