|
 Project_Category : 00 - Risk-Informed Initiatives and Applications (2)
|
| Tools and Methods for Optimization of Nuclear Plant Outages, INL/RPT-23-74439 | This research focused on the initial development and demonstration of tools and methods supporting outage activities to manage activities effectively with the goal to minimize outage time. | | 9/8/2023 |
| Integration of Data Analytics with Plant System Health Program, INL/EXT-20-59928 | Integration of Data Analytics with Plant System Health Program, INL-EXT-20-59928 | | 9/21/2020 |
| Project_Category : 01 - Enhanced Resilient Systems (9)
|
| Assessment of Modeling and Simulation Technical Gaps in Safety Analysis of High-Burnup Accident-Tolerant Fuels, INL/RPT-23-70844 | Many U.S. utilities are targeting implementation of ATFs instead of traditional fuel in the near future since ATFs offer benefits in terms of improved performance and cost savings. The robust properties of ATF make it possible to extend the refueling cycle from 18 to 24 months in addition to the opportunity to use less of fuel. | | 1/30/2023 |
| Safety Analysis for Accident-Tolerant Fuels with Increased Enrichment and Extended Burnup, INL/RPT-22--68581 | The ERP R&D efforts in fiscal year (FY) 2022 focused on safety analyses of ATFs with increased enrichment and extended burnup to provide scientific knowledge of the ATF fuel performance, failure mechanisms, and resulting from fuel failure source terms during a severe accident, INL/RPT-22--68581 | | 8/14/2022 |
| Risk-Informed Analysis for Enhanced Resilient Nuclear Power Plant with Initiatives including ATF, FLEX, and Advanced Battery Technology, INL/EXT-21-64546 | Risk-Informed Analysis for Enhanced Resilient Nuclear Power Plant with Initiatives including ATF, FLEX, and Advanced Battery Technology, INL/EXT-21-64546 | | 9/28/2021 |
| Risk-Informed ATF and FLEX Analysis for an Enhanced Resilient BWR Under Design-Basis and Beyond-Design-Basis Accidents, INL/EXT-20-59906 | Risk-Informed ATF and FLEX Analysis for an Enhanced Resilient BWR Under Design-Basis and Beyond-Design-Basis Accidents, INL/EXT-20-59906 | | 9/29/2020 |
| Development of RELAP5-3D Modeling of RCIC System, INL/EXT-20-59819 | Development of RELAP5-3D Modeling of Reactor Core Isolation Cooling (RCIC) System, INL/EXT-20-59819, H. Zhang, C. Blakley, September 2020. | | 9/21/2020 |
| Evaluation of the Benefits of ATF, FLEX, and Passive Cooling System for an Enhanced Resilient PWR Model, INL/EXT-19-56215 | Evaluation of the Benefits of ATF, FLEX, and Passive Cooling System for an Enhanced Resilient PWR Model, INL/EXT-19-56215 | | 10/17/2019 |
| Fuel Rod Burst Potential Evaluation under LOCA Conditions for an Existing Plant with Extended Burnup Exceeding the Current Limit by 20%, INL/EXT-19-55888 | Fuel Rod Burst Potential Evaluation under LOCA Conditions for an Existing Plant with Extended Burnup Exceeding the Current Limit by 20%, INL/EXT-19-55888 | | 9/20/2019 |
| Risk-Informed Analysis for an Enhanced Resilient PWR with ATF, FLEX, and Passive Cooling, INL/EXT-19-53556 | Risk-Informed Analysis for an Enhanced Resilient PWR with ATF, FLEX, and Passive Cooling, INL/EXT-19-53556 | | 8/29/2019 |
| Industry Application ECCS/LOCA Integrated Cladding/Emergency Core Cooling System Performance: Demonstration of LOTUS-Baseline Coupled Analysis of the South Texas Plant Model, INL/EXT-17-42461 | Industry Application ECCS/LOCA Integrated Cladding/Emergency Core Cooling System Performance: Demonstration of LOTUS-Baseline Coupled Analysis of the South Texas Plant Model, INL/EXT-17-42461 | | 6/18/2017 |
| Project_Category : 02 - Risk-Informed Plant Health and Asset Management (9)
|
| Bridging Equipment Reliability Data and Robust Decisions in a Plant Operation Context, INL/RPT-22-67670 | This report shows the latest improvements on the three main research areas that the risk-informed asset management project is focusing on: equipment reliability data analytics, system reliability modeling, and plant resource optimization methods. It is discussed in the report how the methods developed in these areas can support predictive maintenance strategies by identifying the most critical components and setting an optimal maintenance schedule based on plant economic and operational constraints. | | 6/7/2022 |
| Industry Use Cases for Risk-Informed System Health and Asset Management, INL/EXT-21-64377 | Industry Use Cases for Risk-Informed System Health and Asset Management, INL-EXT-21-64377 | | 9/29/2021 |
| Development and Release of the Methods and Tools for Risk-Informed Asset Management, INL/EXT-21-63255 | Development and Release of the Methods and Tools for Risk-Informed Asset Management, INL/EXT-21-63255 | | 7/26/2021 |
| Development and Application of a Risk Analysis Toolkit for Plant Resources Optimization, INL/EXT-20-59942 | Development and Application of a Risk Analysis Toolkit for Plant Resources Optimization, INL/EXT-20-5994 | | 9/21/2020 |
| Combined Data Analytics and Risk Analysis Tool for Long Term Capital SSC Refurbishment and Replacement, INL/EXT-19-55819 | Combined Data Analytics and Risk Analysis Tool for Long Term Capital SSC Refurbishment and Replacement, INL-EXT-19-55819 | | 9/21/2019 |
| Plant Integral Risk-informed System Health Program, INL/EXT-19-55808 | Plant Integral Risk-informed System Health Program, INL-EXT-19-55808 | | 9/20/2019 |
| CRAFT An Integrated Risk Analysis Tool and its Application in an Industry Use Case, INL/EXT-18-51442 | Cost Risk Analysis Framework (CRAFT) An Integrated Risk Analysis Tool and its Application in an Industry Use Case, INL/EXT-18-51442 | | 9/26/2018 |
| Data Analysis Approaches for the Risk-Informed Safety Margins Characterization Toolkit, INL/EXT-16-39851 | Data Analysis Approaches for the Risk-Informed Safety Margins Characterization Toolkit, INL/EXT-16-39851 | | 9/1/2016 |
| Improved Sampling Algorithms in the Risk-Informed Safety Margin Characterization Toolkit, INL/EXT-15-35933 | Improved Sampling Algorithms in the Risk-Informed Safety Margin Characterization Toolkit, INL-EXT-15-35933 | | 8/1/2015 |
| Project_Category : 03 - Integrated Risk Assessment for Digital Instrumentation and Control (8)
|
| An Integrated Framework for Risk Assessment of Safety-related Digital Instrumentation and Control Systems in Nuclear Power Plants: Methodology Refinement and Exploration, INL/RPT-23-74412 | In FY 2023, this project focused on enhancing software common cause failure (CCF) modeling and risk assessment methods for digital instrumentation and control (DI&C) systems. The goal is to strengthen the methodology for assessing safety-related DI&C systems. The proposed framework and methods have been refined through feedback from industrial partners and previous technical peer reviews. A modification to the CCF approach within the proposed framework improves its ability to model and evaluate software CCFs in diverse DI&C systems. This project also investigated new methodologies for assessing human system interfaces, conducting dynamic probabilistic risk analyses on CCF evaluation, and evaluating the reliability of potential machine learning models integrated into DI&C systems. These efforts aim to provide a more comprehensive assessment of various safety-related DI&C design architectures. | | 9/15/2023 |
| EMRALD-HUNTER: An Embedded Dynamic Human Reliability Analysis Module for Probabilistic Risk Assessment, INL/RPT-23-72783 | EMRALD is a software package for dynamic probabilistic risk assessment, while HUNTER is a tool for modeling human reliability analysis. The integration of these tools, known as EMRALD-HUNTER, enables streamlined risk modeling for both plant systems and human operator reliability, incorporating human reliability analysis into dynamic probabilistic risk assessment models. | | 5/31/2023 |
| Summary of Technical Peer Review on the Risk Assessment Framework proposed in Report INL/RPT-22-68656 for Digital Instrumentation and Control Systems, INL/RPT-23-71699 | The objective of this technical peer review is to obtain representative feedback on the proposed framework to improve the technical qualities of its methodology and readiness for deployment to the industry. Feedback may identify potential areas for improvement and further development. The subject-matter experts were invited to review the latest project report documenting the methodology developed in the project and provide evaluations of the technical qualities of the proposed framework and relevant methods. | | 4/27/2023 |
| Risk Analysis of Various Design Architectures for High Safety-Significant Safety-Related Digital Instrumentation and Control Systems of Nuclear Power Plants During Accident Scenarios, INL/RPT-22-70056 | In FY 2019, the RISA Pathway initiated a project to develop a risk assessment strategy for delivering a technical basis to support effective and secure DI&C technologies for digital upgrades/designs | | 11/24/2022 |
| An Integrated Framework for Risk Assessment of High Safety-Significant Safety-Related Digital Instrumentation and Control Systems in Nuclear Power Plants: Methodology and Demonstration, INL/RPT-22-68656 | An Integrated Framework for Risk Assessment of High Safety-significant Safety-related Digital Instrumentation and Control Systems in Nuclear Power Plants: Methodology and Demonstration. | | 9/20/2022 |
| Quantitative Risk Analysis of High Safety significant Safety-related Digital Instrumentation and Control Systems in Nuclear Power Plants using IRADIC Technology, INL/EXT-21-64039 | Quantitative Risk Analysis of High Safety significant Safety-related Digital Instrumentation and Control Systems in Nuclear Power Plants using IRADIC Technology, INL/EXT-21-64039 | | 8/31/2021 |
| Redundancy-guided System-theoretic Hazard and Reliability Analysis of Safety related Digital Instrumentation and Control Systems in Nuclear Power Plants, INL/EXT-20-59550 | Redundancy-guided System-theoretic Hazard and Reliability Analysis of Safety related Digital Instrumentation and Control Systems in Nuclear Power Plants, INL/EXT-20-59550 | | 8/15/2020 |
| An Integrated Risk Assessment Process for Digital Instrumentation and Control Upgrades of Nuclear Power Plants, INL/EXT-19-55219 | An Integrated Risk Assessment Process for Digital Instrumentation and Control Upgrades of Nuclear Power Plants, INL/EXT-19-55219 | | 8/1/2019 |
| Project_Category : 04 - Human Reliability Analysis - HUNTER (8)
|
| Human Unimodel for Nuclear Technology to Enhance Reliability (HUNTER) Demonstration: Part 2, Model Runs of Operational Scenarios, INL/RPT-22-70076 | The purpose of this report is to demonstrate two additional operational scenarios modeled in HUNTER: startup and loss of feedwater. The report also documents additional features in HUNTER accomplished through coupling it with the Rancor Microworld Simulator. | | 11/15/2022 |
| HUNTER Demonstration: Part 1, Empirical Data Collection of Operational Scenarios, INL/RPT-22-69167 | Human Unimodel for Nuclear Technology to Enhance Reliability (HUNTER) Demonstration: Part 1, Empirical Data Collection of Operational Scenarios. | | 9/15/2022 |
| Software Implementation and Demonstration of the HUNTER, INL/RPT-22-66564 | Software Implementation and Demonstration of the Human Unimodel for Nuclear Technology to Enhance Reliability (HUNTER) | | 3/31/2022 |
| An Adaptable Software Toolkit for Dynamic Human Reliability Analysis: Progress Toward HUNTER 2, INL/EXT-21-64525 | The report concludes with a discussion of future activities. One
area of considerable focus is ensuring additional scenarios are modeled to support emerging industry needs for human reliability analysis | | 9/30/2021 |
| Integration of Human Reliability Analysis Models into the Simulation-Based Framework, INL/EXT-16-39015 | Integration of Human Reliability Analysis Models into the Simulation-Based Framework, INL/EXT-16-39015 | | 6/1/2016 |
| Proof-of-Concept Demonstrations for Computation-Based Human Reliability Analysis: Modeling Operator Performance During Flooding Scenarios, INL/EXT-15-36741 | Proof-of-Concept Demonstrations for Computation-Based Human Reliability Analysis: Modeling Operator Performance During Flooding Scenarios, INL-EXT-15-36741 | | 9/1/2015 |
| A Research Roadmap for Computation-Based Human Reliability Analysis, INL/EXT-15-36051 | A Research Roadmap for Computation-Based Human Reliability Analysis, INL-EXT-15-36051 | | 7/1/2015 |
| Simulation and Non-Simulation Based Human Reliability Analysis Approaches, INL/EXT-14-33903 | Simulation and Non-Simulation Based Human Reliability Analysis Approaches, INL-EXT-14-33903 | | 9/1/2014 |
| Project_Category : 05 - Plant Fuel Reload Optimization (6)
|
| Pressurized-Water Reactor Core Design Demonstration with Genetic Algorithm Based Multi-Objective Plant Fuel Reload Optimization Platform, INL/RPT-23-74498 | This report summarizes development and demonstration activities of the Plant Reload Optimization (PRLO) platform which aims to provide optimized core design solution during fuel reloading by using artificial intelligence technology. During FY23, the project focused on the improvement of the platform by implying multiobjective and multiphysics problem solver to handle large size of objectives and constraints and its demonstration. The platform is now fully capable to produce optimized nuclear reactor core design along with the system safety and fuel performance analysis results which are required for the licensing during fuel reloading. | | 9/14/2023 |
| Development of Genetic Algorithm Based Multi-Objective Plant Reload Optimization Platform, INL/RPT-23-71667 | The purpose of this report is to develop and demonstrate artificial intelligence (i.e., Genetic Algorithm) based nuclear reactor fuel reloading optimization platform by integrating the non-dominated sorting genetic algorithm II (NSGA-II). This allowed solving the multi-objective optimization framework for realistic plant reload optimization problem with improved termination criteria, constraints handling and active subspaces. Demonstrations were performed with verification test and benchmark case. | | 3/27/2023 |
| Development of Plant Reload Optimization Platform Capabilities for Core Design and Fuel Performance Analysis, INL/RPT-22-70382 | The Plant Reload Optimization Platform development project aims to build a reactor core design tool that includes reactor safety and fuel performance analyses, and also uses artificial intelligence to support optimization of core design solutions. | | 12/31/2022 |
| Development and Demonstration of a Risk-Informed Approach to the Regulatory Required Fuel Reload Safety Analysis, INL/RPT-22-68628 | Development and Demonstration of a Risk-Informed Approach to the Regulatory Required Fuel Reload Safety Analysis, INL/RPT-22-68628 | | 8/1/2022 |
| Demonstration of the Plant Fuel Reload Process Optimization for an Operating PWR, INL/EXT-21-64549 | This report summarizes the research outcomes in FY-2021, which the project progressed from the planning and methodology development phase to the early demonstration phase. | | 9/30/2021 |
| RISA Plant Reload Process Optimization: Development of design basis accident methods for plant reload license optimization, INL/EXT-20-59614 | RISA Plant Reload Process Optimization: Development of design basis accident methods for plant reload license optimization, INL/EXT-20-59614 | | 8/9/2020 |
| Project_Category : 06 - Enhanced Fire Probabilistic Risk Assessment (12)
|
| Methods and Feature Enhancements for Industry Use of EMRALD, INL/RPT-23-74447 | EMRALD is a dynamic PRA tool developed by the Idaho National Laboratory. It is an open-source tool that has been used for many research projects along with more recent academic and industry projects. To expand for more industry use and analysis, a strong validation framework and test cases needed to be developed. Also, additional features needed to be added to enable some scenarios and ease of use. This report goes over the initial validation framework setup and testcase as well as the software modification from this project. Initially, this project was going to include implementing methods for coupling with classical PRA tools. However, earlier research concluded that coupling methods would only be mathematically valid for limited scenarios, so work was pivoted to other areas of improving industry use. | | 9/6/2023 |
| FRI3D Industry Adoption and Verification Tasks, INL/RPT-23-74213 | This report outlines several updates and additions that were made to help meet industry needs before it can be fully transferred to an industry partner for commercial use. Examples include software verification features and a library of commercially used fire sources. This report also goes over work for industry adoption, including a fire analys is pilot study done for a nuclear power plant modification. This pilot study showed a time comparison between using FRI3D and current methods used by fire analysis experts and an evaluation from the experts on the potential for use by industry. | | 8/28/2023 |
| Summary of Technical Peer Review on the Risk Assessment Framework proposed in Report INL/RPT-22-68656 for Digital Instrumentation and Control Systems, INL/RPT-23-71699 | This peer review report documents the technical questions provided for technical peer review and introduces the technical peer reviewers from stakeholders including nuclear utilities, regulators, and academia. Comments from technical peer reviewers and the resolutions and responses to these comments are outlined. Insights and potential future work obtained from this technical peer review are summarized in conclusions. | | 3/31/2023 |
| Solutions for Enhanced Legacy Probabilistic Risk Assessment Tools and Methodologies Improving Efficiency of Model Development and Processing via Innovative Human Reliability Dependency Analysis, INL/RPT-23-71788 | This report focuses on the potential to improve model efficiencies, including quantification speed, via enhanced techniques for modeling human-action dependency analyses. In addition, this report explores opportunities to improve the underlying theoretical bases of a dependency analysis by investigating prospects for empirical data collection. | | 3/30/2023 |
| FRI3D Fire Simulation Options and Verification Tasks, INL/RPT-23-70843 | The Fire Risk Investigation in 3D (FRI3D) software was developed at the Idaho National Laboratory under the Risk-Informs System Analysis pathway under the Light Water Reactor Sustainability Program. This software combines the multiple tools used by industry for fire modeling with the plant risk analysis and 3D spatial information. | | 1/31/2023 |
| Dynamic and Classical PRA Coupling using EMRALD and SAPHIRE, INL/RPT-22-70424 | Both classical and dynamic probabilistic risk assessment tools are valuable for different kinds of analysis. Typically, one or the other is used depending on the scenario and the limitations of the tool. Often, the results of one are used as a parameter in the other. This research looks at the possible methods for combining classical and dynamic analyses by coupling EMRALD and SAPHIRE. This was initial exploratory research to evaluate methods and determine how the tools could be coupled. A short background of SAPHIRE and its solving methods is provided, along with information on EMRALD to help understand the correlation between the two types of modeling. | | 12/15/2022 |
| Application of Margin-Based Methods to Assess System Health, INL/RPT-22-70361 | Health management of complex systems such as nuclear power plants is an essential task to guarantee system reliability. This task can be greatly enhanced by constantly monitoring asset status/performances, and processing such data (through anomaly detection, diagnostic, and prognostic computational algorithms) to identify asset degradation trends and faulty states. | | 12/15/2022 |
| Industry Level Feasibility of LiDAR Data into FRI3D, INL/RPT-22-67714 | This report presents Idaho National Lab’s work with Environmental Intellect (Ei) covering two main efforts. First, to reduce the effort of “tagging” data in large 3D models. By using both existing plant database information and artificial intelligence (AI) to find and read equipment labels. This research explores the ability to provide a simple way for the user to tag items and verify plant data, capturing both the speed of AI and human verification. | | 7/25/2022 |