ML20050P124
| ML20050P124 | |
| Person / Time | |
|---|---|
| Issue date: | 02/25/2020 |
| From: | NRC/OCM |
| To: | |
| Shared Package | |
| ML20002B811 | List: |
| References | |
| M200225 | |
| Download: ML20050P124 (37) | |
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Overview of Accident Tolerant Fuel Activities Commission Meeting February 25, 2020
2 Opening Remarks Daniel Dorman Deputy Executive Director for Reactor and Preparedness Programs
ATF Has National Strategic Importance
- Congressional Attention
- Continued Funding
- Status Report Requested in NEIMA
- High Priority for Licensees
- High Burnup/Increased Enrichment 3
Following the ATF Project Plan Prepared to License Near-term ATF Concepts Being a Modern, Agile, and Risk-Informed Regulator 4
Meeting Agenda
- Overview of ATF Activities
- Readiness for Licensing Near-term ATF Concepts
- Front-end and Back-end Burnup/Enrichment Considerations
- Marilyn Diaz
- Technical Bases for Review of Chromium-coated Cladding and In-reactor Burnup Extension
- Preparation of Confirmatory Analysis Tools for ATF Concepts
- James Corson 5
Overview of ATF Activities Andrea Veil Deputy Director for Engineering Office of Nuclear Reactor Regulation 6
Ready to Engage in the Licensing Process 7
Early and Frequent Communication Is Key Coordination with US Dept. of Energy International NRC-Internal 8
Vendor/Licensee Schedules Facility Visits
We Are Reviewing the Regulatory Framework and Processes
- Assessing need for rulemaking and new/updated guidance documents
- Ensuring staff resources 9
Staff Is Following Technical Issues 10 10
Readiness for Licensing Near -Term ATF Concepts Michael Orenak, ATF Project Manager Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation 11
Status of Near-Term ATF Technologies
- Chromium-coated Cladding
- Topical report coming in 2020
- Doped Pellets
- Approved for BWR applications
- Vendors exploring PWR applications
- FeCrAl Cladding
- Lead Test Assembles have been inserted
- No submittal dates are currently known 12 Cr Zircaloy-4
The ATF Project Plan Is Being Followed Regulatory and Licensee Actions are Happening in Parallel Development of Technical Bases PIRT Exercise Licensee Actions NRC Actions Project Timeline PIRT Maintenance Refinement of Regulatory Infrastructure Licensing Activities 13
The ATF Project Plan Is Being Followed Use of a PIRT in Regulatory Infrastructure Development ISG Issuance Before Applications are Received 14
15 Clarification of Regulatory Positions for Lead Test Assemblies High Burnup and Increased Enrichment Appendix The Staff Is Being Flexible and Responsive to Stakeholder Needs 15
Early and Frequent Communication Is Key to Success of the Project Plan 2018 2019 2020 Meetings with a Public Portion Documents GNF RIS 2019-03 PIRT Process Project Plan V1.1 LTA Letter Project Plan Senate EPW ACRS Sub.
Framatome RIC Session Westinghouse Cr-coated PIRT GNF Cr-coated ISG HBU/IE ACRS Sub.
GNF Cr-coated ISG Project Plan V1.0 Commission Mtg.
Framatome Commission Mtg.
16
The Staff Is Ready for Known Forthcoming Applications PIRTs and Guidance Licensing Roadmap Tabletop Exercises Analysis Tools Licensing Timeline 17
Front-end and Back-end Burnup/Enrichment Marilyn Diaz, Chemical Engineer Division of Fuel Management Office of Nuclear Material Safety and Safeguards 18
We Are Making Progress Issued Special Authorizations Issued a Revision to Certificate of Compliance Supported Project Plan Appendix A Identify critical path for licensing actions 19
Improving and Informing Our Processes
- Smarter licensing with focus on safety
- Continue assessing the current regulatory framework
- Collecting additional information through research Reactor Fuel Fabrication Fresh Fuel Transportation UF6 Transportation Enrichment Reactor Spent Fuel 20
We Are Engaging Early with Stakeholders
- Conferences and public meetings
- Pre-application interactions
- Correspondence sent to NEI informing NMSS critical path to support industrys 2023 goal.
21
Preparing Our Staff Ensuring workforce is equipped for HALEU and ATF applications.
22
Technical Bases for Review of Chromium-Coated Cladding and In-reactor Burnup Extension Josh Whitman, Nuclear Engineer Technical Lead - ATF Working Group Division of Safety Systems Office of Nuclear Reactor Regulation 23
We Issued Interim Staff Guidance for Review of Chromium-coated Cladding
- Input from stakeholders gathered through public meetings and comments ISG
- Input from panel of experts PIRT Report
ISG Provides Framework for Licensing Submittals and Reviews 25 Chromium Optimized Zirlo' Zirconium Oxide After Steam Oxidation for 20 minutes @ 1200°C
LTA insertion
- Little to no irradiated data
- Small number of assemblies First Batch Loads
- Data from first cycle of LTA burnup
- Conditions &
Limitations on burnup or quantity Full Core
- Additional data from LTAs Benefits Claimed
- Full suite of data from experiments and LTAs We Are Ready to Review Coated Cladding Topical Reports Phased Approach 26
High Burnup and Increased Enrichment Appendix to ATF Project Plan Issued 27
We Remain Engaged with Industry on Fuel Fragmentation, Relocation and Dispersal (FFRD)
~ Current Burnup Limits
~ Proposed Burnup Limits 28
Staff Has Continued its Early Engagement with DOE and Industry Framatome Richland Oak Ridge National Lab 29
Preparation of Confirmatory Analysis Tools for ATF Concepts Dr. James Corson, Reactor Systems Engineer Division of Systems Analysis Office of Nuclear Regulatory Research 30
RES Is Supporting NRCs Readiness for ATF
- Preparing confirmatory analysis tools
- Participating in international research programs
- Conducting literature reviews and PIRTs MELCOR 31
Zircaloy Properties Zircaloy Properties Zircaloy properties Mechanical Models ATF Properties ATF Properties UO2 properties Mechanical Models Codes Are Being Updated to Be Modular and Flexible BEFORE AFTER 32
Zircaloy properties UO2 properties Fuel Performance (FAST)
Efficiency Is Gained with the Modular Code Fuel Performance Zircaloy properties UO2 properties Thermal Hydraulic Thermal Hydraulic (TRACE)
Zircaloy Properties Zircaloy Properties ATF Properties ATF Properties Zircaloy Properties Zircaloy Properties ATF Properties ATF Properties AFTER BEFORE 33
We Are Following International Research Programs to Obtain Data on ATF
- Cabri International Project (CIP) and the Nuclear Safety Research Reactor (NSRR) provide RIA data
- QUENCH Programme at the Karlsruhe Institute of Technology (KIT) provides cladding LOCA data Zircaloy Properties Zircaloy Properties ATF Properties ATF Properties 34
We Are Increasing Our Knowledge Ahead of Submittals
- Cr-coated cladding PIRT completed
- HBU literature review completed
- Several other literature reviews in progress
Our Next Area of Focus Is Increasing Knowledge about Severe Accident and Source Term Behavior Severe Accident Knowledge PRA Surrogate Criteria Incident
Response
Capabilities Incident
Response
Capabilities ATF Severe Accident PIRT 36
37 NRC Staff Working on ATF