ML18030A944
| ML18030A944 | |
| Person / Time | |
|---|---|
| Site: | 07109261 |
| Issue date: | 01/30/2018 |
| From: | Pierre Saverot Spent Fuel Licensing Branch |
| To: | Hsia A H Division of Spent Fuel Management |
| Saverot P | |
| Shared Package | |
| ML18030A942 | List: |
| References | |
| EPID L-2018-LLA-0001 | |
| Download: ML18030A944 (18) | |
Text
a generation ahead by design HI-STAR 100 Transportation CoC (9261) Amendment 11 HI-STAR 100 Version MB Pre-Submittal Presentation to NRC January 23, 2018 Holtec copyrighted material
a generation ahead by design Agenda *Amendment 11 Proposed Change
- Design Overview HI
-STAR 100MB and Fuel Packages
- Technical disciplines, criteria and methods
-Structural
-Thermal -Shielding -Criticality
-Containment
- Summary and Schedule 2 Holtec copyrighted material
a generation ahead by design HI-STAR 100 Transport CoC (9261) Amd. 11 Proposed Change
- HI-STAR 100 Version MB (HI
-STAR 100MB)
-HI-STAR 100MB is an enhanced version of the HI
-STAR 100 transport package initially licensed by the NRC in 1998.
-Enhancements focus on HBF transportation
-Based on HI
-STAR 190 and HI
-STAR 180/180D
-Same Cavity Inner Diameter as the HI
-STAR 100. -Suitable to transport all currently licensed MPCs for the HI
-STAR 100 -Single Lid (HI
-STAR 190, HI
-STAR 100) and Double Lid (HI
-STAR 180 and 180D) versions
-Two cask length (HI
-STAR 190) *MPC-32M Fuel Package
-32 PWR assembly MPC with a Metamic Basket, enhanced version of the MPC
-32 currently approved -Similar to MPC
-68M for MPC
-68 in the HI
-STORM 100 *F-24M and F-32M Fuel packages
-Bare Metamic Baskets for 24 and 32 PWR assemblies
-Similar to HI
-STAR 180 baskets
- Amendment focusses on approval of those designs 3 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB
- Single Cavity Diameter, compatible with all MPCs currently approved in HI-STAR 100 Docket 71
-9261 *Two Cavity Lengths
-Type XL - Extra Long for MPCs
-Type SL - Short Length for Bare Baskets 4 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Single and Double Lid Designs 5 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Cask Containment
- Standard Holtec Design *Same as HI-STAR 60 , 100 , 180 , 180 D, 190 *Components include: *Containment Shell *Baseplate *Top Forging *Bolted Closure Lids *Double Lid for Bare Basket (Viz , HI-STAR 180 , 180 D) *Single Lid for MPC (Viz, HI-STAR 100 , 190) *Double elastomeric seals for each closure lid *Forgings and Shells connected by welds 6 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Cask Major Shielding Components
- Same shielding design as HI
-STAR 190 -Lead for gamma shielding
-Holtite-B for neutron shielding 7 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Fuel Packages
- Amendment 11 is focused on design approval. Other MPCs currently qualified for the HI
-STAR 100 and/or HI
-STORM 100 will be added in a future amendment 8 Canister/
Basket ID Fuel Type Fuel Package Type Max number of fuel assemblies in the Fuel Package Basket structural Material MPC-32M PWR MPC 32 Metamic-HT F-32M PWR Bare Basket 32 Metamic-HT F-24M PWR Bare Basket 24 Metamic-HT Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Fuel Packages
- F-24M Basket
- F-32M Basket 9 Holtec copyrighted material
a generation ahead by design HI-STAR 100 MB High Burnup Fuel / Moderator Exclusion
- Bare Basket: Approach Identical to that for HI
-STAR 180 and HI
-STAR 180D. -Second bolted lid provides the additional water barrier credited for moderator exclusion under accident conditions.
- MPC: Approach Identical to that for HI
-STAR 190. -MPC lid provides the additional water barrier credited for moderator exclusion under accident conditions.
- Additional safety analyses provide Defense
-in-depth -Fuel rod with degraded material properties under axial load.
-Criticality evaluations assuming fuel reconfigurations.
10 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Structural Criteria, Modeling, Methodology
- Predominantly following HI
-STAR 190 *Acceptance Criteria
-General Criteria: Type B(U)F Provisions of 10CFR71
-Containment Integrity: ASME B&PV Code Division 1 Subsection NB
-Closure Lid Seal Joint: remains "leaktight" under NCT and HAC
-Fuel Basket: Basket deflection based criterion
- Global Avg. permanent deformation of panel below 0.5 mm.
-Shielding Components: Remain functional after impactive events.
-Defense in Depth Fuel Assembly Integrity: Fuel pin evaluation
>Strain Limit of 1.7%: Same as HI
-STAR 180 and further endorsed by NUREG/CR-7198 (2015).
-Impact Limiters: Sufficient energy absorption to protect fuel pins, fuel basket and containment boundary and to maintain attachment to the cask.
11 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Structural Criteria, Modeling, Methodology (Continued)
- Safety Analysis Approach: Same as HI
-STAR 180/180D/190
-FEM (LS-DYNA/ANSYS), Hand Calculations, and Comparative Evaluations
-10CFR71.71 and 10CFR71.73 Dynamic Analysis
>0.3 meter drop (horizontal cask)
>9 meter drop (side, end, slapdown) >1 meter puncture on cask outer closure lid
- top end down and 1 meter puncture on enclosure shell
- side drop -Static Analysis
>Design pressure, lifting, immersion, component stability, fire accident, etc. summarized in SAR with separate supporting report (methodology used previously for HI
-STAR 180,180D and 190) 12 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Thermal Criteria, Modeling, Methodology
- Acceptance Criteria
-Cask Components Temperature Limits are the same as those presented in HI
-STAR 190 SAR -PCT Limits Per ISG
-11, Revision 3
- Safety Analysis Approach
-Same as HI
-STAR 180D/190, ANSYS
-FLUENT CFD Analyses
-For normal conditions of transport, a heat event consisting of an ambient temperature of 38 o C (100 o F) in still air and prescribed insolation is evaluated [
§71.71(c)(1)].
-For normal conditions of transport, a cold event consisting of an ambient temperature
of -40 o C (-40 o F) in still air and shade must be evaluated [
§71.71(c)(2)].
-For hypothetical accident conditions, a thermal event consisting of a fully engulfing hydrocarbon fuel/air fire with an average emissivity coefficient of at least 0.9, with an average flame temperature of at least 802oC(1475 o F) for a period of 30 minutes
[§71.73(c)(4)].
13 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Shielding Criteria, Modeling, Methodology
- Shielding Criteria, Modeling, Methodology
- Acceptance Criteria
-Standard >Normal Conditions of Transportation: 10 CFR 71.51(a)(1) and 71.47(b)
>Hypothetical Accident Conditions: 10 CFR 71.51(a)(2)
- Safety Analysis Approach
-MCNP5 Dose Rate Calculations
-TRITON/ORIGEN/ORIGAMI (Scale 6.21) Source Term Calculations
-Adopted from HI
-STAR 190 and HI
-STAR 80 SAR 14 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Criticality Criteria, Modeling, Methodology
- Acceptance Criteria
-10CFR71.55 and 71.59
-Maximum Keff <= 0.95, including all biases and uncertainties for 95% probability at a 95
-percent confidence level.
- Safety Analysis Approach
-All Monte Carlo calculations performed using MCNP5.
-Utilize ISG
-8 Rev. 3 for Burnup Credit.
-Normal and Accident Conditions analyses same as HI
-STAR 80 and HI
-STAR 190. -Efficiency through referencing HI
-STAR 190 15 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Containment Criteria, Modeling, Methodology
- Acceptance Criteria
-Design and Testing to ANSI N14.5 reference leakage rate of "Leaktight". -Package maintains leaktightness under normal and accident condition events. *Safety Analysis Approach
-Same as HI
-STAR 80, 100 and 190.
-Structural (and thermal) evaluation confirms containment boundary integrity under normal and accident conditions of transport.
16 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Summary
- HI-STAR 100MB is an enhanced version of the HI
-STAR 100 transport package initially licensed by the NRC in 1998, with a main focus on HBF transportation
- Fuel Packages include an MPC and bare baskets
- HI-STAR 100MB and fuel package designs are directly based on current designs approved by US NRC (HI
-STAR 100, 180, 180D, 190). This should allow for an efficient review process.
- Planned Submittal February 2018
17 Holtec copyrighted material
a generation ahead by design HI-STAR 100MB Questions / Discussions Thank you! 18 Holtec copyrighted material