ML22083A006
| ML22083A006 | |
| Person / Time | |
|---|---|
| Issue date: | 03/28/2022 |
| From: | Joseph Donoghue NRC/NRR/DSS |
| To: | |
| Joe Donoghue NRR/DSS 301-415-1193 | |
| Shared Package | |
| ML22083A005 | List: |
| References | |
| Download: ML22083A006 (9) | |
Text
Accident Tolerant Fuel Overview EPRI-DOE ATF WS Joe Donoghue, NRC March 28, 2022 We make SAFE use of nuclear technology POSSIBLE.
We make SAFE use of nuclear technology POSSIBLE.
Near-Term ATF Technologies 2
Coated Cladding
- A thin chromium-based layer is applied to the cladding outer diameter
- NRR staff have issued Interim Staff Guidance ATF-ISG-2020-01 to support reviews
- Currently awaiting topical reports Doped Pellets
- UO2 pellets contain small amounts of added materials that improve performance through larger grain sizes
- Already approved for BWRs.
Two fuel vendors have submitted TRs for PWRs.
- No foreseen licensing challenges FeCrAl Cladding
- Iron-Chromium-Aluminum based alloy fuel cladding.
- Commercialization is a few years away
We make SAFE use of nuclear technology POSSIBLE.
Longer Term ATF Technologies 3
High Density (Uranium Nitride)
Pellets
- Ceramic composite-woven fibers around a monolithic tube Extruded Metallic Fuel
- Extruded metallic bar composed of a Zirconium-Uranium matrix within a zirconium alloy cladding
We make SAFE use of nuclear technology POSSIBLE.
Increased Enrichment and Higher Burnup 4
Higher Burnup
- Current limit ~ 62 gigawatt days per (GWd/MTU) rod-average burnup - Not a regulatory limit
- Industry goal to reach 75 to 80 GWd/MTU Increased Enrichment
- Enrichment currently limited to 5 weight percent 235U.
- Industry goal up to 10 weight percent 235U
We make SAFE use of nuclear technology POSSIBLE.
5 Development of technical bases Licensing activities Data and technical information sharing Phenomena identification and ranking exercise Staff education Potential changes to regulatory infrastructure Code development Licensing review NRC ATF Project Plan Industry NRC Frequent communication and engagement throughout
We make SAFE use of nuclear technology POSSIBLE.
6 SECY-21-0109: Rulemaking Plan on Use of Increased Enrichment of Conventional and Accident Tolerant Fuel Designs for Light-Water Reactors ATF Project Plan, Version 1.2 Research Information Letter 2021-13, Interpretation of Research on Fuel Fragmentation, Relocation, and Dispersal at High Burnup Communication to industry:
Scheduling Expectations Regarding the Licensing of Accident Tolerant, Increased Enrichment, and Higher Burnup Fuels Numerous workshops and stakeholder engagement throughout last year Recent NRC Actions
We make SAFE use of nuclear technology POSSIBLE.
2022 2023 NRC Activities Timeline 7
RIC Session HBU Workshop III TODAY Additional HBU, IE, and Coated Cladding TRs MAP-12/13 CoC Framatome Doped Pellets NRR Reviews Increased Enrichment Rulemaking Severe Accident PIRT Meetings Other Activities Schedule Expectations Letter Project Plan V1.2 DAHER IE Transportation Package Westinghouse Traveller Type B WEC ADOPT Doped Pellets WEC HBU to 68 GWd/MTU NMSS Reviews Framatome Increased Enrichment
We make SAFE use of nuclear technology POSSIBLE.
ATF Website
- www.nrc.gov/reactors/atf.html
- Routine updates to lists of ATF-related:
- Licensing actions
- Documents
- Public meetings 8
We make SAFE use of nuclear technology POSSIBLE.
If you have additional questions or comments, please contact:
Accident_Tolerant_Fuel@nrc.gov 9