ML24276A172
| ML24276A172 | |
| Person / Time | |
|---|---|
| Site: | 07109374 |
| Issue date: | 08/26/2024 |
| From: | Holtec |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML24276A171 | List: |
| References | |
| EPID L-2024-LLA-0096 | |
| Download: ML24276A172 (1) | |
Text
www.holtecinternational.com
HI-STAR 80 Type B(U)F Transportation Package
Pre-Application Presentation to NRC
August 26th, 2024 Presentation Agenda Introduction Summary of Proposed Changes General Overview Acceptance Criteria Unique to this Amendment Summary and Proposed Licensing Schedule Questions
l Page 2 - Holtec Information Introduction Holtec is preparing to submit a license amendment request application for the HI-STAR 80 Transportation Package The HI-STAR 80 package is currently licensed under Docket No. 71-9374 The HI-STAR 80 is a transport cask engineered to serve as a type B(U)F-96 packaging for transporting radiation material
l Page 3 - Holtec Information Summary of Proposed Changes for the HI-STAR 80 Package Introduction of the F12P-CBS and F32B-CBS basket designs Inclusion of different basket anodization options and corresponding heat loads Increased maximum PWR fuel assembly weight to 800kg Minor adjustments to loading and unloading steps, to incorporate lessons learned, as applicable Lessons learned incorporated as applicable into F12P and F32B (non-CBS) baskets, and cask body drawings
l Page 4 - Holtec Information General Overview General Content - Fuel Packages F12P/F12P-CBS (bare basket) : 12 PWR Fuel Assemblies F32B/F32B-CBS (bare basket) : 32 BWR Fuel Assemblies Principal Package Performance - Fuel Packages Maximum Fuel Package Payload Heat Load: 50 kW (PWR) and 54 kW (BWR)
CBS basket variants will have slightly lower heat loads Leakage rate acceptance criteria based on containment analysis General Content - Non-Fuel Waste Packages Non-Fuel Waste (NFW) in the form of power reactor-related waste in a solid form (up to 5000kg [11023 lbs], total mass of waste and cartridge container up to 5665kg [12489 lbs])
Non-fuel Waste is transported in the Non-fuel Waste Basket (NFWB-1)
Secondary packaging and or Dunnage is permitted with restrictions Principal Package Performance - Non-Fuel Waste Packages Maximum NFW Package Payload Heat Load: 2.0 kW Leakage rate acceptance criteria based on containment analysis
l Page 5 - Holtec Information Design Overview
TOP CONTAINMENT TRUNNIONS UPPER FORGING BOTTOM IMPACT TOP LIMITER IMPACT LIMITER CASK BODY
CASK BODY
CONTAINMENT BOTTOM LOWER TRUNNIONS FORGING
l Page 6 - Holtec Information Structural Safety Overview Chapter 2 of the SAR is expanded with the following qualifications:
Increased weight of PWR fuel assemblies CBS-style baskets
l Page 7 - Holtec Information Thermal Safety Overview Safety Analysis Approach 3-Dimensional thermal models developed ANSYS-Fluent CFD Code Methodology used same as that currently approved in the SAR No changes in cask or impact limiter design All acceptance criteria in the SAR remains unchanged All configurations evaluated
l Page 8 - Holtec Information Containment Safety Overview
HI-STAR 80 cask with CBS baskets has a slightly higher cavity free volume Bounded by non-CBS basket design from containment safety perspective Conclusions from evaluations performed for non-CBS versions also applicable to CBS Versions
Acceptance criteria in the SAR remains unchanged
l Page 9 - Holtec Information Shielding Safety Overview Chapter 5 of the SAR is expanded with the following qualifications:
Increased weight of fuel assemblies CBS-style baskets Assemblies with larger number of steel rods Criticality Safety Overview Criticality analyses were performed to demonstrate that the package with the CBS basket meets all criticality safety requirements
l Page 10 - Holtec Information Acceptance Criteria Unique to this Amendment Structural Minor updates to deflection-based criterion based on lessons learned from HI-STORM FW FSAR Thermal All thermal acceptance criteria in the SAR remains unchanged Containment All containment acceptance criteria in the SAR remains unchanged Shielding All shielding acceptance criteria in the SAR remains unchanged Criticality All criticality acceptance criteria in the SAR remains unchanged
l Page 11 - Holtec Information Summary and Licensing Schedule
Design details, materials and safety analyses approaches are essentially identical to those for HI-STAR and HI-STORM family of casks or based on proven practice and/or techniques which supports an efficient licensing process Planned Submittal September 2024 Request Approval by February 2026
l Page 12 - Holtec Information Questions and Discussion
l Page 13 - Holtec Information