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​​​​​​​Enhanced Resilient Plant Systems


Goal

To develop methods for using risk and cost-benefit analyses that combine plant-resiliency technologies to enhance the economic, operational, and safety of light-water nuclear power reactors.
The plant-resiliency enhancement technologies considered in this project include accident-tolerant fuel (ATF) with fuel-burnup extension and increased enrichment, flexible mitigation strategies, new battery technologies and passive cooling for pressurized and boiling-water reactor designs


Outcome

Researchers will produce a set of safety analyses based on combinations of plant-resiliency enhancement technologies to demonstrate approaches to safety margin management. The increase in safety margins will provide a basis for decision-makers to determine what enhancement strategies are most beneficial in terms of safety, operational flexibility, and plant economics.


Planned Major Accomplishments

  • 2022—complete safety analyses for accident-tolerant fuels with increased enrichment and extended burnup, including a discussion of the results on how plant enhancements (i.e., extended operation of steam-driven systems, flexible mitigation strategies, and portable equipment) can be used to manage plant safety.

  • 2023—finalize analyses of various non-loss of power benchmark safety case scenarios with plant enhancements credited for mitigation; develop industry guidance on how to use the results of these analyses to credit plant enhancements for plant risk reduction; complete and document risk-assessment methodology for ATF with higher enrichment and extended burnup.

  • 2024—complete a pilot project to provide information that may be used by the industry to support their efforts in accident-tolerant fuel licensing that includes necessary safety analyses required for ATF regulatory approval.

Related Reports

 

 

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 192https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Development of RELAP5-3D Modeling of Reactor Core Isolation Cooling (RCIC) System, INL/EXT-20-598192004779/29/2020 11:58:47 PMINL/EXT-20-59819 Light Water Reactor Sustainability Program Development of RELAP5-3D Modeling of Reactor Core Isolation Cooling (RCIC) System September 2020 U.S. 271https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
Evaluation of the Benefits of ATF, FLEX, and Passive Cooling System for an Enhanced Resilient PWR Model, INL/EXT-19-562155541710/30/2019 7:16:46 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 Zhegang Ma 1 , Cliff Davis 1 277https://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 468https://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 306https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf
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-17-42461554257/5/2017 9:31:54 PMINL/EXT-17-42461 Light Water Reactor Sustainability Program Industry Application ECCS / LOCA Integrated Cladding/Emergency Core Cooling System Performance: Demonstration of 108https://lwrs.inl.gov/RiskInformed Safety Margin Characterization/Forms/AllItems.aspxpdfFalsepdf








enhanced resilient plant.jpg
Concept of Enhanced Resilient Plant