ML24099A214
| ML24099A214 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 04/10/2024 |
| From: | Florida Power & Light Co |
| To: | Natreon Jordan NRC/NRR/DORL/LPL2-2 |
| Jordan N | |
| References | |
| EPID L-2024-LRM-003 | |
| Download: ML24099A214 (1) | |
Text
Non-proprietary information suitable for public disclosure 1
St. Lucie Unit 2 License Amendment Requests for Transition to 24-Month Cycles April 10, 2024
Non-proprietary information suitable for public disclosure 2
FPL Project Team Emilio Fuentes Rob Norring Yacine Faouzi Wendy Zumbo Jarrett Mack Director Fuel Engineering Manager Fuel Engineering Project Manager, St. Lucie Design Engineering Fleet Licensing Framatome and Westinghouse Project Support
Non-proprietary information suitable for public disclosure 3
Meeting Agenda Objectives Proposed Licensing Actions Methodology & Approach
- Fuel Methods LAR
- Implementation LAR Project Status Proposed Schedule Questions
Non-proprietary information suitable for public disclosure 4
Provide overview of FPLs plan to transition St. Lucie Unit 2 to 24-Month Fuel Cycles
- Scope and content
- Schedule Obtain NRC feedback
- LAR Content
- Proposed schedule / NRC resource planning Objectives
Non-proprietary information suitable for public disclosure 5
Spent Fuel Pool Criticality License Amendment Request
- Nov 2023 pre-submittal meeting held
- LAR submittal scheduled April 2024 Fuel Methodology License Amendment Request
- Fuel Methodology changes and supporting justifications
- Conforming changes to Tech Spec, Bases, TRM, and COLR
- No significant fuel design changes 24-Month Cycle Implementation License Amendment Request
- Change Surveillance Requirement (SR) Frequency using GL 91-04 guidance for non-calibration SRs and calibration SRs (including instrument drift) as the main LAR enclosure
- Potential for one or more additional implementation topics as separate LAR enclosures Proposed Licensing Actions The LARs are not linked
Non-proprietary information suitable for public disclosure 6
Methodology & Approach - Fuel Methods LAR LOCA Re-analyses Upgrade to latest Framatome NRC-approved methodologies
- Large Break LOCA methodology to EMF-2103P-A Revision 3, Realistic Large Break LOCA Methodology for Pressurized Water Reactors
- Small Break LOCA methodology to EMF-2328(P)(A) Revision 0 and Supplement 1(P)(A) Revision 0, PWR Small Break LOCA Evaluation Model, S-RELAP5 Based Implement GALILEO fuel rod model via ANP-10349P-A Rev. 0, GALILEO Implementation in LOCA Methods
- Modern fuel performance code with TCD treatment replacing RODEX2
Non-proprietary information suitable for public disclosure 7
Methodology & Approach - Fuel Methods LAR Non-LOCA Safety Re-analysis Technical evaluations for UFSAR Chapter 15 Non-LOCA analyses
- Upgrade methodology to ANP-10339P-A ARITA - ARTEMIS/RELAP Integrated Transient Analysis Methodology Modern code package improves modeling fidelity
- Upgrade low flow/low pressure CHF correlation for MSLB to ANP-10311, Rev. 1 Supplement 1P-A, Rev. 0, ORFEO-HMP Critical Heat Flux Correlation Modern CHF correlation Only events affected by the 24-month cycle conditions analyzed with ANP-10339P-A methods at this time
- UFSAR 15.1.6 post-scram MSLB event analyzed with current EMF-2310P-A method due to ongoing discussions with NRC about L&Cs LAR will include a single demonstration analysis with advance methods of the UFSAR 15.1.3 Increase in Steam Flow event
Non-proprietary information suitable for public disclosure 8
Methodology & Approach - Fuel Methods LAR Other Fuel Methodology Upgrades Use all NRC-approved methodologies CEA Ejection
- ANP-10338P-A, Rev. 0, AREA'- ARCADIA Rod Ejection Accident Fuel Mechanical Seismic/LOCA
- ANP-10337P-A, Rev. 0, PWR Fuel Assembly Structural Response to Externally Applied Dynamic Excitations Fuel Performance
- BAW-10323P-A, Rev. 1, GALILEO Fuel Rod Thermal-Mechanical Methodology for Pressurized Water Reactors
- ANP-10227P-A, Rev. 2, Evaluation of Advanced Cladding and Structural Material (M5) in PWR Reactor Fuel Thermal-Hydraulics
- ANP-10311P-A, Revision 1 COBRA-FLX: A Core Thermal-Hydraulic Analysis Code
Non-proprietary information suitable for public disclosure 9
Methodology & Approach - Fuel Methods LAR Other Fuel Methodology Upgrades (continued)
Neutronics
- ANP-10297, Rev. 0, Supplement 1P-A, Rev. 1, The ARCADIA Reactor Analysis System for PWRs Methodology Description and Benchmarking Results Other methodologies, CHF correlations, and Topical Reports already approved for use at St. Lucie Topical Report L&Cs will be addressed in the applicable Licensing Reports
Non-proprietary information suitable for public disclosure 10 Extend Surveillance Frequencies to support a 24-month cycle
- GL 91-04 guidance used for calibration and non-calibration Frequencies Drift analysis being performed where required Setpoints are being verified, methodology based on RG 1.105, Revision 3 Evaluations considered TS Section 5.5 Programs as needed Some SRs are performed on a Staggered Test Basis Some SRs were previously extended to 2 or more cycles These are evaluated for the cycle extension and the SR 3.0.2 allowance (25%)
Methodology & Approach - Implementation LAR
Non-proprietary information suitable for public disclosure 11 Additional Implementation Topic Enclosures
- Currently evaluating boron concentration ranges in Refueling Water Tank, Safety Injection Tanks, and Boric Acid Make-up Tanks surveillances to ensure consistency between ECCS and Shutdown Margin requirements.
Methodology & Approach - Implementation LAR
Non-proprietary information suitable for public disclosure 12 Project Kickoff November 2021 Criticality LAR nearing submittal Fuel Methodology LAR
- Most work complete, Licensing Reports in progress
- Remaining work expected to be completed and available for audit by time of submittal 24-Month Cycle Implementation LAR
- Work in progress, no additional items requiring NRC approval identified to date
- Remaining work expected to be completed and available for audit by time of submittal Project Status
Non-proprietary information suitable for public disclosure 13 Proposed Schedule April 2024 Submit Unit 2 SFP Criticality LAR July 2024 November 2024 Submit Unit 2 Fuel Methodology LAR Submit Unit 2 24-Month Cycle Implementation LAR June 2025 Requested Approval for SFP Criticality LAR August 2025 December 2025 Requested Approval for Fuel Methodology LAR Requested Approval for 24-Month Cycle Implementation LAR Unit 1 schedule follows by roughly 1 year Spring 2026 24-Month Fuel Cycle Implementation for Unit 2 Spring 2027 24-Month Fuel Cycle Implementation for Unit 1
Non-proprietary information suitable for public disclosure 14 Questions?