scholarly journals Integrated Defense-in Depth (DiD) Risk Analysis System for Safety Operation of Nuclear Power Plants

2018 ◽  
Vol 51 (24) ◽  
pp. 1364-1367
Author(s):  
Yuxin Zhang ◽  
LU Hongxing ◽  
Ming Yang ◽  
Hidekazu Yoshikawa
Keyword(s):  
Risk Analysis ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Defense In Depth ◽  
Analysis System ◽  
Safety Operation

Fire Risk Analysis for Nuclear Power Plants: Methodological Developments and Applications

Risk Analysis ◽  
1985 ◽  
Vol 5 (1) ◽  
pp. 33-51 ◽  
Author(s):  
Mardyros Kazarians ◽  
Nathan O. Siu ◽  
George Apostolakis
Keyword(s):  
Risk Analysis ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Fire Risk ◽  
Fire Risk Analysis

Data Flow Based Cyber Security Defense-in-Depth Model of I&C System for Nuclear Power Plants

2017 ◽  
Author(s):  
Bing Hu ◽  
Longqiang Zhang ◽  
Zhiwu Guo ◽  
Youran Li ◽  
Wei Sun ◽  
...  
Keyword(s):  
Cyber Security ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Data Flow ◽  
Security Threat ◽  
Technical Requirements ◽  
Digital Instrumentation ◽  
Defense In Depth ◽  
Security Standards

With the introduction of digital instrumentation system, the cyber security threat to nuclear power plants is becoming more and more serious. The existing cyber security standards of nuclear power plants still need to be improved, and the technology practice of defensive strategies is lacking all over the world. In this paper, based on the comparison of domestic and foreign regulations and standards, combined with the technical practice of I&C system overall plan, a defense-in-depth model based on data flow is proposed. The overall technical requirements, hierarchy, network model, cyber security basic requirements, cyber security interface and protection of digital assets are introduced, the application of the model and the direction of research on cyber security of nuclear power plant are prospected.

A Methodology for Seismic Risk Analysis of Nuclear Power Plants

Risk Analysis ◽  
1983 ◽  
Vol 3 (3) ◽  
pp. 169-180 ◽  
Author(s):  
Stan Kaplan ◽  
Harold F. Perla ◽  
Dennis C. Bley
Keyword(s):  
Risk Analysis ◽  
Seismic Risk ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Seismic Risk Analysis

Application Investigation of the Elastomer Damper in Nuclear Power Plants

2014 ◽  
Vol 488-489 ◽  
pp. 1189-1192
Author(s):  
Jiu Hong Jia ◽  
Han Wei Wu ◽  
Hong Xing Hua
Keyword(s):  
Numerical Analysis ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Shock Test ◽  
Recoil Force ◽  
Vibration Protection ◽  
Shock Mitigation ◽  
Comparison Results ◽  
Safety Operation

Vibration protection of the piping in nuclear power plants (NPPs) is critical for safety operation of NPPs. In order to improve the anti-shock ability of pipes in NPPs, the application feasibility of the elastomer damper in piping protection is investigated. The numerical analysis and the shock test are utilized to compare performances between the elastomer damper and the hydraulic oil damper, which is widely utilized in NPPs currently. The comparison results prove that the recoil force of the elastomer damper to the system is smaller. Moreover, the shock mitigation process of the elastomer damper is more smoothly. Therefore, the performance characteristics of the elastomer damper can well meet the requirements of vibration protection for pipes in NPPs. It can be used in NPPs in the future.

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