Numerical Study on Flow and Heat Transfer of High-pressure Sub-cooled Water Injection into High-temperature Lead-bismuth Alloy under Lead-bismuth Cooled Fast Reactor SGTR Accident

被引：0
|
作者：
Liu L. [1 ]
Yuan J. [1 ]
Gu H. [1 ]
Bao R. [1 ]
Liu M. [1 ]
Wang K. [2 ]
机构：
[1] School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai
[2] College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2023年 / 44卷 / 04期
关键词：
Jet boiling; Lead-bismuth cooled fast reactor; SGTR accident; Water/steam-LBE;
D O I：
10.13832/j.jnpe.2023.04.0055
中图分类号：
学科分类号：
摘要：
There are high-pressure sub-cooled water and high-temperature lead-bismuth coolant on both sides of the heat transfer tube of the steam generator in the lead-bismuth fast reactor. The large pressure difference and temperature difference on both sides of the heat transfer tube and the corrosion effect of Lead-bismuth eutectic (LBE) may cause the steam generator heat transfer tube rupture (SGTR) accident. It is of great academic significance and engineering application value to deeply study the characteristics of jet boiling and phase change product steam diffusion of high-pressure sub-cooled water impacting LBE after the accident. In order to reveal the heat and mass transfer mechanism of the interaction between LBE and water under accident conditions, this paper establishes a three-dimensional numerical calculation model of water/steam-liquid lead-bismuth multiphase flow and heat transfer based on the volume of fluid (VOF) method, combined with LES turbulence model and Lee phase change model. The phase change and heat transfer process occurred during the high-pressure sub-cooled water injection into the high-temperature LBE is systematically studied. Combined with the factors such as injection pressure and sub-cooled water temperature, the effects of different conditions on the jet shape, migration depth and boiling behavior during the jet boiling process are analyzed. The research results can provide guidance for the prediction of core safety under SGTR accident conditions. © 2023 Yuan Zi Neng Chuban She. All rights reserved.
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页码：55 / 64
页数：9
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