ML16200A259

July 19, 2016: NRC Public Meeting on Browns Ferry Nuclear Plant Extended Power Uprate License Amendment Request

ML16200A259
Person / Time
Site:	Browns Ferry
Issue date:	07/19/2016
From:	Doyle G Tennessee Valley Authority
To:	Division of Operating Reactor Licensing
Saba F E
References
Download: ML16200A259 (15)

Text

Browns Ferry Nuclear PlantExtended Power Uprate License Amendment Request NRC Public Meeting Gerry Doyle Director EPUJuly 19,2016 BFN EPU -AgendaBrowns Ferry EPU License Amendment Request IntroductionsExtended Power Uprate (EPU) Background EPU Overview

License Amendment Request (LAR) Review

• Request for Additional Information (RAI) Status

• Audit Results

• Status of Safety Evaluation Input Questions/Comments G DoyleD Green P Donahue D GreenG Doylel 2 BFN EPU -IntroductionsGerry Doyle -Director, EPUPete Donahue -EPU Engineering Manager Dan Green -EPU Licensing ManagerEd Schrull -Fleet Licensing ManagerBrowns Ferry EPU License Amendment Request l 3 BFN EPU -BackgroundBrowns Ferry is pursuing a power uprateCurrent Licensed Thermal Power: 3458 MWtExtended Power Uprate Power: 3952 MWtConstant Pressure Power Uprate1050 psiaSteam Dome PressureMaximum Extended Load Line Limit Analyses power/flow map is retainedFeedwaterand Steam Flow IncreasedBrowns Ferry EPU License Amendment Request l 4 BFN EPU -BackgroundBrowns Ferry EPU License Amendment Request l 5September 2014Previous EPU LARs withdrawn on September 18, to be replaced by new consolidated EPU LAR in October 2015October 2014Fuel Safety Analysis Report Pre-application meeting on October 14 with NRC January 2015Pre-application meeting for 10 CFR 50.46c on January 15 April 2015Pre-application meeting for Startup Test Plan on April 7Pre-application meeting for Replacement Steam Dryers on April 22 May 2015Pre-application meeting for Containment Accident Pressure Credit Elimination on May 12Pre-application meeting for PRA on May 21 June 2015Pre-application meeting for Flow Induced Vibration Monitoring on June 9September 2015BFN EPU LAR submitted on September 21January2016NRC acceptance letter issued on January 11 BFN EPU -BackgroundBrowns Ferry EPU License Amendment Request l 6Browns Ferry EPU Project Team Goals

• Present NRC with high quality LAR consistent with NRC Review Standard RS-001, Review S tandard for Extended Power Uprates

• Receive a minimum number of NRC RAIs

• Resolve CAP credit issues

• Install RSDs on all three Browns Ferry Units

• Facilitate smooth transition to EPU for Plant Operations BFN EPU -OverviewBrowns Ferry EPU License Amendment Request l 7 BFN EPU -OverviewBrowns Ferry EPU License Amendment Request l 8SCHEDULE MILESTONETARGETSubmit New EPULAR COMPLETE -09/21/15U3 Delivery of FW Hx#3 ShellCOMPLETE -01/06/16Receive Acceptance Letter from NRCCOMPLETE -01/11/16NRC Requests for Additional Information (RAIs) -(Start)COMPLETE U2 Delivery of FW Hx#3 ShellCOMPLETE -03/21/16U3R17 Outage (FW Hx#3 Shell Replacement & Margin Modifications)COMPLETE -03/27/16U2 Simulator Model UpgradeCOMPLETENRC Audit -Replacement Steam Dryers Design and Analysis (04/19/16 -04/21/16)COMPLETENRC Audit -Containment Accident Pressure Credit Elimination (05/03/16 -05/05/16)COMPLETENRC Audit -Spent Fuel Pool Criticality Analysis (05/10/16 -05/11/16)COMPLETEU3 Simulator Model Upgrade August 2016NRC Requests for Additional Information (RAIs) -(Completion)November 2016Receive Draft Safety EvaluationDecember 2016ACRS Subcommittee (02/22/17)February 2017U2R19 Outage (FW Hx#3 Shell Replacement)

March 2017ACRS Full Committee (04/06/17 -04/08/17)

April 2017Receive Safety Evaluation and License AmendmentsJuly 2017U3 RSD Delivered to BFN October 2017U3 FW Hx#4 Tube Bundles delivered to BFN (3 Bundles)January 2018U3R18 Outage (EPU Implementation)

March 2018 U1 RSD Delivered to BFN July 2018U1 FW Hx#4 Tube Bundles delivered to BFN (3 Bundles)

August 2018U1R12 Outage (EPU Implementation)

October 2018U2 RSD Delivered to BFN October 2018U2 FW Hx#4 Tube Bundles delivered to BFN (3 Bundles)January 2019U2R20 Outage (EPU Implementation)

March 2019 BFN EPU -OverviewBrowns Ferry EPU License Amendment Request l 9Status of modifications required to implement EPU BFN EPU -LAR ReviewBrowns Ferry EPU License Amendment Request l 10RAI Status

• Responses submitted for 159 RAIs

• Development of responses underway for the following RAIsForty-one NRC RAIs regarding RSDs (subject of NRC audit)

-Responses to Group 2 RAIs to be submitted by 7/29/16

-Responses to Group 3 RAIs to be submitted by 8/5/16Spent Fuel Pool (SFP) Criticality Safety Analysis (CSA) RAIs (subject of NRC audit)

-Nine additional NRC RAIs regarding SFP CSA received 3/22/16

-Two additional NRC RAIs regarding the SFP Storage Ra cks Boral Monitoring Program received 3/22/16

-One additional NRC RAI regarding SFP Criticality Technical Specification requirements received 5/12/16

-Responses to all SFP CSA RAIs to be submitted by 7/29/16Thirty-three NRC RAIs from the Containment Branch received 3/25/16 (subject of NRC audit)

-Responses to Group 2 RAIs (including CAP Credit Elimination Supplement) to be submitted by 7/25/16One additional NRC RAI regarding Dose Consequence Analyses received 6/27/16

-Response to be submitted by 7/29/16One additional NRC RAI regarding Probabilistic Risk Assessment received 7/1/16

-Response to be submitted by 8/12/16Total RAIs received -205Total RAI responses submitted -159 BFN EPU -LAR Review NRC Audits

• Regulatory audits allow NRC to more efficiently conduct its review or gain insights on a licensee's programs or processes

• Regulatory audits are conducted for the NRC to gain understanding, to verify information, and/or to identify information that will require docketing to support the basis for the licensing or regulatory decisionAudits held to facilitate NRC review of EPU LAR

-RSD Design and AnalysesApril 19 -21, 2016

-CAP Credit Elimination AnalysesMay 3 -5, 2016

-SFP CSAMay 10 -11, 2016Browns Ferry EPU License Amendment Request l 11 BFN EPU -LAR ReviewBrowns Ferry EPU License Amendment Request l 12NRC Audits

• RSD AuditDiscussed/reviewed 42 RSD RAIs. Responses will be submitted in three groups related to complexity of issuesNRC deleted 2.5 RAIs, added one new RAI, and modified five RAIsNRC will require revision to proposed License Condition for RSD power ascension testing and follow-on reportingFollow-up meeting with NRC held 6/23/16 regarding Safety Relief Valve loading RAIs*CAP Credit Elimination AuditDiscussed/reviewed 33 CAP RAIs. Responses will be submitted in two groupsNRC modified two RAIsClarification call with NRC reviewer regarding RHR Heat Exchanger Performance Testing uncertainty calculations held 6/16/16

• SFP CSADiscussed/reviewed 12 RAIs related to SFP CSANRC added one new RAI associated with SFP Criticality Technical Specification requirementsNRC will require License Condition for periodic testing of Boral areal density BFN EPU -LAR ReviewBrowns Ferry EPU License Amendment Request l 13Status of Safety Evaluation Input

• Draft input to Safety Evaluation due to NRC Project Manager by September 2016

• Draft input from two Technical Branches received by NRC Project Manager to date BFN EPU -Acronym ListBrowns Ferry EPU License Amendment Request l 14*AST -Alternative Source Term

• ACRS -Advisory Committee on Reactor Safeguards

• AVS's -Acoustic Vibration Suppressors

• BFN -Browns Ferry Nuclear Plant

• BLEU -Blended Low Enriched Uranium

• CAP -Containment Accident Pressure

• CSA -Criticality Safety Analysis

• EPU -Extended Power Uprate

• FW -Feedwater

• GDC -General Design Criteria

• Hx-Heat Exchanger

• LA -License Amendment

• LAR -License Amendment Request

• NRC -Nuclear Regulatory Commission

• RAI -Request for Additional Information

• RHR -Residual Heat Removal

• RSD -Replacement Steam Dryer

• SE -Safety Evaluation

• SFP -Spent Fuel Pool BFN EPU -Questions/CommentsBrowns Ferry EPU License Amendment Request l 15