J. Cavaluzzi, C. Gilmore, B. Khan, M. H. Tran ,
"Probability of the Loss of Offsite Power and Damage to Road Network Due to a Rare Event,"
Proceedings of the 2012 20th International Conference on Nuclear Engineering collocated with the ASME 2012 Power Conference ICONE20-POWER2012, Anaheim, California, July 30 - August 3, 2012.
The main goal of the project was to better understand the impact
to a nuclear power plant due to the unavailability of critical
infrastructure. We evaluated the use of rare event analysis to
establish rare event occurrences in the vicinity of the plant. For
the purpose of this report, rare events were considered extreme
scenarios of natural disasters. The initial data was acquired by
viewing STP FSARs and topographical maps of the region. The two
specific factors that were extracted by analyzing the initial data
of the plant design and location were the road networks and the
electrical grid system. These two variables were then analyzed in
light of the rare event analysis model that was used as a building
block for this project. The rare event analysis also provided
information regarding the types of data and distributions that were
likely to be seen as a result. For the road networks, the road
layout around the plant was mapped and the relevant data was used
to consider the possible routes to the plants in case of a rare
event. Data regarding LOOP Events were gathered mainly from NRC
Documents and Institutional Sources. These data were used to
analyze how many events occurred per year and the downtime
associated with the rare event.
Associated Project(s):Improved Safety Margin Characterization of Risk from Loss of Offsite Power