ML22245A027
| ML22245A027 | |
| Person / Time | |
|---|---|
| Site: | 07109309 |
| Issue date: | 09/07/2022 |
| From: | Global Nuclear Fuel |
| To: | Document Control Desk, Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML22245A025 | List: |
| References | |
| M220115 | |
| Download: ML22245A027 (12) | |
Text
Global Nuclear Fuel
RAJ-II Safety Analysis Report Amendment Pre-submittal Meeting September 7, 2022
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Agenda
- Purpose - Expand Existing RAJ-II Safety Basis (public)
- Description of the requested additional payload and SAR amendment (public)
- Overview of SAR Changes (non-public)
- Overview of Proposed CoC Changes (non-public)
- Timeline (non-public)
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Purpose
Introduce and provide NRC with technical information regarding an amendment for Revision 11 of the Safety Analysis Report (SAR) to expand payload content parameters of the RAJ-II container, Certificate of Compliance (CoC) 9309.
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Summary of RAJ-II SAR Amendment
- No package or hardware modifications.
- Increase allowed Uranium-235 (U-235) enrichment up to 8 wt. 0/o for GNF 1 Ox1 0 fuel bundle and loose light water rod contents.
- New content will be introduced as an amendment to the RAJ-II SAR.
- Minor administrative SAR updates will also be provided.
- A proposed RAJ-II CoC mark-up will be provided as part of the amendment submittal.
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6 LEU+ Contents
Low Enriched Uranium Plus (LEU+)
Increase in allowed maximum U-235 content
- Current RAJ-II CoC 9309 Rev.12 allows:
- 5.00 X 1 o-2 g/gU
- RAJ-II SAR NEDE-33869 Rev. 11 Amendment requests:
- 8.00 X 1 o-2 g/gU
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Changes by Chapter
Chapters 1, 2, 3, 7, 8
- Updates to incorporate new LEU+ contents Chapter 4
- Updated leak rate calculation and evaluation based on LEU+ contents
Chapter 5
- Updated shielding calculation and evaluation based on LEU+ contents r
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Chapter 6
General Changes
Minimalistic Approach
- Supporting calculations are performed to ensure criticality safety
- If the current conclusions in the subsections of Chapter 6 hold, no update to the section is made r
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Chapter 6
Fuel Assembly Loading Criteria (SAR Table 6-1)
- Increase in minimum number of gad rods in the 5 - 8 wt. 0/o U-235 range
- Determination of lattice enrichment for a CSI 1.6 with no gadolinia
Loose Rods
- Confirming the number of LEU+ rods for safe shipment
r Globa l Nuclear IFue l 10 Chapter 6
Validation
- No update is made to the SCALE 6.1 & KENO-VI validation as it already covers the 5 - 8 wt. 0/o U-235 range
SCALE User Notices
- Notice regarding h-poly: Clarification is made that all polyethylene is modelled as poly(h2o)
- Notice regarding SCALE 6.2.2 - 6.2.4 with KENO-V:
Not applicable as SCALE 6.1 & KENO-VI are used r
Globa l Nuclear IFue l 11 Proposed CoC Changes
- Update to the revisions of some RAJ-II drawings
- Authorized contents for 8 wt 0/o fuel
- Allowance of up to 8 wt 0/o for GNF 1 Ox1 0 fuel
- Gadolinia requirements for the 5 - 8 wt. 0/o U-235 range
- Addition to maximum quantity of material per package
- Clarification of CSI and applicable contents
- Administrative updates r
Globa l Nuclear IFue l 12 Submittal Schedule
- GNF-A plans to submit RAJ-II SAR, Revision 11, amendment request in the 3rd quarter 2022.
- NRC approval is requested within one year after submittal.
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