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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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The Department of Energy’s National Nuclear Security Administration has awarded BWX Technologies a contract valued at $1.5 billion to build a Domestic Uranium Enrichment Centrifuge Experiment (DUECE) pilot plant in Tennessee in support of the administration’s efforts to build out a domestic supply of unobligated enriched uranium for defense-related nuclear fuel.
18th International Probabilistic Safety Assessment and Analysis (PSA 2023)
Workshop
Sunday, July 16, 2023|12:00–5:00PM EDT|Marriott Knoxville Downtown
Max. Attendees: 50
Description: Dynamic PRA methodologies explicitly account for the time element in probabilistic system evolution and heavily incorporate plant analysis/simulator tools to model possible dependencies between failure events that may arise from hardware/software/firmware/process/ human interactions. Dynamic PRA methodologies can also quantify the effects of phenomenological variability and model uncertainties on the consequences of upset conditions. They can benefit the PRA modeling of passive systems, including the representation of aging effects and digital instrumentation and control systems.
The workshop's objective is to provide a perspective on dynamic PRA methodologies, the circumstances under which they may be needed, and the existing challenges with their deployment. The use of some of the available software tools will be demonstrated.
Agenda
12:00 - 12:10 pm
Welcome and Introduction of Participants – Askin Guler Yigitoglu
12:10 - 12:25 pm
Dynamic PRA: A Historical Perspective by Tunc Aldemir (OSU) and Askin Guler Yigitoglu (ORNL)
12:25 - 12:45 pm
Current Activities and Methods by Valentin Rychkov and Claudia Picoco (EDF)
12:45 - 01:05 pm
01:05 - 01:45 pm
RAVEN Overview by Mohammad G. Abdo (INL)
01:45 - 02:30 pm
EMRALD Overview by Robby Christian (INL)
2:30 - 2:50 pm
Break
2:50 - 03:30 pm
EMRALD Demonstration by Robby Christian (INL)
3:30 - 4:15 pm
RAVEN LWR Demonstration by Mohammad G. Abdo (INL)
4:15 - 4:30 pm
DPRA for Advanced Reactors by Askin Guler Yigitoglu (ORNL)
4:30 - 5:00 pm
Wrap-up and Open Discussion
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Attachment — Statecharts as a Dynamic Method for PRA_Abstract
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