秦山核电厂主蒸汽管道破裂事故的RELAP5/MOD2分析

MAIN STEAM LINE BREAK (MSLB) ACCIDENT ANALYSIS FOR QINSHAN NUCLEAR POWER PLANT (QNPP) WITH RELAP5/MOD2

摘要: 通过使用RELAP5/MOD2程序对秦山核电厂主蒸汽管道破裂事故的计算,对该程序的临界流模型和传热模型进行分析,并与其它大型热工水力分析程序的计算结果及实验结果进行比较。在计算过程中,对RELAP5/MOD2程序汽水分离器模型的使用进行修正,使之符合核电厂安全评审计算的要求。

Abstract: In the paper, the analysis results for the QNPP MSLB accident with RELAP5/MOD2 are present-ed, and the critical flow model and heat transfer model in the RELAP5/MOD2 are analyzed and com-pared with both the thermohydraulic computer code and the experimental results. Finally, the modifica-tion for the moisture separator model in RELAP5/MOD2 is given.