ML24023A577
| ML24023A577 | |
| Person / Time | |
|---|---|
| Issue date: | 01/30/2024 |
| From: | King D Licensing Processes Branch |
| To: | Gerond George Licensing Processes Branch |
| References | |
| Download: ML24023A577 (1) | |
Text
January 30, 2024 MEMORANDUM TO:
Gerond A. George, Chief Licensing Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Daniel G. King, ATF Project Manager /RA/
Licensing Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
SUMMARY
OF THE JANUARY 19, 2024, PHENOMENON IDENTIFICATION AND RANKING TABLE PANEL FOLLOW-UP DISCUSSION ON HIGH BURNUP FUEL DISPERSAL AND ITS CONSEQUENCES PUBLIC MEETING On January 19, 2024, the U.S. Nuclear Regulatory Commission (NRC) staff and Information System Laboratories, Inc. (ISL) held a hybrid phenomenon identification and ranking table (PIRT) panel public meeting with representatives from the nuclear industry to discuss high burnup uranium dioxide fuel fragmentation, relocation, and dispersal. The purpose of the meeting was to provide a follow-up to the December 2023 PIRT panel meeting (Agencywide Documents and Management System (ADAMS) Accession No. ML23352A274), to ask questions of the NRC staff or make comments about issues related to the scope of the PIRT. The meeting notice can be found in the ADAMS under Accession No. ML24017A004.
Key observations from the meeting discussions:
The PIRT panelists agreed that the fuel particle size distribution is a key phenomenon that influences fuel dispersal during a loss-of-coolant accident (LOCA).
The panelists agreed that the mechanisms leading to transient fission gas release and high burnup fuel dispersal during a LOCA would not be active during a fuel handling accident.
Fuel dispersal is likely not a concern during a reactivity-initiated accident; however, panelists need more time to develop and finalize their rankings of phenomena for this type of accident.
Contact:
Daniel G. King, NRR/DORL/LLPB 301-415-1233 James Corson, RES/DSA/FSCB 301-415-2458
The following schedule going forward was agree upon by the NRC staff, ISL, and panelists.
Note that the panelists will be performing their own rankings individually with a consolidated table being constructed in January 2024.
January 2024 Panel members complete ranking remaining phenomena, individually.
February 2024 ISL distribute draft report capturing outcomes to NRC staff and panelists for comment.
February 2024 ISL submits draft final report to NRC for publication.
No comments were received during the public comment portion of the meeting. Additional information on Accident Tolerant Fuel PIRTs can be found at:
https://www.nrc.gov/reactors/power/atf/pirt.html No regulatory decisions were made in the meeting.
Enclosure:
List of Attendees
Enclosure List of Attendees PHENOMENON IDENTIFICATION AND RANKING TABLE PANEL FOLLOW-UP DISCUSSION ON HIGH BURNUP FUEL DISPERSAL AND ITS CONSEQUENCES PUBLIC MEETING January 19, 2024 U.S. Nuclear Regulatory Commission (NRC)
First Name Last Name Steve Bajorek Andrew Bielen Philip Benavides Kristy Bucholtz Shawn Campbell Alice Chung James Corson Vic Cusumano David Garmon Gerond George Victor Hall Daniel King Joseph Messina Ashley Smith Ted Smith Joseph Staudenmeier Josh Whitman Non-NRC First Name Last Name Organization (if provided)
Colleen Armoruso Information System Laboratories (ISL)
Carl Beyer Pacific Northwest National Laboratory Jana Bergman Francis Bolger Electric Power Research Institute (EPRI)
Nathan Capps Oak Ridge National Laboratory Kris Cummings NuScale Power Dave Kropaczek Veracity Nuclear Wade Marcum Oregon State University Kurshad Muftuoglu EPRI Vesselin Palazov ISL H.
Scott Charlyne Smith Gretar Tryggvason Johns Hopkins University Jason Williams ISL Gordo Wissinger Framatome Inc. (Framatome)
Note: Attendance list based on Microsoft Teams participant list and in person attendee sign in sheet. This list does not include individuals who did not provide their last name either in registering for the meeting or by a follow-up email.
ML24023A577 (Meeting Summary)
OFFICE NRR/DORL/LLPB/PM RES/DSA/FSCB NRR/DORL/LLPB/LA RES/DSA/FSCB/BC NAME DKing JCorson DHarrison HEsmaili DATE 1/24/2024 1/24/2024 1/26/2024 1/26/2024 OFFICE NRR/DORL/LLPB/BC NRR/DORL/LLPB/PM NAME GGeorge DKing DATE 1/30/2024 1/30/2024