CPR1000全厂断电事故瞬态特性分析

Transient Analyses of Station Blackout Accident for CPR1000

用RELAP5/MOD3.4程序对CPR1000压水堆一回路系统进行整体建模,分析全厂断电事故下一回路主要参数的瞬态热工水力特性,并将RELAP5模型计算结果与THEMIS程序的计算结果进行对比,二者符合得较好。计算结果表明:该模型可较准确地模拟CPR1000在事故下的热工水力特性。

The primary loop of CPR1000 nuclear power plant was modeled using RELAP5/MOD3.4 code,and the transient thermal hydraulic characteristics were analyzed under the condition of station blackout accident（SBO）.The calculation results by RELAP5 code were compared with those of THEMIS code,and the results by RELAP5 code were consistent with those of THEMIS code.The results show that the RELAP5 model can accurately simulate the transient thermal hydraulic characteristics of CPR1000 under the condition of SBO.