ML21049A333

Memorandum: C. Regan-Meeting Summary February 2021

ML21049A333
Person / Time
Site:	07109388
Issue date:	02/22/2021
From:	Pierre Saverot Storage and Transportation Licensing Branch
To:	Christopher Regan Division of Fuel Management
Saverot P
Shared Package
ML21049A332	List: ML21049A333 ML21049A334
References
EPID L-2020-NEW-0003
Download: ML21049A333 (4)

Text

C. Regan UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 February 22, 2021 MEMORANDUM TO:

Christopher Regan, Deputy Director Division of Fuel Management, NMSS FROM:

Pierre Saverot, Project Manager R/A Storage and Transportation Licensing Branch Division of Fuel Management, NMSS

SUMMARY

OF FEBRUARY 17, 2021 MEETING WITH DAHER NUCLEAR TECHNOLOGIES

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Background===

On February 17, 2021, a Category 1 public meeting was held by video conference between the U.S. Nuclear Regulatory Commission (NRC) staff and representatives from Daher Nuclear Technologies GmbH (DNT) to discuss the licensing approach for a new UF6 package design, DN30-X, for enrichments between 10% and 20%. The first pre-application meeting was held on June 10, 2020.

The February 17, 2021, meeting was noticed on January 12, 2021 (ML21012A194). The meeting attendance list and public presentation are provided as Enclosure Nos. 1 and 2, respectively.

Discussion Recent industry developments such as initiatives for Accident Tolerant Fuel, DOE-NNSA tritium production project, fuel for small modular reactors, as well as high assay low-enriched uranium projects, drive up the need for transportation of UF6 enriched above 5%, i.e., between 10% and 20%, thus the need for a new UF6 package design. The licensing approach selected by DNT consists in designing a new cylinder, the 30B-X cylinder, derived from the ANSI N14.1 30B cylinder but with added criticality control rods. The 30B-X cylinder will fit into the Protective Structural Packaging (PSP) already certified under Docket No. 71-9362. A 30B-10 cylinder (10% enrichment) holds 3527 lbs. of UF6 while a 30B-20 cylinder (20% enrichment) has a capacity of 2756 lbs. of UF6. DNT presented the results of the structural and criticality analyses (including the benchmark evaluation with the TSUNAMI code).

Staff asked if this design is meant to respond to all foreseeable industry needs, or if there may be eventually a need for other designs in future applications. DNT said that their concept, presented at the last PATRAM conference, was well received by industry, that it favors a sound transportation scheme by minimizing the number of shipments due to the high capacity of the 30B-X cylinder, and that it features the same handling needs and tools than for the existing 30B cylinder (identical dimensions and maximum gross weight, identical valve and plug, similar washing/cleaning procedures than for 30B cylinder. There was no question from the public during the public session.

Pierre M.

Saverot Digitally signed by Pierre M. Saverot Date: 2021.02.22 13:33:06 -05'00'

C. Regan The structural and criticality evaluations of the DN30-X package were discussed during the proprietary session. Staff asked a number of questions on (i) the criticality control system (CCS) restraints and their welding, (ii) their modeling and the potential for an uneven distribution of UF6 during actual loading conditions, (iii) the selection of experiments for the criticality analysis and if there had been a similar analysis performed for an unmoderated system. Staff said that part of the focus during the review of the DNT application will be on the validation of the criticality cases with similar benchmarks.

Staff made no regulatory commitment during the meeting.

Docket No. 71-9388 EPID - L-2020-NEW-0003

Enclosures:

1. Meeting Attendees

2. Presentation

C. Regan

SUMMARY

OF FEBRUARY 17, 2021 MEETING WITH DAHER NUCLEAR TECHNOLOGIES DOCUMENT DATED: FEBRUARY 22, 2021 DISTRIBUTION: SFST r/f, A. Kock, ADimitriadis, RI; BDesai, RII; DHills, RIII; GWarnick, RIV G:\\SFST\\Saverot\\71-9388 DN30-X\\meeting summaryFebruary 2021.doc ADAMS Package No.: ML21049A332

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• SFigueroa JMcKirgan DATE 02/18/2021 02/18/2021 02/22/2021 OFFICIAL RECORD COPY

Meeting Between DAHER NUCLEAR TECHNOLOGIES (DNT) and the Nuclear Regulatory Commission February 17, 2021 Meeting Attendees NRC/NMSS/DSFM Pierre Saverot Andrew Barto Jonathan Marcano John McKirgan Marilyn Diaz Tom Boyce Bernard White DNT Yara van Wijk Maik Hennebach Franz Hilbert Sebastian Fels DOT Richard Boyle Mike Conroy URENCO Wyatt Patchett Joel Kruehler PUBLIC Benjamin Holtzman (NEI)

Lance Sterling (Certrec Corporation)