原子能科学技术2018，Vol.52Issue(4)：617-621,5.DOI:10.7538/yzk.2017.youxian.0489
环形通道内再淹没过程先驱冷却传热特性研究
Precursory Cooling Heat Transfer Characteristic during Reflood Phase in Annular Channel
王金宇 1王均 1昝元锋 1黄军1
作者信息
- 1. 中国核动力研究设计院,四川 成都 610213
- 折叠
摘要
Abstract
Precursory cooling heat transfer has a key effect on quench front progressing velocity which is a symbol of core cooling efficiency during reflood phase. Therefore, the study on precursory cooling heat transfer characteristics is important. In the paper, the influences of initial wall temperature, inlet coolant temperature as well as inlet mass flow flux on precursory cooling heat transfer coefficients were investigated based on results of numerical method solving two-dimensional conduction equations and measured data from bottom reflood experiments in an annular channel. It is shown that precursory cooling heat transfer coefficients are independent on initial wall temperature, increase with the inlet mass flow flux, and decrease with the increase of distance from quench front. A heat transfer correlation of precursory cooling is obtained.关键词
再淹没/先驱冷却/传热特性Key words
reflood/precursory cooling/heat transfer characteristic分类
能源科技引用本文复制引用
王金宇,王均,昝元锋,黄军..环形通道内再淹没过程先驱冷却传热特性研究[J].原子能科学技术,2018,52(4):617-621,5.
