Tsunami Assessment for Risk Management at Nuclear Power Facilities in Japan

Author(s):  
Ken Yanagisawa ◽  
Fumihiko Imamura ◽  
Tsutomu Sakakiyama ◽  
Tadashi Annaka ◽  
Tomoyoshi Takeda ◽  
...  
2021 ◽  
Author(s):  
Yuhang Zhang ◽  
Zhijian Zhang ◽  
He Wang ◽  
Lixuan Zhang ◽  
Dabin Sun

Abstract To ensure nuclear safety and prevent or mitigate the consequences of accidents, many safety systems have been set up in nuclear power plants to limit the consequences of accidents. Even though technical specifications based on deterministic safety analysis are applied to avoid serious accidents, they are too poor to handle multi-device managements compared with configuration risk management which computes risks in nuclear power plants based on probabilistic safety assessment according to on-going configurations. In general, there are two methodologies employed in configuration risk management: living probabilistic safety assessment (LPSA) and risk monitor (RM). And average reliability databases during a time of interest are employed in living probabilistic safety assessment, which may be naturally applied to make long-term or regular management projects. While transient risk databases are involved in risk monitor to measure transient risks in nuclear power plants, which may be more appropriate to monitor the real-time risks in nuclear power plants and provide scientific real-time suggestions to operators compared with living probabilistic safety assessment. And this paper concentrates on the applications and developments of living probabilistic safety assessment and risk monitor which are the mainly foundation of the configuration risk management to manage nuclear power plants within safe threshold and avoid serious accidents.


Author(s):  
Philip Grossweiler ◽  
David Costello ◽  
Kevin Graham

Regulations governing the safety of drilling and offshore production operations have changed since the Macondo spill. This paper suggests management level perspectives on the nexus of human factors and safety management systems including an overview of ideas from: Congressional Testimony; the Bipartisan Policy Center inputs to the Presidents Commission on the Spill; the National Academy of Engineering and National Research Council Deepwater Horizon Report, and workshops and initiatives by RPSEA (Research Partnership to Secure Energy for America), SPE, and ASME. The value of benchmarks from risk management practices from the aviation, nuclear power, and financial community are also discussed. The paper will also consider questions as to what management might consider reducing risk and treating risk management as not just a cost center, but as a way to integrate safety management systems into improving corporate performance for all stakeholders. Paper published with permission.


Author(s):  
Lynn McClain ◽  
Art Smith ◽  
Patrick O’Regan

The nuclear power industry has been utilizing risk and performance based technologies for over thirty years. Applications of these technologies have included risk assessment (e.g. Individual Plant Examinations), burden reduction (e.g. Risk-Informed Inservice Inspection, RI-ISI) and risk management (Maintenance Rule, 10CFR50.65). Over the last five to ten years the number of risk-informed (RI) burden reduction initiatives has increased. Unfortunately, the efficiencies of some of these applications have been questionable. This paper investigates those attributes necessary to support successful, cost-effective RI-applications. The premise to this paper is that by understanding the key attributes that support one successful application, insights can be gleaned that will streamline/coordinate future RI-applications. This paper is an extension to a paper presented at the Pressure Vessel and Piping (PVP-2001) Conference. In that paper, a number issues and opportunities were identified that needed to be assessed in order to support future (and efficient) RI-applications. It was noted in the paper that a proper understanding and resolution of these issues will facilitate implementation of risk and performance technology in the operation, maintenance and design disciplines. In addition, it will provide the foundation necessary to support regulatory review and approval.


Sign in / Sign up

Export Citation Format

Share Document