摘要
为了实现棒束通道中宽参数范围下偏离泡核沸腾(DNB)型和干涸(DO)型临界热流密度(CHF)的连续准确预测,采用棒束通道中的CHF分类准则和气泡湍流脉动下的过热液体层蒸干DNB型CHF机理模型,结合已经研究成熟的DO型CHF机理模型,建立了覆盖不同类型CHF的综合棒束CHF机理模型。采用中国核动力研究设计院(NPIC)的5×5全长棒束CHF实验数据对所建立的综合棒束CHF机理模型进行了验证,结果表明,综合棒束CHF机理模型所有的预测值/测量值(P/M)数据均匀地分布在1附近,最大相对偏差在±22%之内,说明开发的综合棒束CHF机理模型能够实现对棒束通道DNB型和DO型CHF的连续准确预测。
In order to continuously and accurately predict departure from nucleate boiling(DNB)and dry-out(DO)type critical heat flux(CHF)under wide parameter range for rod bundle channel,a comprehensive rod bundle CHF mechanism model covering different types of CHF based on the CHF classification criterion in the bundle channel and the mechanism model of DNB type CHF for evaporation of superheated liquid layer and combined with the mature DO type CHF mechanism model that has been studied.The 5×5 full-length rod bundle CHF experimental data of Nuclear Power Institute of China(NPIC)is used to verify the CHF mechanism model of the comprehensive rod bundle.The results show that all predicted value/measured value(P/M)data of the comprehensive rod bundle CHF mechanism model are evenly distributed around 1,and the maximum relative deviation is within ±22%,indicating that the developed comprehensive rod bundle CHF mechanism model can continuously and accurately predict the DNB and DO type CHF in rod bundle channel.
作者
刘伟
彭诗念
江光明
刘余
Liu Wei;Peng Shinian;Jiang Guangming;Liu Yu(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2021年第S02期77-81,共5页
Nuclear Power Engineering
