Experimental Study of Single-Phase Heat Transfer Characteristics in a Narrow Rectangular Channel with Vertical Upward Flow

被引：0

作者：

Song M. ^{[1
]}

Ma J. ^{[1
,2
]}

Huang Y. ^{[2
]}

He Z. ^{[1
]}

Tian H. ^{[1
]}

Zhang Y. ^{[1
]}

Zhou Y. ^{[1
]}

机构：

[1] Technology Development and Support Division Nuclear Service, Nuclear Power Institute of China, Chengdu

[2] CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu

来源：

| 1600年 / Atomic Energy Press卷 / 41期

关键词：

Narrow gap rectangular channel; Single-phase heat transfer characteristics; Vertical upward flow;

D O I：

10.13832/j.jnpe.2020.S2.0159

中图分类号：

TK1 [热力工程、热机];

学科分类号：

080702 ;

摘要：

In this paper, a vertical upward narrow gap rectangular channel is taken as the research object, and a single-phase heat transfer characteristics of constant heat flux density of heating conditions is experimentally studied. According to the measured temperature, flow rate, pressure drop and heat flux density, the experimental data of average Nusselt numbers covering laminar, transitional and turbulent flows in a certain range of working conditions are obtained, and the existing prediction correlations was compared with the experimental data obtained in this experimental study. The result shows that the relationships raised by Shah and London, Dittus-Boelter and Gnielinski have a good agreement with the experimental data. These data can provide comparison base for the study of the non-isothermal heat transfer characteristics under the motion condition. © 2020, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.

引用

页码：159 / 162

页数：3

共 3 条

[1] SHAH R K, LONDON A L., Advances in heat transfer: Laminar flow forced convection in ducts, (1978)
[2] DITTUS P W, BOELTER L M K., Heat transfer in automobile radiators of tubular pipe, International Communications in Heat and Mass, 12, pp. 3-22, (1985)
[3] GNIELINSKI V., New equations for heat and mass transfer in turbulent pipe and channel flow, International Chemical Engineering, 16, 2, pp. 359-368, (1976)

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