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MONTHYEARML21141A0102021-05-21021 May 2021 La Salle County Station, Units 1 and 2, May 27, 2021 Pre Submission Public Meeting Slides (EPID-L-2021-LRM-0052) Project stage: Meeting ML21187A2992021-07-0808 July 2021 Summary of May 27, 2021 Public Pre-Submittal Webinar with Exelon Generation Company, LLC Regarding Proposed License Amendment Requests Associated with Transition to New Fuel at LaSalle County Station, Units 1 and 2 and Quad Cities Nuclear P Project stage: Other 2021-05-21
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Category:Meeting Briefing Package/Handouts
MONTHYEARML24029A1742024-01-30030 January 2024 Constellation Pre-Application January 30, 2024, Meeting Slides - Proposed Alternative to Utilize Code Case N-932, Alternative Requirements for Acceptance of Containment Base Metal Corrosion or Erosion ML23317A0712023-11-14014 November 2023 NRC Pre-Submittal Meeting on November 14th, 2023 - TSTF-591 and Selected 50.69 License Condition Updates (EPID L-2023-LLM-0098) (Slides) ML23255A1042023-08-11011 August 2023 Slides - Constellation - Pre-Application EP 9/18/2023 Draft CEG Presubmittal SG Performance Monitoring Plan Meeting Handout ML22311A5112022-11-0707 November 2022 Pool Swell License - Amendment Request ML21314A4472021-11-10010 November 2021 Slides for Presubmittial Meeting for Proposed Alternative to Adopt ASME Code Case N-921 to Extend the Inservice Inspection Interval ML21194A1582021-07-13013 July 2021 and Lasalle Nuclear Generating Stations 2020 Annual Assessment Meeting Slides ML21141A0102021-05-21021 May 2021 La Salle County Station, Units 1 and 2, May 27, 2021 Pre Submission Public Meeting Slides (EPID-L-2021-LRM-0052) ML20261G7322020-09-16016 September 2020 Pre-Submittal Slides Extend 120-month Isi/Ist Interval Under 50.55a ML20238B8662020-08-25025 August 2020 Hq Online EOC Slides ML20178A4202020-06-30030 June 2020 NEI Slides for June 30, 2020, Public Meeting on COVID-19 Response ML20170B0212020-06-23023 June 2020 NRC Pre-Submittal Meeting Byron Unit 2 One-Time Deferral of Reactor Pressure Vessel Head Penetration Nozzle (Rpvhpn) Inspections ML20169A5592020-06-16016 June 2020 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections (Rev 1) ML20163A6552020-06-16016 June 2020 6-16-20 Byron Unit 2 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections ML19318F9512019-11-20020 November 2019 Presentation Slides for November 20, 2019, Pre-Application Meeting - Request for Revision to Quality Assurance Program Internal Audit Frequency ML19161A2572019-06-0404 June 2019 BWR Fleet Msv/Srv - Testing Frequency Relief Request NRC Pre-Application Meeting June 4, 2019 ML19151A6602019-05-31031 May 2019 BWR Fleet Mssv/Srv Testing Frequency Relief Request NRC Pre-Application Meeting June 4, 2019 ML19022A2002019-01-23023 January 2019 Request for Use of ASME Code Case N-879 for Exelon Nuclear Power Plants ML18347B3142018-12-19019 December 2018 Bwrvip/Asme Relief Request Discussion December 19, 2018 ML18334A2162018-11-30030 November 2018 Presentation Slides: Exelon BWR MSIV (Boiling-Water Reactor - Main Steam Isolation Valve) Leakage Optimization for NRC Pre-Submittal Meeting of December 6, 2018 ML18319A1272018-11-19019 November 2018 Slides for 11/19/18 Public Meeting - Exelon Fleet LAR for Common Language for TS 5.7 High Radiation Areas ML18054B3592018-02-27027 February 2018 Slide: NRC Pre-Submittal Meeting for Exelon Fleet LAR to Relocate TS Unit Staff Qualification ANSI Requirements to the QATR, February 27, 2018, Profile Info: Submitted by Frank Mascitelli ML17142A2382017-05-25025 May 2017 OEDO-17-00280 - Briefing Package for Drop-In Visit on June 9, 2017, by Senior Management of Exelon Generation Company, LLC with Chairman Svinicki, Commissioner Baran, and Commissioner Burns ML16194A0062016-07-12012 July 2016 Pre-Application Meeting Presentation Regarding LaSalle County Station License Amendment Request for Revision of Suppression Pool Swell Design Analysis ML16077A1562016-03-22022 March 2016 Fleet: Pre-application Teleconference with Exelon to Discuss a Potential License Amendment Request Regarding Operating Training Standards ML16077A3492016-03-17017 March 2016 NRC Briefing Slides for LaSalle Dseis Public Meeting March 22, 2016 ML16075A3292016-03-16016 March 2016 OEDO-16-00165 - Briefing Package for Drop-In Visit on March 23, 2016, by Senior Management of Exelon Generation Company, LLC with the NRC Executive Director for Operations ML15062A3642015-03-0303 March 2015 Environmental Scoping Briefing for March 10th Meetings ML15058A6322015-02-27027 February 2015 LSCS Scoping Briefing Prepared 2-27-15 for March 10th Meeting ML13212A3372013-07-31031 July 2013 NRC NEI-01-01 Meeting Presentation on 7/31/13 Digital I&C Meeting NEI 01-01, NRC NEI-01-01 Meeting Presentation on 7/31/13 Digital I&C Meeting2013-07-31031 July 2013 NRC NEI-01-01 Meeting Presentation on 7/31/13 Digital I&C Meeting ML13211A3782013-07-30030 July 2013 7/31/2013 NRC Public Meeting Presentation on NEI 01-01 NEI 01-01, 7/31/2013 NRC Public Meeting Presentation on NEI 01-012013-07-30030 July 2013 7/31/2013 NRC Public Meeting Presentation on NEI 01-01 ML13164A3792013-06-24024 June 2013 Summary of Public Meeting with Exelon Generation Company, LLC, Regarding the Proposed Extended Power Uprate License Amendment Request for LaSalle County Station, Units 1 and 2 ML12159A2662012-06-11011 June 2012 County Generating Station Pre-Application Meeting Extended Power Uprate: Replacement Steam Dryers. June 11, 2012 ML12130A0442012-06-0707 June 2012 Summary of Public Meeting with Exelon Generation Company, LLC, Regarding Proposed Extended Power Uprate License Amendment Request for LaSalle County Station, Units 1 and 2 ML1209306162012-04-0202 April 2012 Enclosure - 04/04/2012 Exelon Nuclear Meeting Presentation LaSalle Count Station Pre-Application Meeting Extended Power Uprate. ML1209006542012-03-30030 March 2012 Slides for April 4 Public Meeting on LaSalle Extended Power Uprate ML1208701402012-03-27027 March 2012 Licensee Slides for Exelon Fleet Pre-Submittal Public Meeting 4-10-12 Licensed Operator Eligibility Requirements LAR ML1208806542012-03-27027 March 2012 Non-Proprietary Slides for LaSalle Prnm Meeting ML1200303212012-01-19019 January 2012 12/7/2011 - Summary of Public Meeting with Exelon Regarding the Proposed Extended Power Uprate License Amendment Request for LaSalle, Units 1 and 2 ML13014A1002011-09-12012 September 2011 Sprinkler Clogging LaSalle Exelon - Presentation During September 2011 NEI Fire Protection Information Forum RS-11-096, Intent to Submit License Amendment Request to Install Power Range Neutron Monitor (Prnm) in Accordance with Interim Staff Guidance, Digital I & C-ISG-062011-06-0707 June 2011 Intent to Submit License Amendment Request to Install Power Range Neutron Monitor (Prnm) in Accordance with Interim Staff Guidance, Digital I & C-ISG-06 ML1100502552011-01-17017 January 2011 December 29, 2010, Summary of Public Conference Call with Exelon Generation Company, LLC, Regarding LaSalle Netco Insert Request ML1100503592010-12-29029 December 2010 NRC Meeting Slides for December 29, 2010, Public Conference Call with Exelon Generation Company Regarding LaSalle Netco Insert Request ML1030903782010-11-19019 November 2010 Licensee Handouts for LaSalle Meeting with Exelon to Discuss Netco Inserts ML1030704842010-11-19019 November 2010 Summary of Public Meeting with Exelon Generation Company, LLC Regarding LaSalle Netco Insert Request ML1032601422010-11-10010 November 2010 Handouts for November 10, 2010 Public Conference Call with Exelon Regarding LaSalle Insert Request ML0919803632009-08-20020 August 2009 Summary of Licensing Counterparts Meeting with Exelon Generation Company, to Discuss Licensing Practices and Processes ML0917502262009-07-0707 July 2009 Summary of Pre-Application Meeting with Exelon Generation Company, License Amendment Request for LaSalle and Limerick Measurement Uncertainty Recapture Power Uprates ML0911102662009-04-16016 April 2009 LaSalle Summary Meeting Slides 2024-01-30
[Table view] Category:Slides and Viewgraphs
MONTHYEARML24029A1742024-01-30030 January 2024 Constellation Pre-Application January 30, 2024, Meeting Slides - Proposed Alternative to Utilize Code Case N-932, Alternative Requirements for Acceptance of Containment Base Metal Corrosion or Erosion ML23317A0712023-11-14014 November 2023 NRC Pre-Submittal Meeting on November 14th, 2023 - TSTF-591 and Selected 50.69 License Condition Updates (EPID L-2023-LLM-0098) (Slides) ML23255A1042023-08-11011 August 2023 Slides - Constellation - Pre-Application EP 9/18/2023 Draft CEG Presubmittal SG Performance Monitoring Plan Meeting Handout NEI 99-01, Slides - Constellation - Pre-Application EP 2/23/2023 Meeting Slides2023-02-21021 February 2023 Slides - Constellation - Pre-Application EP 2/23/2023 Meeting Slides ML22311A5112022-11-0707 November 2022 Pool Swell License - Amendment Request ML21314A4472021-11-10010 November 2021 Slides for Presubmittial Meeting for Proposed Alternative to Adopt ASME Code Case N-921 to Extend the Inservice Inspection Interval ML21194A1582021-07-13013 July 2021 and Lasalle Nuclear Generating Stations 2020 Annual Assessment Meeting Slides ML21162A3322021-06-11011 June 2021 BWR Fleet Relief Request Associated with RPV Instrument Nozzle Repairs ML21141A0102021-05-21021 May 2021 La Salle County Station, Units 1 and 2, May 27, 2021 Pre Submission Public Meeting Slides (EPID-L-2021-LRM-0052) ML20261G7322020-09-16016 September 2020 Pre-Submittal Slides Extend 120-month Isi/Ist Interval Under 50.55a ML20238B8662020-08-25025 August 2020 Hq Online EOC Slides ML20178A4202020-06-30030 June 2020 NEI Slides for June 30, 2020, Public Meeting on COVID-19 Response ML20170B0212020-06-23023 June 2020 NRC Pre-Submittal Meeting Byron Unit 2 One-Time Deferral of Reactor Pressure Vessel Head Penetration Nozzle (Rpvhpn) Inspections ML20163A6552020-06-16016 June 2020 6-16-20 Byron Unit 2 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections ML20169A5592020-06-16016 June 2020 Steam Generator License Amendment Request Pre-Submittal Meeting (NRC) - Byron Unit 2 LAR for One-Time Deferral of Steam Generator Inspections (Rev 1) ML18347B3142018-12-19019 December 2018 Bwrvip/Asme Relief Request Discussion December 19, 2018 ML18334A2162018-11-30030 November 2018 Presentation Slides: Exelon BWR MSIV (Boiling-Water Reactor - Main Steam Isolation Valve) Leakage Optimization for NRC Pre-Submittal Meeting of December 6, 2018 ML18319A1272018-11-19019 November 2018 Slides for 11/19/18 Public Meeting - Exelon Fleet LAR for Common Language for TS 5.7 High Radiation Areas ML18054B3592018-02-27027 February 2018 Slide: NRC Pre-Submittal Meeting for Exelon Fleet LAR to Relocate TS Unit Staff Qualification ANSI Requirements to the QATR, February 27, 2018, Profile Info: Submitted by Frank Mascitelli ML17339A1812017-12-0707 December 2017 NRC Hq Pre-Submittal LaSalle CSCS LAR 12-7-2017 Final ML16194A0062016-07-12012 July 2016 Pre-Application Meeting Presentation Regarding LaSalle County Station License Amendment Request for Revision of Suppression Pool Swell Design Analysis ML16077A1562016-03-22022 March 2016 Fleet: Pre-application Teleconference with Exelon to Discuss a Potential License Amendment Request Regarding Operating Training Standards ML16077A3492016-03-17017 March 2016 NRC Briefing Slides for LaSalle Dseis Public Meeting March 22, 2016 ML15062A3642015-03-0303 March 2015 Environmental Scoping Briefing for March 10th Meetings ML15058A6322015-02-27027 February 2015 LSCS Scoping Briefing Prepared 2-27-15 for March 10th Meeting ML13212A3372013-07-31031 July 2013 NRC NEI-01-01 Meeting Presentation on 7/31/13 Digital I&C Meeting NEI 01-01, NRC NEI-01-01 Meeting Presentation on 7/31/13 Digital I&C Meeting2013-07-31031 July 2013 NRC NEI-01-01 Meeting Presentation on 7/31/13 Digital I&C Meeting ML13211A3782013-07-30030 July 2013 7/31/2013 NRC Public Meeting Presentation on NEI 01-01 NEI 01-01, 7/31/2013 NRC Public Meeting Presentation on NEI 01-012013-07-30030 July 2013 7/31/2013 NRC Public Meeting Presentation on NEI 01-01 ML13164A3792013-06-24024 June 2013 Summary of Public Meeting with Exelon Generation Company, LLC, Regarding the Proposed Extended Power Uprate License Amendment Request for LaSalle County Station, Units 1 and 2 ML12200A3652012-07-27027 July 2012 County Station UHS Pre-Application Mtg 6-28-12 - Final ML12188A5122012-07-0606 July 2012 IEMA HAB Lessons Learned_rev1 ML12159A2662012-06-11011 June 2012 County Generating Station Pre-Application Meeting Extended Power Uprate: Replacement Steam Dryers. June 11, 2012 ML12130A0442012-06-0707 June 2012 Summary of Public Meeting with Exelon Generation Company, LLC, Regarding Proposed Extended Power Uprate License Amendment Request for LaSalle County Station, Units 1 and 2 ML1209306162012-04-0202 April 2012 Enclosure - 04/04/2012 Exelon Nuclear Meeting Presentation LaSalle Count Station Pre-Application Meeting Extended Power Uprate. ML1209006542012-03-30030 March 2012 Slides for April 4 Public Meeting on LaSalle Extended Power Uprate ML1208701402012-03-27027 March 2012 Licensee Slides for Exelon Fleet Pre-Submittal Public Meeting 4-10-12 Licensed Operator Eligibility Requirements LAR ML1208806542012-03-27027 March 2012 Non-Proprietary Slides for LaSalle Prnm Meeting ML1200303212012-01-19019 January 2012 12/7/2011 - Summary of Public Meeting with Exelon Regarding the Proposed Extended Power Uprate License Amendment Request for LaSalle, Units 1 and 2 ML13014A1002011-09-12012 September 2011 Sprinkler Clogging LaSalle Exelon - Presentation During September 2011 NEI Fire Protection Information Forum ML11201A2132011-07-20020 July 2011 Summary of Public Meeting to Discuss Exelon'S Plans for Implementing an Electronic Document Control System (Edocs) for Use by NRC Inspectors with U.S. Nuclear Regulatory Commission (NRC) Region III Staff ML1100502552011-01-17017 January 2011 December 29, 2010, Summary of Public Conference Call with Exelon Generation Company, LLC, Regarding LaSalle Netco Insert Request ML1100503592010-12-29029 December 2010 NRC Meeting Slides for December 29, 2010, Public Conference Call with Exelon Generation Company Regarding LaSalle Netco Insert Request ML1030704842010-11-19019 November 2010 Summary of Public Meeting with Exelon Generation Company, LLC Regarding LaSalle Netco Insert Request ML1030903782010-11-19019 November 2010 Licensee Handouts for LaSalle Meeting with Exelon to Discuss Netco Inserts ML1032601422010-11-10010 November 2010 Handouts for November 10, 2010 Public Conference Call with Exelon Regarding LaSalle Insert Request ML0929400522009-10-22022 October 2009 Meeting Power Uprate Meeting Slides ML0917502262009-07-0707 July 2009 Summary of Pre-Application Meeting with Exelon Generation Company, License Amendment Request for LaSalle and Limerick Measurement Uncertainty Recapture Power Uprates ML0911102662009-04-16016 April 2009 LaSalle Summary Meeting Slides ML0909005022009-04-0909 April 2009 Meeting Summary of Pre-application Meeting with Exelon on License Amendment Request for Automatic Depressurization System for LaSalle 2024-01-30
[Table view] |
Text
New Fuel Type and Vendor for LaSalle and Quad Cities NRC Pre-Submittal Meeting May 27, 2021
Agenda
- Project Purpose / Background Information
- Overview of Proposed Licensing Amendment Requests (LARs)
- Criticality Safety Analysis Methodology Change (LaSalle, Quad Cities)
- Vendor Transition now using GNF Methods (Quad Cities)
- Improved Scram Speeds (Quad Cities)
- Licensing Schedule and Outage Needs
Meeting Objectives
- Present information to NRC to enable a clear understanding of the overall projects and proposed site-specific LAR submittals
- Obtain feedback from the NRC on the proposed LARs to ensure initial submittals address the full desired scope of topics and thus minimize the need for future RAIs
- Mutual understanding of the proposed schedule and corresponding outage need date in order to ensure adequate NRC resource availability 2
Project Purpose/Background Information Exelon is transitioning all BWRs in the fleet (except NMP1) to GNFs latest fuel design, GNF3.
- Plants currently licensed to GNF methods are covered under the 50.59 process.
- Quad Cities is not currently licensed to GNF methods; thus, the vendor transition requires a LAR.
In conjunction with the fuel type change, there is a plan to change the criticality safety analysis methodology at LaSalle and Quad Cities.
The topical reports referenced in this presentation, except for GESTAR II, have not been previously approved by the NRC.
Planned LAR Submittals LaSalle:
- 1. Criticality Safety Analysis Methodology Change and Admin. Controls Update Quad Cities:
- 1. Criticality Safety Analysis Methodology Change
- 2. Vendor Transition now using GNF Methods
- 3. Improved Scram Speeds 3
Overview- CSA Methodology Change
Purpose:
Align criticality safety analysis (CSA) methodology with fuel vendor to optimize core design
- GNF performed criticality safety analysis for GNF3 fuel and a legacy bounding bundle per NEI 12-16 guidance
- Planned changes in analysis methodology
- New fuel vault is now covered through GESTAR II compliance for the GNF3 fuel 4
CSA Methodology Change and Admin. Controls Update -
LaSalle Spent Fuel Pool Criticality Safety Analysis (NEDC-33931P)
- Utilize GNF methodology to analyze GNF3 fuel and bound all legacy fuel stored in LaSalles spent fuel pools New Fuel Vault Criticality Safety Analysis (NEDE-24011-P-A)
- Utilize GESTAR II methodology for validating new fuel vault (NFV) criticality safety for GNF3 fuel stored in GE-designed NFV racks.
Technical Specification (TS) Section 4.3.1.1
LaSalle Proposed TS 4.3.1.1 Change 6
LaSalle Proposed TS 5.6.5.b Change 7
LaSalle Proposed TS 5.6.5.b Change (cont.)
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CSA Methodology Change - Quad Cities Spent Fuel Pool Criticality Safety Analysis (NEDC-33932P)
- Utilize GNF methodology to analyze GNF3 fuel and all legacy fuel stored in Quad Cities spent fuel pools New Fuel Vault Criticality Safety Analysis (NEDE-24011-P-A)
- Revise TS 4.3.1.1.c to change the governing kinf limit structure according to the new CSA basis 9
Quad Cities Proposed TS 4.3.1.1 Change 10
Overview - Vendor Transition to GNF Methods at Quad Cities
Purpose:
Capture impacts due to change in reload fuel type that require NRC review.
- Exelon does not intend to submit mock reload results
- Transition and equilibrium cycles will be crediting GESTAR II as the licensing basis for reloads that contain GNF3 fuel. No deviations from standard GNF methods will be taken.
- Technical Scope of LAR
- GNF developed the GEXL98 critical power correlation for ATRIUM 10XM fuel
- Exelon revised the AST calculations to incorporate the GNF3 fuel type
- Environmental Qualification impacts
- Framatome used RODEX2A + TCD penalties methodology to develop thermal-mechanical limits for ATRIUM 10XM fuel 11
Vendor Transition to GNF Methods at Quad Cities (contd)
GEXL98 Correlation (NEDC-33930P)
- Quad Cities intends to use GNF methodologies to determine overall core operating limits for cycles containing GNF3 fuel. This change requires an additional analytical critical power (CP) correlation for analyzing the Framatome ATRIUM 10XM fuel with the GNF methodology.
- GEXL98 CP correlation uses the same functional form as previous GEXL correlations.
- Total uncertainty in the GEXL98 correlation predictions for ATRIUM 10XM fuel is similar to the NRC-approved total uncertainty for GEXL96 correlation predictions for ATRIUM-9B fuel.
- Small extrapolations of the GEXL98 correlations range of application do not involve significant increase in the risk of boiling transition occurring for conditions in the extrapolated regions.
- TS 5.6.5.b revised to incorporate new analytical method for developing core operating limits 12
Quad Cities Proposed TS 5.6.5.b Change 13
Vendor Transition to GNF Methods at Quad Cities (contd)
Revise AST post-LOCA Dose Analysis (QDC-0000-N-1481)
- All parameters, except those explicitly related to the core inventory, are identical to what was used in the previously submitted version of the AST post-LOCA dose consequence analysis (submitted March 31, 2020).
- The change in core inventory (due to GNF3 fuel introduction) resulted in an increase in post-LOCA dose consequences that remain within regulatory acceptance limits, but are considered a more than minimal increase
- None 14
Vendor Transition to GNF Methods at Quad Cities (contd)
RODEX2A + Thermal Conductivity Degradation Penalties (ANP-3918P)
- In support of the legacy ATRIUM 10XM bundles during mixed core operation, Framatome provided thermal-mechanical limits for GNFs use based on calculations performed using a modified RODEX2A methodology.
- RODEX2A method previously approved by the NRC for use at Quad Cities is modified for the inclusion of thermal conductivity degradation (TCD) effects.
- TCD modification methodology previously shared with the NRC but was separate from the RODEX2A approval.
- The RODEX2A fuel rod thermal-mechanical analysis code is used to analyze the fuel rod for fuel centerline temperature, cladding strain, rod internal pressure, cladding collapse, cladding fatigue and external oxidation.
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Vendor Transition to GNF Methods at Quad Cities (contd)
Related Analyses Updates (50.59 scope)
- Design Basis Core Inventories for Quad Cities GNF3 Equilibrium Core
- Calculation documents a bounding core inventory for Quad Cities Units 1 and 2 for GNF3 equilibrium core based on a combination of core average exposure and enrichment data
- Core inventory updated due to GNF3 fuel introduction
- Dose result increase remains within regulatory limits and meet minimal increase standard in 10 CFR 50.67
- AST Fuel Handling Accident
- Core inventory updated due to GNF3 fuel introduction
- Dose results are bounded by the current licensing basis dose consequences
- Environmental Qualification Impacts
- Core inventory updated due to GNF3 fuel introduction
- LAR will summarize impacts, if any, but EQ documentation will be updated separately 16
Overview- Improved Scram Speeds at Quad Cities
Purpose:
Revise control rod scram times to improve ASME overpressure limit margin
- Revised scram times based on actual scram time performance
- GNF performed an evaluation to characterize the impact of scram speed times on ASME dome pressure overpressure results. When previously under GNF methods, Quad Cities had little margin to the limit. The introduction of GNF3 fuel may further challenge that margin.
- TS Table 3.1.4-1 revised with improved scram speed insertion times
- Plant operation should not be impacted 17
Quad Cities Proposed TS 3.1.4 Changes 18
Licensing Schedule and Outage Needs
- Submit LARs according to schedule outlined below Plant/LAR LAR Submittal NRC Approval Implementation Need Date LaSalle/CSA July 2021 August 2022 November 2022 Quad Cities/CSA July 2021 August 2022 January 2023 Quad Cities/GNF3 September 2021 October 2022 January 2023 Transition Quad Cities/Scram December 2021 January 2023 March 2023 Speeds 19
Summary and Wrap-up Summary
- Transition to GNF CSA methodology at LaSalle and Quad Cities:
- Improve core design efficiency by removing unnecessary conservatism due to vendor A CSA for vendor B fuel
- Simplify the design basis for CSAs for GNF fuel types
- Spent fuel storage limits are more straightforward to confirm
- New fuel storage is validated via GESTAR II compliance
- Elimination of unused methodologies from LaSalle TS:
- Clarify the design basis by referencing GESTAR II only
- GEXL98 CP correlation at Quad Cities:
- Allow GNF to utilize the critical power correlation for ATRIUM 10XM fuel during transition cycles licensed under GNF methods
- RODEX2A with TCD penalties methodology at Quad Cities:
- Allow GNF to apply Framatome-developed thermal-mechanical limits to ATRIUM 10XM without modification during transition cycles licensed under GNF methods 20
Summary and Wrap-up Summary (cont.)
- Revision of the AST post-LOCA calculation at Quad Cities:
- Allow GNF3 results to be implemented into the UFSAR/licensing basis
- Improved scram times at Quad Cities:
- Ensure sufficient ASME overpressure analysis margin using GNF methods exists with the introduction of GNF3 fuel
- Have no expected impact on current plant performance Open Discussion 21