摘要
为研究核电厂中ADS-4卸压夹带过程,以AP1000核电厂为原型设计建造了ADS-4喷放卸压试验回路ADETEL。用高速摄像仪拍摄夹带起始和夹带率的试验过程,将试验数据与现有试验数据和模型进行对比。结果表明:ADETEL试验数据和其他试验数据及理论模型之间存在较大差异;RELAP5和ATLATS的夹带率模型不能准确估算AP1000核电厂中的ADS-4夹带量;当热管段内液位较低时,夹带量会随热管段内液位降低而迅速减小;夹带起始在小支管-主管直径比(d/D)工况下更容易发生;在相同的热管段相对液位下,AP1000中ADS-4支管内液体的夹带率较AP600的低。
The ADS-4 depressurization and entrainment test loop （ADETEL） scaled with AP1000 as the prototype was constructed to investigate the entrainment process at the ADS-4 tee branch line. The experimental phenomenon of the onset of entrainment and the entrainment rate were recorded by a high speed camera. The data were obtained and compared with the existing data and correlations. The results show that large dis- crepancy between ADETEL experimental data and available data exists. RELAP5 and ATLATS correlations can not estimate the entrainment quality in AP1000 accurately. The entrainment rate declines rapidly with the decrease of liquid level in hot leg when the liquid level is low. The onset of entrainment is more likely to happen in smaller d/D （diameter ratio of branch to hot leg） conditions. The ADS-4 entrainment rate in AP1000 is lower than that in AP600 at the same dimensionless hot leg liquid level.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2015年第8期1380-1385,共6页
Atomic Energy Science and Technology
基金
大型先进压水堆核电站重大专项资助项目(2011ZX06004-007)
关键词
可视化试验
ADS-4
夹带率
夹带起始
isualization experiment
ADS-4
entrainment rate
onset of entrainment
