摘要
概述了严重事故下堆芯熔融物与混凝土相互作用(MCCI)过程的机理性模型,并给出了大亚湾核电厂全厂断电及大破口叠加安注失效等典型初因事故导致的严重事故下的MCCI过程的计算分析结果,并与相同事故序列下的MELCOR计算结果进行对比。计算结果表明,所给出的严重事故下的MCCI过程模型正确合理,计算速度快,能满足在模拟机上应用的要求。
A mechanistic model of the molten core-concrete interaction （MCCI） process was described ,and it was used to calculate and analyze the MCCI process of Daya Bay Nuclear Power Plant when the station blackout （SBO） accident ,or large loss of coolant accident （LLOCA） with the failure of safety injection was happened .The calculation results of this procedure were compared with the large-scale analysis program MELCOR to verify the reasonableness and correctness of the model .T he results indicate that the model presented in this paper can simulate the MCCI process correctly and reasonably under the given severe accidents ,and the calculation speed is fast .It can meet the appli-cation requirements of simulators .
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2014年第5期849-853,共5页
Atomic Energy Science and Technology
基金
国家科技重大专项资助项目(2011ZX06004-008)
