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​​​​​​​​Risk-Informed Multiphysics Best Estimate Plus Uncertainties


​Goal

To implement full risk-informed multiphysics best estimate plus uncertainty analysis capability in RELAP5-3D to support more-detailed physics-based analyses and develop an human-reliability analysis (HRA) control module in RELAP5-3D for coupling with HUNTER.​

Outcome

Researchers will enhance features of RELAP5-3D required for support of other Light Water Reactor Sustainability Program projects, including this capability, a dynamic HRA control module, and the improved coupling with RAVEN required to perform automated workflow for dynamic probabilistic risk assessment and HRA.​

​Related Reports

 

 

Plant Integral Risk-informed System Health Program, INL-EXT-19-558085543610/1/2019 8:01:50 AMINL-EXT-19-55808 Light Water Reactor Sustainability Program Plant Integral Risk-informed System Health Program September 2019 U.S. Department of Energy Office of Nuclear Energy 567https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Risk-Informed Systems Analysis (RISA) Pathway Industry Application Pilot Demonstration Projects - Edition 2019, INL/EXT-19-54449553676/28/2019 6:13:16 PMINL/EXT-19-54449 Light Water Reactor Sustainability Program Risk-Informed Systems Analysis (RISA) Pathway Industry Application Pilot Demonstration Projects - Edition 2019 209https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
A Strategic Approach to Employ Risk-Informed Methods to Enable Margin Recovery of Nuclear Power Plants Operating Margins, INL/EXT-18-514915551710/1/2018 3:10:49 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 focus of this report is to 105https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
RISA Industry Use Case Analysis, INL/EXT-18-51012,553689/4/2018 4:07:09 PMLight Water Reactor Sustainability (LWRS) Program Ronaldo Szilard, Hongbin Zhang, Stephen Hess, John Gaertner Diego Mandelli, Steven Prescott, Mitchell Farmer 189https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Multi-Hazard Advanced Seismic Probabilistic Risk Assessment Tools and Applications, INL/EXT-16-40055543210/6/2016 2:10:32 PMINL/EXT-16- 40055 Light Water Reactor Sustainability Program Multi-Hazard Advanced Seismic Probabilistic Risk Assessment Tools and Applications Justin L. Coleman Chandu Bolisetti 319https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
R&D Plan for RISMC Industry Application #1: ECCS/LOCA Cladding Acceptance Criteria, INL/EXT-16-38231557664/25/2016 9:36:35 PMINL/EXT-16-38231 Light Water Reactor Sustainability Program R&D Plan for RISMC Industry Application #1: ECCS/LOCA Cladding Acceptance Criteria Ronaldo Szilard Hongbin Zhang Aaron 151https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Industry Application Emergency Core Cooling System Cladding Acceptance Criteria Early Demonstration, INL-EXT-15-36541559189/30/2015 8:43:30 PMINL/EXT-15-36541 Light Water Reactor Sustainability Program Industry Application Emergency Core Cooling System Cladding Acceptance Criteria Early Demonstration Ronaldo H Szilard 271https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Industry Application External Hazard Analyses Problem Statement, INL-EXT-15-36101559167/31/2015 8:41:07 PMRonaldo H Szilard, Justin Coleman, Curtis L Smith, Steven Prescott, Annie Kammerer, Robert Youngblood, Chad Pope This information was prepared as an 87https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
RISMC Advanced Safety Analysis Project Plan FY2015–FY2019, INL/EXT-14-33186551869/29/2014 10:13:29 PMThis information was prepared as an account of work sponsored by an agency of the U.S. Government Neither the U.S. Government nor any agency thereof, nor any of their employees 104https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Enhanced Severe Transient Analysis for Prevention Technical Program Plan, INL/EXT-33228551989/29/2014 6:29:19 PMThis information was prepared as an account of work sponsored by an agency of the U.S. Government Neither the U.S. Government nor any agency thereof, nor any of their employees 96https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf









RELAP53d.png

RELAP5-3D simulation view screenshot. The capability to perform detailed physics-based modeling such as thermal hydraulics simulation is important to minimize conservatism typical for traditional models. This helps to improve overall risk metrics.