Research on mechanism of flow excursion in narrow rectangle channel under natural circulation

被引：7
|
作者：
Zhou Tao [1 ]
Hong Dexun [1 ]
Ran Ke [1 ]
Su Ziwei [1 ]
机构：
[1] N China Elect Power Univ, Inst Nucl Thermal Hydraul Safety & Standardizat, Beijing 102206, Peoples R China
来源：
NUCLEAR ENGINEERING AND DESIGN | 2013年 / 254卷
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/j.nucengdes.2012.08.016
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
By changing the heating power, flow excursion happens in the laboratory equipment of natural circulation. Meanwhile, there is a certain degree of local flow oscillations before the happening of flow excursion. Based on analyzing the mechanism of flow excursion, it comes to that the change of bubble and flow pattern has effect on flow excursion. At early stage, the impact of resistance on bubble is significantly greater than that of buoyancy; at later stage, the resistance equals to the buoyancy, flow excursion stops. Channel effect has important promotion to flow excursion. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：1 / 4
页数：4
相关论文
共 50 条
  • [31] Experimental research on natural circulation CHF in narrow rectangular channels
    Zhou T.
    Chen N.
    Yao Y.
    Xu P.
    Jiang Y.
    Chen J.
    Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University, 2024, 45 (05): : 894 - 901
  • [32] STUDY ON NATURAL CIRCULATION FLOW INSTABILITIES IN ROD BUNDLE CHANNEL UNDER ROLLING CONDITION
    Cheng, Kun
    Deng, Jian
    Cai, Rong
    Qian, Libo
    Qi, Peiyao
    Ke, Bingzheng
    PROCEEDINGS OF THE 2020 INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING (ICONE2020), VOL 3, 2020,
  • [33] Experimental and numerical study on single-phase flow characteristics of natural circulation system with heated narrow rectangular channel under rolling motion condition
    Yu, Shengzhi
    Wang, Jianjun
    Yan, Ming
    Yan, Changqi
    Cao, Xiaxin
    ANNALS OF NUCLEAR ENERGY, 2017, 103 : 97 - 113
  • [34] Mechanism of ONB based on nonequilibrium thermodynamics of natural circulation in narrow channels
    Zhou Tao
    Li Jingjing
    Liu Ping
    Sheng Cheng
    Huang Yanping
    Xiao Zejun
    NUCLEAR SCIENCE AND TECHNIQUES, 2013, 24 (06)
  • [35] Mechanism of ONB based on nonequilibrium thermodynamics of natural circulation in narrow channels
    ZHOU Tao
    LI Jingjing
    LIU Ping
    SHENG Cheng
    HUANG Yanping
    XIAO Zejun
    Nuclear Science and Techniques, 2013, 24 (06) : 125 - 134
  • [36] Analysis of characteristic curves for natural circulation flow excursion at low steam quality conditions
    Key Laboratory of Advanced Reactor Engineering and Safety, Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084, China
    Hedongli Gongcheng, 2006, SUPPL. 1 (47-52):
  • [37] Experimental and Numerical Research on Flow Characteristics of Centrifugal Pump under Natural Circulation Condition
    Li W.
    Yu L.
    Hao J.
    Li M.
    Hu G.
    Yuanzineng Kexue Jishu/Atomic Energy Science and Technology, 2019, 53 (11): : 2176 - 2182
  • [38] Research of supercritical water flow instability under natural circulation based on factorial analysis
    Li, Jingjing, 1600, Atomic Energy Press (35):
  • [39] Development of flow boiling mechanism model and its application to rectangular narrow channel under atmosphere pressure
    Zhang, Rui
    Du, Zhiyuan
    Ren, Tingting
    Shi, Jiangwu
    Cheng, Jie
    PROGRESS IN NUCLEAR ENERGY, 2022, 152
  • [40] Mechanism research of two-phase flow regimes during bottom reflooding in narrow rectangular channel
    Xu, Wei
    Deng, Yonghao
    Liu, Xiaojing
    Cheng, Xu
    Wu, Dan
    ANNALS OF NUCLEAR ENERGY, 2021, 151
12345