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The Application of Risk-Informed Decision-Making Approach in Optimization of Allowed Outage Time for Safety System in Nuclear Power Plant

Authors :
Deng Wei
Licun Wu
Chao Ma
Source :
Volume 4: Nuclear Safety, Security, Non-Proliferation and Cyber Security; Risk Management.
Publication Year :
2017
Publisher :
American Society of Mechanical Engineers, 2017.

Abstract

To facilitate online maintenance for High Pressure Safety Injection (HPSI) system in nuclear power plant, the optimization measure for Allowed Outage Time (AOT) is proposed in this paper, and risk-Informed decision-making approach is used to demonstrate its feasibility. According to the analysis results, the extension of AOT meets the requirements of relative guides and deterministic analysis, and the impact on risk of plant is acceptable. Based on the extension of AOT, it is feasible to carry out online maintenance for safety system and corresponding support systems, which can effectively reduce workload during shutdown.

Details

Database :
OpenAIRE
Journal :
Volume 4: Nuclear Safety, Security, Non-Proliferation and Cyber Security; Risk Management
Accession number :
edsair.doi...........7dc62c456c6c5eec6b57874d95335eea