Common Cause Failure Analysis of RHRS at PWR Based on GO-FLOW Methodology
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摘要: 应用GO-FLOW方法对压水反应堆中的余热排出系统在启动和运行过程中的系统可靠性进行分析,并在此基础上应用β因子模型、多希腊字母模型和α因子模型分析共因失效对余热排出系统可靠性的影响。结果表明,共因失效对余热排出系统可靠性有很大影响。Abstract: In this paper,GO-FLOW method is applied to analyze the reliability of residual heat removal system at pressurized water reactor NPPs.The contribution to system unavailability caused by common cause failures is further calculated with β model,MGL model and α model.The results show that common cause failure has a significant effect on system reliability and GO-FLOW method can be effectively applied to system reliability analysis with common cause failures.
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Key words:
- System reliability /
- Common cause failure /
- GO-FLOW /
- NPPs
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