ML23018A053
| ML23018A053 | |
| Person / Time | |
|---|---|
| Issue date: | 01/24/2023 |
| From: | NRC/OCM |
| To: | |
| Shared Package | |
| ML22293A420 | List: |
| References | |
| M230124 | |
| Download: ML23018A053 (8) | |
Text
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
WESTINGHOUSE UPDATE FOR DOE ATF HIGH BURNUP PROGRAM Jeffrey L. Bradfute Senior Vice President, Americas PWR Fuel NRC Commission Briefing - January 24, 2023
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
2 Westinghouse EnCore fuel program enables 24-month cycles and significant uprates for PWRs with advanced cladding and pellets Encore and ADOPTTM are registered trademarks or trademarks of Westinghouse Electric Company LLC, its affiliates, and/or its subsidiaries through the United States of America and may be registered in other countries throughout the world. SIGA is a registered trademarks of General Atomics, its affiliates, and/or its subsidiaries through the United States of America and may be registered in other countries throughout the world. All rights reserved. Unauthorized use is strictly prohibited. Other names may be trademarks of their respective owners.
Chromium-Coated Zr Cladding ADOPT Fuel Pellets Advanced Cladding Chromium-Coated Zirconium -
increases safety and operational margin, and may enable high burnup Silicon Carbide Cladding - safety and operational benefits Advanced Fuel ADOPT fuel pellets - higher density, can support higher burn up Advanced Pellet (UN) - benefits to fuel cycle costs, and may support high burnup improved fuel cycle economics, thermal properties, and lower operating temperatures
- Enables 24-month cycles
- Improves fuel cycle economics
- Supported through higher enrichment and ATF technologies ATF Products Higher Burnup Fuel ACCIDENT TOLERANT FUEL PRODUCTS Uranium Nitride (UN) Pellets SiGA Silicon Carbide (SiC) Composite Cladding Photo courtesy of Los Alamos National Lab U15N Fuel Enables HB Fuel
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
Westinghouse rapidly progressed all facets of ATF program in 2022/2023 3
Dec 2021:
Submitted topical report burnup extensions to 68 MWd/kgU June 2022: ADOPT Pellet Final SERs issued, full region to be inserted in mid 2020s July 2022: Cold spray chosen as EnCore ATF Cr coating technology Zr Cr Aug 2022: Vogtle LAR submittal for ATF >5 w/o 235U LTAs Aug 2022: Byron 2 LAR submittal for reinsertion of ATF LTRs to exceed 75 MWd/kgU ATF: Accident Tolerant Fuel ATR: Advanced Test Reactor LAR: License Amendment Request LTR: Lead Test Rod SER: Safety Evaluation Report Spring 2023:
Submit topical report for higher enrichments > 5 w/o 235U Continuing into 2023: Develop in-rod sensors for model validation Fall 2023:
Complete fabrication of Vogtle ATF LTAs and insert Byron 2 LTA for 3rd burn Continuing into 2023: UN fuel property atomic scale model development Early 2023:
General Atomics work on SiGA(R) for ATR
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
Commercial reactor testing continues to confirm excellent performance of Westinghouse ATF products LTR/LTA Campaigns with Utility Partners provide critical data to support fuel qualification 4
Doel Unit 4 LTRs Cr Coated Rods Byron Unit 2 LTRs EOC 1 EOC 2 ATF rods appear "pristine" with excellent coating adherence and little indication of crud.
Byron Unit 2 (2019)
Doel Unit 4 (2020)
Vogtle Unit 2 (2023)
EDF LTRs (2023)
Cr Coated Cladding ADOPT Pellets High Density Pellets High Enriched Pellets LTR: Lead Test Rod LTA: Lead Test Assembly EOC: End of Cycle
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
Additional Byron 2 ATF and high burnup fuel shipments to INL and ORNL planned 5
Post irradiation examinations of Byron-2 fuel shipments confirm excellent EnCore fuel performance Credit: ORNL Photographer Carlos Jones Excellent cold sprayed Cr coating integrity with complete protection of substrate Rod A Rod A Mount material Mount Standard UO2 Optimized ZIRLO Cr 3 ATF and 4 high burnup rods received mid-2021 Cr Coating
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
Codes and methods and fuel transportation updates support deployment of ATF and high energy fuel
- PARAGON2TM two-dimensional fuel energy transport code approved by NRC for modeling of 235U enrichments up to 10%
- TravellerTM fuel shipping container package approved by NRC for 235U enrichments exceeding 5%
- Fuel fragmentation, relocation, and dispersal (FFRD) is at the center of the Westinghouse HBHE fuel program, fully support Industry efforts
- Topical reports under development to be submitted for approval between 2023 and 2025
- High enrichment topical to exceed the current 5% 235U enrichment limit
- Chromium coated cladding topical report
- PAD5TM supplement for burnups:
up to ~75 MWd/kgU
- FSLOCATM supplement for burnups:
up to ~75 MWd/kgU
- High burnup topical for burnups:
up to ~75 MWd/kgU 6
PARAGON2TM, TravellerTM, PAD5TM and FSLOCATM are trademarks of Westinghouse Electric Company LLC, its affiliates, and/or its subsidiaries through the United States of America and may be registered in other countries throughout the world. All rights reserved. Unauthorized use is strictly prohibited.
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
Summary
- Good progress being made on all fronts for ADOPT pellets and Coated Cladding with respect to development, fabrication scale-up, and licensing
- Poolside and Hotcell Post Irradiation Exam (PIE) support excellent fuel performance of ATF features
- Expect to insert first ATF feature (ADOPT pellets) in full region mid 2020s
- Good progress being made to fabricate UN pellets for test reactor testing and working with General Atomics to develop and qualify the SiC composite cladding
- ATF features provide enhanced safety, improved fuel cycle economics, support uprates and enable higher burnup / 24-month cycles 7
Westinghouse very appreciative for all DOE, NRC, National Lab, Utility and NEI/EPRI Support
Westinghouse Non-Proprietary Class 3 l © 2023 Westinghouse Electric Company LLC. All Rights Reserved.
This report was prepared as an account of work sponsored by an agency of the United States Government.
Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights.
Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
8 The following material is based upon work supported by the United Stated Department of Energy under Award Number DE-NE0009033