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Skip Navigation LinksEnhanced Fire Probabilistic Risk Assessment

​​​​​​​​​​​​​​Enhanced Fire Probabilistic Risk Assessment


Goal​​​

To develop Fire Risk in 3D (FRI3D), a software tool that enhances fire-modeling capabilities and streamlines and simplifies fire probabilistic risk assessment (PRA) model development and maintenance, significantly reducing human effort and errors.

Outc​​ome

Researchers will develop a fire-modeling software tool that includes features such as fire-modeling from scratch, time- and space-dependent fire simulation, automated PRA workflow and a three-dimensional (3D) view of fire-scenario progression.

The software will complement existing plant fire PRAs. It imports existing plant models and then combines the required tools and methods in a 3D environment. It is expected, based on a pilot project's results, that FRI3D will reduce fire-modeling efforts by up to 50%, cut turnaround time by up to 50%, and decrease user error by 90% or more. This tool will also be used for research and development of enhanced time-dependent methods to improve the realism of scenario modeling and reduce undue conservatism.


Planned Major Accomplishments:​

  • 2022—improve software capabilities by including additional features desired by the industry; support software deployment to the industry and conduct a pilot project that will include enhanced scenario evaluation.

  • 2024—finalize FRI3D for industry technology transfer and evaluate FRI3D for other external hazards (e.g., flood); collaborate with Japan's Central Research Institute of Electric Power Industry to include testing of additional simulation features and incorporation of arc flash into scenarios.


Related Reports

 

 

Industry Level Feasibility of LiDAR Data into Fire Modeling Using Fire Risk Investigation in 3D (FRI3D), INL/RPT-22-677142471416/30/2022 4:11:54 PMINL/RPT-22-67714 Light Water Reactor Sustainability Program Industry Level Feasibility of LiDAR Data into Fire Modeling Using Fire Risk Investigation in 3D (FRI3D) June 2022 U.S. 26https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Risk-Informed Analysis for Enhanced Resilient Nuclear Power Plant with Initiatives including ATF, FLEX, and Advanced Battery Technology, INL-EXT-21-645462347589/29/2021 6:47:28 PMU.S. Department of Energy Office of Nuclear Energy This information was prepared as an account of work sponsored by an agency of the U.S. Government The purpose of the RISA Pathway 231https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Guidance Document for Using Dynamic Force-on- Force Tools, INL/EXT-21-642142213789/8/2021 9:36:04 PMINL/EXT-21-64214 Revision 0 Light Water Reactor Sustainability Program Guidance Document for Using Dynamic Force-on-Force Tools September 2021 U.S. Department of Energy Office of 69https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Industry Level Integrated Fire Modeling Using Fire Risk Investigation in 3D (FRI3D), INL/EXT-21-640792315658/31/2021 10:47:33 PMINL/EXT-21-604079 Light Water Reactor Sustainability Program Industry Level Integrated Fire Modeling Using Fire Risk Investigation in 3D (FRI3D) August 2021 U.S. Department of 182https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Risk-Informed ATF and FLEX Analysis for an Enhanced Resilient BWR Under Design-Basis and Beyond-Design-Basis Accidents, INL/EXT-20-599062052424/13/2021 7:16:42 PMU.S. Department of Energy Office of Nuclear Energy This information was prepared as an account of work sponsored by an agency of the U.S. Government The purpose of the RISA Pathway 53https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Fire Risk Investigation in 3D (FRI3D) Tool and Methods Demonstration for Enhanced Fire Modeling, INL/EXT-20-595062075919/22/2020 4:12:47 PMFire Risk Investigation in 3D (FRI3D) Software and Process for Integrated Fire Modeling This information was prepared as an account of work sponsored by an agency of the U.S. 676https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Risk Importance Ranking of Fire Data Parameters to Enhance Fire PRA Model Realism, INL/EXT-20-00212553716/1/2020 5:15:08 PMU.S. Department of Energy Office of Nuclear Energy This information was prepared as an account of work sponsored by an agency of the U.S. Government The level of fire risk and the 350https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Fuel Rod Burst Potential Evaluation under LOCA Conditions for an Existing Plant with Extended Burnup Exceeding the Current Limit by 20%, INL/EXT-19-55888554219/30/2019 6:50:04 PMU.S. Department of Energy Office of Nuclear Energy This information was prepared as an account of work sponsored by an agency of the U.S. Government Hongbin Zhang 1 , Cole Blakely 1 522https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Risk-Informed Analysis for an Enhanced Resilient PWR with ATF, FLEX, and Passive Cooling, INL/EXT-19-53556553728/29/2019 5:17:59 PMU.S. Department of Energy Office of Nuclear Energy This information was prepared as an account of work sponsored by an agency of the U.S. Government The purpose of the RISA Pathway 342https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Industry Fire Modeling Enhancement Tools and Methods, INL/EXT-19-54414554266/27/2019 7:49:10 PMU.S. Department of Energy Office of Nuclear Energy This information was prepared as an account of work sponsored by an agency of the U.S. Government The report lays out the path 197https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf

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​Fri3d Software.png

FRI3D software showing an example fire scenario with heat layer visualization and component failures. ​