CAJ | 학술논문

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 M ELCOR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。
개술료엄중사고하퇴심용융물여혼응토상호작용（MCCI）과정적궤이성모형，병급출료대아만핵전엄전엄단전급대파구첩가안주실효등전형초인사고도치적엄중사고하적MCCI과정적계산분석결과，병여상동사고서렬하적 M ELCOR계산결과진행대비。계산결과표명，소급출적엄중사고하적MCCI과정모형정학합리，계산속도쾌，능만족재모의궤상응용적요구。
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 .