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Development of a leading simulator/trailing simulator methodology as part of an integrated safety-security analysis for nuclear power plants

Author

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  • Brian Cohn
  • Todd Noel
  • Douglas Osborn
  • Tunc Aldemir

Abstract

Nuclear power plant (NPP) risk assessment is broadly separated into disciplines of nuclear safety, security, and safeguards. Different analysis methods and computer models have been constructed to analyze each of these as separate disciplines. However, due to the complexity of NPP systems, there are risks that can span all these disciplines and require consideration of safety-security (2S) interactions which allows a more complete understanding of the relationship among these risks. A novel leading simulator/trailing simulator (LS/TS) method is introduced to integrate multiple generic safety and security computer models into a single, holistic 2S analysis. A case study is performed using this novel method to determine its effectiveness. The case study shows that the LS/TS method avoided introducing errors in simulation, compared to the same scenario performed without the LS/TS method. A second case study is then used to illustrate an integrated 2S analysis which shows that different levels of damage to vital equipment from sabotage at a NPP can affect accident evolution by several hours.

Suggested Citation

  • Brian Cohn & Todd Noel & Douglas Osborn & Tunc Aldemir, 2024. "Development of a leading simulator/trailing simulator methodology as part of an integrated safety-security analysis for nuclear power plants," Journal of Risk and Reliability, , vol. 238(4), pages 889-900, August.
  • Handle: RePEc:sae:risrel:v:238:y:2024:i:4:p:889-900
    DOI: 10.1177/1748006X221091048
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