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

Journal Article · · Proceedings of the Institution of Mechanical Engineers. Part O, Journal of Risk and Reliability
 [1];  [2];  [2];  [3]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); The Ohio State Univ., Columbus, OH (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. The Ohio State Univ., Columbus, OH (United States)
+ Show Author Affiliations

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. In this work, 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.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003525
OSTI ID:
1882894
Report Number(s):
SAND--2022-2453J; 703829
Journal Information:
Proceedings of the Institution of Mechanical Engineers. Part O, Journal of Risk and Reliability, Journal Name: Proceedings of the Institution of Mechanical Engineers. Part O, Journal of Risk and Reliability Journal Issue: 4 Vol. 238; ISSN 1748-006X
Publisher:
SAGECopyright Statement
Country of Publication:
United States
Language:
English

References (11)

A survey of dynamic methodologies for probabilistic safety assessment of nuclear power plants journal February 2013
Nuclear safety and nuclear security synergy journal October 2013
Safety, security and safeguard journal January 2015
Dynamic generation of accident progression event trees journal December 2008
Cognitive modeling and dynamic probabilistic simulation of operating crew response to complex system accidents journal August 2007
Some Limitations of “Risk = Threat × Vulnerability × Consequence” for Risk Analysis of Terrorist Attacks journal December 2008
Improving Risk-Based Decision Making for Terrorism Applications journal March 2009
How Probabilistic Risk Assessment Can Mislead Terrorism Risk Analysts: How PRA Can Mislead Terrorism Risk Analysts journal September 2010
Where nuclear safety and security meet journal March 2012
MCDET: A Probabilistic Dynamics Method Combining M onte C arlo Simulation with the Discrete D ynamic E vent T ree Approach journal June 2006
Safety, Security, and Safeguards by Design: An Industrial Approach journal July 2012

Figures / Tables (12)

Figure 1(p. 7)figure Figure 1
Figure 2(p. 8)figure Figure 2
Figure 3(p. 10)figure Figure 3
Table 1(p. 11)table Table 1
Figure 4(p. 12)figure Figure 4
Figure 5(p. 13)figure Figure 5
Table 2(p. 14)table Table 2
Figure 6(p. 15)figure Figure 6
Table 3(p. 15)table Table 3
Table 4(p. 16)table Table 4
Table 5(p. 16)table Table 5
Table 6(p. 17)table Table 6

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modeling/simulation
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safety analysis
security analysis
system simulation