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​​​​​​​​​​​​​​​​​​​​​Risk-Informed Plant Health and Asset Management​​​​​


Goa​​​l

To develop better analytical methods and tools for the nuclear power industry to make risk-informed decisions regarding plant equipment reliability and asset management.

Researchers will develop data analytics tools coupled with risk-informed methods to manage and optimize plant-asset life cycles, budgets, and schedules. These tools and methods enhance the plant operator's ability to manage the performance and health of a nuclear power facility while reducing labor and equipment costs.

Outcome

The research area will produce risk-analysis tools designed to decrease the operational cost and enhance the safety of nuclear power plants in the short-term (for maintenance optimization) and the long-term (during periods of subsequent license renewal). The software and supporting tools will be made available to utilities and vendors that are considering extended operations.

​Planned Major Accomplishments

  • ​2025—Deploy developed and tested knowledge extraction methods from plant records.

  • 2026—Develop integration of Model-Based Systems Engineering (MBSE) tools and models with S-ML-AI methods.

  • 2027—​Develop computer-based reasoning methods based on plant data and MBSE models. 

Related Reports​

 

 

Development of Analysis Methods that Integrate Numeric and Textual Equipment Reliability Data, INL/RPT-23-74530110975In this report we show in detail how the integration and reasoning from numeric and textual ER data elements is performed. First, we present the developed library of MBSE models that focus on common NPP systems and assets. Then we show the development of computational methods designed to process and analyze numeric and textual ER data elements simultaneously.In this report we show in detail how the integration and reasoning from numeric and textual ER data elements is performed. First, we present the developed library of MBSE models that focus on common NPP systems and assets. Then we show the development of computational methods designed to process and analyze numeric and textual ER data elements simultaneously.9/16/2023 5:31:06 AMINL/RPT-23-74530 Light Water Reactor Sustainability Program Development of Analysis Methods that Integrate Numeric and Textual Equipment Reliability Data September 2023 U.S. 74https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Application of Margin-Based Methods to Assess System Health, INL/RPT-22-70361274554Health 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.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.12/16/2022 1:56:48 AMINL/RPT-22-70361 Light Water Reactor Sustainability Program Application of Margin-Based Methods to Assess System Health December 2022 U.S. Department of Energy Office of Nuclear 118https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Risk-Informed Initiating Events Accident Response, INL/RPT-22-6866937169Opportunities exist to make plants’ regulatory compliance processes more efficient which can be done by decreasing reliance on deterministic and prescriptive approaches and expansion of the use of risk-informed and performance-based approaches to demonstrate reactor safety. In this report, we researched possibilities of economic benefits potentially available from the application of concepts associated with a modernized regulatory framework developed for advanced reactors to the existing light water reactors. As the result, we have identified multiple areas of existing plant operations where modernization of compliance activities can offer substantial economic benefits. Additional research is needed to demonstrate these expected benefits using case studies conducted in collaboration with utilities.Opportunities exist to make plants’ regulatory compliance processes more efficient which can be done by decreasing reliance on deterministic and prescriptive approaches and expansion of the use of risk-informed and performance-based approaches to demonstrate reactor safety. In this report, we researched possibilities of economic benefits potentially available from the application of concepts associated with a modernized regulatory framework developed for advanced reactors to the existing light water reactors. As the result, we have identified multiple areas of existing plant operations where modernization of compliance activities can offer substantial economic benefits. Additional research is needed to demonstrate these expected benefits using case studies conducted in collaboration with utilities.10/4/2022 4:09:10 PMASSESSMENT OF TIMING PARAMETERS USED IN RISK ASSESSMENTS TO IDENTIFY OPPORTUNITIES FOR SAFETY MARGIN INCREASE Svetlana Lawrence 1 , N. Prasad Kadambi 2 Safety is a key aspect to 425https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Bridging Equipment Reliability Data and Robust Decisions in a Plant Operation Context, INL/RPT-22-67670186013This 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.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.9/7/2022 1:55:39 PMINL-RPT-22-67670 Light Water Reactor Sustainability Program Bridging Equipment Reliability Data and Robust Decisions in a Plant Operation Context June 2022 U.S. Department of 141https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Industry Use Cases for Risk-Informed System Health and Asset Management, INL/EXT-21-64377234746Industry Use Cases for Risk-Informed System Health and Asset Management, INL-EXT-21-64377Industry Use Cases for Risk-Informed System Health and Asset Management, INL-EXT-21-643779/29/2021 11:54:49 PMINL-EXT-21-64377 Light Water Reactor Sustainability Program Industry Use Cases for Risk-Informed System Health and Asset Management September 2021 U.S. Department of Energy 360https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Development and Release of the Methods and Tools for Risk-Informed Asset Management, INL/EXT-21-63255152635Development and Release of the Methods and Tools for Risk-Informed Asset Management, INL/EXT-21-63255Development and Release of the Methods and Tools for Risk-Informed Asset Management, INL/EXT-21-632558/25/2021 2:48:40 PMINL/EXT-21-63255 Light Water Reactor Sustainability Program Development and Release of the Methods and Tools for Risk-Informed Asset Management July 2021 U.S. Department of 388https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Development and Application of a Risk Analysis Toolkit for Plant Resources Optimization, INL/EXT-20-59942200474Development and Application of a Risk Analysis Toolkit for Plant Resources Optimization, INL/EXT-20-5994Development and Application of a Risk Analysis Toolkit for Plant Resources Optimization, INL/EXT-20-599410/1/2020 1:12:06 AMINL/EXT-20-59942 Light Water Reactor Sustainability Program Development and Application of a Risk Analysis Toolkit for Plant Resources Optimization September 2020 U.S. 515https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Integration of Data Analytics with Plant System Health Program, INL/EXT-20-59928200476Integration of Data Analytics with Plant System Health Program, INL-EXT-20-59928Integration of Data Analytics with Plant System Health Program, INL-EXT-20-599289/29/2020 10:57:36 PMINL/EXT-20-59928 Light Water Reactor Sustainability Program Integration of Data Analytics with Plant System Health Program September 2020 U.S. Department of Energy Office 567https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Combined Data Analytics and Risk Analysis Tool for Long Term Capital SSC Refurbishment and Replacement, INL/EXT-19-5581955524Combined Data Analytics and Risk Analysis Tool for Long Term Capital SSC Refurbishment and Replacement, INL-EXT-19-55819Combined Data Analytics and Risk Analysis Tool for Long Term Capital SSC Refurbishment and Replacement, INL-EXT-19-5581910/1/2019 3:49:39 AMINL-EXT-19-55819 Light Water Reactor Sustainability Program Combined Data Analytics and Risk Analysis Tool for Long Term Capital SSC Refurbishment and Replacement September 393https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Plant Integral Risk-informed System Health Program, INL/EXT-19-5580855436Plant Integral Risk-informed System Health Program, INL-EXT-19-55808Plant Integral Risk-informed System Health Program, INL-EXT-19-5580810/1/2019 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 942https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf

​For more information contact:

Svetlana (Lana) Lawrence
Risk-Informed Systems Analysis, Pathway Lead
Idaho National Laboratory


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Risk-Informed Asset Management Framework