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
References
Download: ML16200A259 (15)

Text

Browns Ferry Nuclear Plant Extended Power Uprate License Amendment Request NRC Public Meeting Gerry Doyle Director EPU July 19, 2016

BFN EPU - Agenda Introductions G Doyle Extended Power Uprate (EPU) Background D Green EPU Overview P Donahue License Amendment Request (LAR) Review D Green

• Request for Additional Information (RAI) Status

• Audit Results

• Status of Safety Evaluation Input Questions/Comments G Doyle Browns Ferry EPU License Amendment Request l 2

BFN EPU - Introductions Gerry Doyle - Director, EPU Pete Donahue - EPU Engineering Manager Dan Green - EPU Licensing Manager Ed Schrull - Fleet Licensing Manager Browns Ferry EPU License Amendment Request l 3

BFN EPU - Background Browns Ferry is pursuing a power uprate Current Licensed Thermal Power: 3458 MWt Extended Power Uprate Power: 3952 MWt Constant Pressure Power Uprate 1050 psia Steam Dome Pressure Maximum Extended Load Line Limit Analyses power/flow map is retained Feedwater and Steam Flow Increased Browns Ferry EPU License Amendment Request l 4

BFN EPU - Background Previous EPU LARs withdrawn on September 18, to be replaced by new consolidated EPU LAR in September 2014 October 2015 October 2014 Fuel Safety Analysis Report Pre-application meeting on October 14 with NRC January 2015 Pre-application meeting for 10 CFR 50.46c on January 15 April 2015 Pre-application meeting for Startup Test Plan on April 7 Pre-application meeting for Replacement Steam Dryers on April 22 Pre-application meeting for Containment Accident Pressure Credit Elimination on May 12 May 2015 Pre-application meeting for PRA on May 21 June 2015 Pre-application meeting for Flow Induced Vibration Monitoring on June 9 September 2015 BFN EPU LAR submitted on September 21 January 2016 NRC acceptance letter issued on January 11 Browns Ferry EPU License Amendment Request l 5

BFN EPU - Background Browns Ferry EPU Project Team Goals

• Present NRC with high quality LAR consistent with NRC Review Standard RS-001, Review Standard 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 Browns Ferry EPU License Amendment Request l 6

BFN EPU - Overview Browns Ferry EPU License Amendment Request l 7

BFN EPU - Overview SCHEDULE MILESTONE TARGET Submit New EPU LAR COMPLETE - 09/21/15 U3 Delivery of FW Hx #3 Shell COMPLETE - 01/06/16 Receive Acceptance Letter from NRC COMPLETE - 01/11/16 NRC Requests for Additional Information (RAIs) - (Start) COMPLETE U2 Delivery of FW Hx #3 Shell COMPLETE - 03/21/16 U3R17 Outage (FW Hx #3 Shell Replacement & Margin Modifications) COMPLETE - 03/27/16 U2 Simulator Model Upgrade COMPLETE NRC Audit - Replacement Steam Dryers Design and Analysis (04/19/16 - 04/21/16) COMPLETE NRC Audit - Containment Accident Pressure Credit Elimination (05/03/16 - 05/05/16) COMPLETE NRC Audit - Spent Fuel Pool Criticality Analysis (05/10/16 - 05/11/16) COMPLETE U3 Simulator Model Upgrade August 2016 NRC Requests for Additional Information (RAIs) - (Completion) November 2016 Receive Draft Safety Evaluation December 2016 ACRS Subcommittee (02/22/17) February 2017 U2R19 Outage (FW Hx #3 Shell Replacement) March 2017 ACRS Full Committee (04/06/17 - 04/08/17) April 2017 Receive Safety Evaluation and License Amendments July 2017 U3 RSD Delivered to BFN October 2017 U3 FW Hx #4 Tube Bundles delivered to BFN (3 Bundles) January 2018 U3R18 Outage (EPU Implementation) March 2018 U1 RSD Delivered to BFN July 2018 U1 FW Hx #4 Tube Bundles delivered to BFN (3 Bundles) August 2018 U1R12 Outage (EPU Implementation) October 2018 U2 RSD Delivered to BFN October 2018 U2 FW Hx #4 Tube Bundles delivered to BFN (3 Bundles) January 2019 U2R20 Outage (EPU Implementation) March 2019 Browns Ferry EPU License Amendment Request l 8

BFN EPU - Overview Status of modifications required to implement EPU Browns Ferry EPU License Amendment Request l 9

BFN EPU - LAR Review RAI Status Total RAIs received - 205 Total RAI responses submitted - 159

• Responses submitted for 159 RAIs

• Development of responses underway for the following RAIs Forty-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 8/5/16 Spent 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 Racks 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 7/29/16 Thirty-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 7/25/16 One additional NRC RAI regarding Dose Consequence Analyses received 6/27/16

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

- Response to be submitted by 8/12/16 Browns Ferry EPU License Amendment Request l 10

BFN EPU - LAR Review NRC Audits

• Regulatory audits allow NRC to more efficiently conduct its review or gain insights on a licensees 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 decision Audits held to facilitate NRC review of EPU LAR

- RSD Design and Analyses April 19 - 21, 2016

- CAP Credit Elimination Analyses May 3 - 5, 2016

- SFP CSA May 10 - 11, 2016 Browns Ferry EPU License Amendment Request l 11

BFN EPU - LAR Review NRC Audits

• RSD Audit Discussed/reviewed 42 RSD RAIs. Responses will be submitted in three groups related to complexity of issues NRC deleted 2.5 RAIs, added one new RAI, and modified five RAIs NRC will require revision to proposed License Condition for RSD power ascension testing and follow-on reporting Follow-up meeting with NRC held 6/23/16 regarding Safety Relief Valve loading RAIs

• CAP Credit Elimination Audit Discussed/reviewed 33 CAP RAIs. Responses will be submitted in two groups NRC modified two RAIs Clarification call with NRC reviewer regarding RHR Heat Exchanger Performance Testing uncertainty calculations held 6/16/16

• SFP CSA Discussed/reviewed 12 RAIs related to SFP CSA NRC added one new RAI associated with SFP Criticality Technical Specification requirements NRC will require License Condition for periodic testing of Boral areal density Browns Ferry EPU License Amendment Request l 12

BFN EPU - LAR Review Status 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 Browns Ferry EPU License Amendment Request l 13

BFN EPU - Acronym List

• AST - Alternative Source Term

• ACRS - Advisory Committee on Reactor Safeguards

• AVSs - 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 Browns Ferry EPU License Amendment Request l 14

BFN EPU - Questions/Comments Browns Ferry EPU License Amendment Request l 15