ML23123A005

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Lwrs Newsletter Oct 2022
ML23123A005
Person / Time
Issue date: 05/03/2023
From: Gascot-Lozada R
NRC/RES/DE
To:
Light Water Reactor Sustainability
Ramon L. Gascot Lozada 301-415-2004
Shared Package
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Download: ML23123A005 (3)


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The Light Water Reactor Sustainability (LWRS) is a Department of Energy (DOE) pro-gram conducting research to develop technologies and other solutions to improve the economics and reliability, sustain the safety, and extend the operation of our na-tion's fleet of nuclear power plants. The NRC and the DOE has a Memorandum of Understanding (MOU) on Nuclear Innovation that allow the entities to share exper-tise and knowledge on advanced nuclear reactor technologies and nuclear energy innovation.

LWRS Status Highlights Main Goal: enable plant efficiency improvements through a strategy for long-term modernization Research Areas:

Data Architecture:

Latest Report: Technical Basis for Advanced Artificial Intelligence and Machine Learning Adoption in Nu-clear Power Plants Recap: This report presents the technical basis for developing ex-plainable and trustable artificial intelli-gence (AI) and machine learning (ML) technologies. The technical basis will lay the foundation for addressing the technical and regulatory adoption challenges of AI/ML technologies across plant assets and the nuclear industry at scale and to achieve seamless cost-effective automation without compromising plant safety and reliability. Report here:

Integrated Operation for Nuclear (ION):

Latest Report: Using Information Automation and Human Technology Integration to Implement Integrated Operations for Nuclear Recap: This report develop and demonstrate an approach to the design and imple-mentation of advanced, automated systems intended to increase operational effi-ciencies at nuclear power plants. Report here.

October 2022 Plant Modernization Pathway Forward-backward process to ensure reproducibility and interpretability of AI/ML technologies Program Mission

Main Goal: develop safety analysis methods and tools to optimize the safety, reliabi-lity, and economics of nuclear power plants Research Areas:

Enhanced Resilient Systems:

Safety Analysis for Accident-Tolerant Fuels (ATF) with Increased Enrichment and Extended Burnup-This report pre-sents a safety analyses of ATFs with in-creased enrichment and extended burnup to provide scientific knowledge of the ATF fuel performance, failure mechanisms, and results from fuel failure source terms during a severe accident. Report here.

Risk-Informed Asset management:

Risk-Informed Initiating Events Accident Response-This report documents the economic benefits potentially available from the application of concepts associated with a modernized regulatory framework developed for advanced reactors to the ex-isting light water reactors. Timing factors were utilized to demonstrate the complexity of the existing risk assessments and described how these complexities affect regula-tory compliance activities at the plants. Report here.

Risk Informed System Analysis (RISA) Pathway Page 2 Schematic diagram of ATF loaded PWR with extended burnup safety analysis Materials Research Pathway Main Goal: understand and predict long-term behavior of materials in nuclear power plants Research Areas:

Metals-Microstructural Characterization of Second High Fluence Baffle-Former Bolt Retrieved from Westinghouse Two-loop Downflow Type PWR-This report present a microstructural characterizations of the second high flu-ence baffle-former bolt. Analytical electron microscopy and atom probe tomog-raphy characterization were performed. Report here.

Concrete-No updates for this month Cables: Inhomogeneous Aging of Nuclear Power Plant Electrical Cable In-sulation-This report documented the results of nuclear cables insulation sam-ples subjected to thermal aging at temperatures like those used in historic envi-ronmental qualification. The aged materials were characterized for effects of aging using the conventional tensile elongation at break for all samples. Report here.

Physical Security Pathway Main Goal: develop technologies and technical bases to optimize physical security Research Areas Advanced Security Technologies Safety Guidance Document for Using Dynamic Force-on-Force (FOF) Tools-This document provides a guidance for using the dynamic computational framework for optimizing physical security at nu-clear power plants. The instructions in this docu-ment cover the FOF tools that are used by a ma-jority of U.S. commercial plants for their physical security modeling and assessment. Report here.

Risk-Informed Physical Security Risk-Informed Adversary Timeline Tool-This report has a focus on reducing conservatisms in adversary timelines which potentially lead to over protection of a potential attack path resulting in inefficiencies in areas of a plants security posture.

Report here.

Page 3 Flexible Plant Operation and Generation Pathway Main Goal: enable diversification and increase revenue of light water reactors to pro-duce non-electrical products Latest Report: Plan for Scaling Up Hydrogen Production with Nuclear Power Plants Recap: This report outlines the opportunity for Nuclear Power Plants to participate in the commercial nuclear hydrogen project intended to create a regional clean hydro-gen hubs. Report here.

Updates: Based on the latest meeting within the industry and the agency INL Publication on 100 MW nominal design report and generic 10 CFR 50.59 eval-uation will be finalized by November.

Upcoming Events 2022 US Department of Energy Light Water Reactor Sustainability (LWRS)

Program Materials Research Pathway Virtual Stakeholder Engagement meetings:

Concrete: November 7th 2022-12:00 PM-5:30 PM Scheduler and Agenda Metals: November 9th, 2022-12:00 PM-5:30 PM Scheduler and Agenda Cables: November 10th, 2022-12:00 PM-5:30 PM Scheduler and Agenda Flow for creating a base case comparison results Prepared by: Ramón L. Gascot (RES/DE/RGPMB)