ML23278A012
| ML23278A012 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 10/05/2023 |
| From: | Sivaraman M Tennessee Valley Authority |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| Shared Package | |
| ML23278A010 | List: |
| References | |
| Download: ML23278A012 (1) | |
Text
Security Related Information - Withhold Under 10 CFR 2.390 This letter is decontrolled when separated from Enclosure 2 Post Office Box 2000, Decatur, Alabama 35609-2000 October 5, 2023 10 CFR 50.4 10 CFR 50.71(e)(4) 10 CFR 54.37(b)
ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Browns Ferry Nuclear Plant, Units 1, 2, and 3 Renewed Facility Operating License Nos. DPR-33, DPR-52, and DPR-68 NRC Docket Nos. 50-259, 50-260, and 50-296
Subject:
Browns Ferry Nuclear Plant - Updated Final Safety Analysis Report, Amendment 30 Pursuant to the requirements of Title 10 of the Code of Federal Regulations (10 CFR) Part 50.71, Maintenance of Records, Making of Reports, paragraph (e)(4), the Tennessee Valley Authority (TVA) is submitting Amendment 30 of the Updated Final Safety Analysis Report (UFSAR) for the Browns Ferry Nuclear Plant (BFN).
Amendment 30 of the BFN UFSAR is a 24-month update that reflects editorial corrections, changes, and analyses pursuant to 10 CFR 50.59, Changes Tests, and Experiments, to the facility, which were in effect through July 1, 2023. The summaries of evaluations of these changes made under the provisions of 10 CFR 50.59 will be provided to the NRC in separate correspondence.
TVA is submitting a redacted copy of UFSAR Amendment 30 for NRC Public Use (Enclosure 1) and the Non-Public Use version (Enclosure 2) that contains security related information that should be withheld from public disclosure in accordance with 10 CFR 2.390.
Pursuant to 10 CFR 54.37(b), this submittal includes the results of TVAs review of design activities to identify any new systems, structures, and components for potential impact on its license renewal aging management programs. This review is included as Enclosure 3.
There are no new regulatory commitments contained in this letter. Should you have any questions concerning this submittal, please contact David J. Renn, Site Licensing Manager, at (256) 729-2636.
I certify that I am duly authorized by TVA, and that, to the best of my knowledge and belief, the information contained herein accurately presents changes made since the previous submittal,
Security Related Information - Withhold Under 10 CFR 2.390 This letter is decontrolled when separated from Enclosure 2 U.S. Nuclear Regulatory Commission Page 2 October 5, 2023 necessary to reflect information and analyses submitted to the Commission or prepared pursuant to Commission requirements.
Respectfully, Manu Sivaraman BFN Site Vice President
Enclosures:
1.
Redacted Updated Final Safety Analysis Report (UFSAR) Amendment 30 (Public Use) 2.
Updated Final Safety Analysis Report (UFSAR) Amendment 30 (Non-Public Use) 3.
License Renewal 10 CFR 54.37(b) Report cc (w/o Enclosures):
NRC Regional Administrator - Region II NRC Senior Resident Inspector - Browns Ferry Nuclear Plant
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ENCLOSURE 1 Browns Ferry Nuclear Plant Units 1, 2, and 3 Redacted Updated Final Safety Analysis Report (UFSAR) Amendment 30 (Public Use)
Security Related Information - Withhold Under 10 CFR 2.390 This letter is decontrolled when separated from Enclosure 2 ENCLOSURE 2 Browns Ferry Nuclear Plant Units 1, 2, and 3 Updated Final Safety Analysis Report (UFSAR) Amendment 30 (Non-Public Use)
ENCLOSURE 3 Browns Ferry Nuclear Plant Units 1, 2, and 3 License Renewal 10 CFR 54.37(b) Report
E3-1 License Renewal 10 CFR 54.37(b) Report Pursuant to 10 CFR 54.37(b), this Updated Final Safety Analysis Report (UFSAR) update includes the results of a review of changes at the Browns Ferry Nuclear Plant BFN for the Updated Final Safety Analysis Report Amendment 30 period for any newly identified systems, structures, and components (SSCs) that could have been subject to an aging management review or evaluation of time-limited aging analysis (TLAA) in accordance with 10 CFR 54.21.
This UFSAR update also describes how the effects of aging will be managed such that the intended function(s) in 10 CFR 54.4(b) will be effectively maintained during the period of extended operation.
The review identified one subject that resulted in newly identified SSCs.
Appendix R to NFPA-805 Transition The transition from Appendix R to NFPA-805 has been reviewed for impacts tied to 10 CFR 54.37(b). Additional discussion of this subject is included in BFN UFSAR Amendment 30 Appendix O, Section O.4.3.
The results of the aging management review for those SSCs identified are presented below.
E3-2 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Table 3.2.2.6 Containment Inerting System (076) - Summary of Aging Management Evaluation Tanks PB Carbon and Low Alloy Steel Air/gas (internal)
Loss of Material due to General Corrosion One-Time Inspection (B.2.1.29)
None Tanks PB Carbon and Low Alloy Steel Outside Air (external)
Loss of Material due to General Corrosion System Monitoring Program (B.2.1.39)
V.E.10b Tanks PB Stainless Steel Air/gas (internal)
None None None Tanks PB Stainless Steel Outside Air (external)
None None V.E.1-b Table 3.3.2.10 Control Air System (032) - Summary of Aging Management Evaluation Pumps PB Carbon and Low Alloy Steel Lubricating Oil (internal)
None None VII.C2.3-a Pumps PB Cast Iron and Cast Iron Alloy Lubricating Oil (internal)
None None VII.C2.3-a Pumps PB Copper Alloy Lubricating Oil (internal)
None None None Pumps PB Carbon and Low Alloy Steel Treated Water (internal)
Loss of material due to crevice, general, and pitting corrosion.
Closed-Cycle Cooling Water System Program (B.2.1.18)
VII.C2.3-a Pumps PB Cast Iron and Cast Iron Alloy Treated Water (internal)
Loss of material due to crevice and pitting corrosion.
Closed-Cycle Cooling Water System Program (B.2.1.18)
VII.C2.3-a Pumps PB Copper Alloy Treated Water (internal)
Loss of material due to crevice, galvanic, and pitting corrosion.
Closed-Cycle Cooling Water System Program (B.2.1.18)
None Strainers DP, PB Carbon and Low Alloy Steel Lubricating Oil (internal)
None None None Strainers DP, PB Cast Iron and Cast Iron Alloy Lubricating Oil (internal)
None None None
E3-3 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Strainers DP, PB Copper Alloy Lubricating Oil (internal)
None None None Table 3.3.2.4 Raw Cooling Water System (024) - Summary of Aging Management Evaluation Heat Exchangers HT, PB Carbon and Low Alloy Steel Inside Air (external)
Loss of material due to general corrosion.
System Monitoring Program (B.2.1.39)
VII.I.1-b Heat Exchangers HT, PB Carbon and Low Alloy Steel Air/gas (internal)
Loss of material due to crevice, galvanic, general, and pitting corrosion.
One-Time Inspection Program (B.2.1.29)
VII.F1.2-a Heat Exchangers HT, PB Carbon and Low Alloy Steel Raw Water (internal)
Loss of material due to MIC, biofouling, crevice, galvanic, general, and pitting corrosion.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Heat Exchangers HT, PB Carbon and Low Alloy Steel Lubricating Oil (internal /
external)
None None None Heat Exchangers HT, PB Carbon and Low Alloy Steel Treated Water (internal)
Loss of material due to crevice, galvanic, general, and pitting corrosion.
Closed-Cycle Cooling Water System Program (B.2.1.18)
None Heat Exchangers HT, PB Stainless Steel Inside Air (external)
None None None Heat Exchangers HT, PB Stainless Steel Air/gas (internal)
None None None Heat Exchangers HT, PB Stainless Steel Raw Water (internal)
Fouling product buildup due to biological and particulate.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Loss of material due to biofouling, MIC, crevice and pitting corrosion.
Heat Exchangers HT, PB Stainless Steel Lubricating Oil (internal /
external)
None None None Heat Exchangers HT, PB Stainless Steel Treated Water (internal)
Fouling product buildup due to particulate.
Chemistry Control Program (B.2.1.5)
V.D2.4-a Loss of material due to crevice and pitting corrosion.
One-Time Inspection (B.2.1.29)
Heat Exchangers HT, PB Copper Alloy Inside Air (external)
None None None
E3-4 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Heat Exchangers HT, PB Copper Alloy Air/gas (internal)
None None None Heat Exchangers HT, PB Copper Alloy Raw Water (internal)
Loss of material due to MIC, biofouling, crevice, galvanic, general, and pitting corrosion.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Heat Exchangers HT, PB Copper Alloy Lubricating Oil (internal /
external)
None None VII.F4.2-a Heat Exchangers HT, PB Copper Alloy Treated Water (internal)
Loss of material due to selective leaching.
Selective Leaching of Materials Program (B.2.1.30)
VII.G.6-b Heat Exchangers HT, PB Copper Alloy Treated Water (internal)
Fouling product buildup due to particulate.
Chemistry Control Program (B.2.1.5)
V.D2.4-a Loss of material due to crevice and pitting corrosion.
One-Time Inspection (B.2.1.29)
Heat Exchangers HT, PB Cast Iron Inside Air (external)
Loss of material due to general corrosion.
System Monitoring Program (B.2.1.39)
VII.I.1-b Heat Exchangers HT, PB Cast Iron Air/gas (internal)
Loss of material due to crevice, galvanic, general, and pitting corrosion.
One-Time Inspection Program (B.2.1.29)
VII.F4.2-a Heat Exchangers HT, PB Cast Iron Raw Water (internal)
Loss of material due to MIC, biofouling, crevice, galvanic, general, and pitting corrosion.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Heat Exchangers HT, PB Cast Iron Lubricating Oil (internal /
external)
None None None Heat Exchangers HT, PB Cast Iron Treated Water (internal)
Loss of material due to crevice, galvanic, general, and pitting corrosion.
Closed-Cycle Cooling Water System Program (B.2.1.18)
VII.F1.2-a Table 3.4.2.6 Condenser Circulating Water System (027) - Summary of Aging Management Evaluation Fittings PB, SS, FD Carbon and Low Alloy Steel Raw Water (internal)
Fouling due to biological and particulate buildup.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Heat Exchanger, CCW Condenser -
Water Box FD Carbon Steel Raw Water (internal)
Fouling due to biological and particulate buildup.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a
E3-5 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Heat Exchanger, CCW Condenser -
Tubes FD Carbon Steel Raw Water (internal)
Fouling due to biological and particulate buildup.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Piping SS, PB, FD Carbon and Low Alloy Steel Raw Water (internal)
Fouling due to biological and particulate buildup.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Piping SS, PB, FD Carbon and Low Alloy Steel Raw Water (internal)
Loss of material due to biofouling, MIC, crevice, general, and pitting corrosion.
One Time Inspection Program (B.2.1.29)
VII.C1.1-a Pumps PB Carbon and Low Alloy Steel Raw Water (external)
Loss of material due to MIC, galvanic, biofouling, general, crevice, and pitting corrosion Open-Cycle Cooling Water System Program (B.2.1.17)
VII.I.1-b Pumps PB Carbon and Low Alloy Steel Raw Water (internal)
Loss of material due to MIC, biofouling, general, crevice, and pitting corrosion Open-Cycle Cooling Water System Program (B.2.1.17)
VII C1.5-a Strainers SS, PB, FD Carbon and Low Alloy Steel Raw Water (internal)
Fouling due to biological and particulate buildup.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Valves SS, PB, FD Carbon and Low Alloy Steel Raw Water (internal)
Loss of material due to biofouling, MIC, crevice, general, and pitting corrosion.
One Time Inspection Program (B.2.1.29)
VII.C1.1-a Valves SS, PB, FD Carbon and Low Alloy Steel Raw Water (internal)
Fouling due to biological and particulate buildup.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Valves SS, PB, FD Cast Iron and Cast Iron Alloy Raw Water (internal)
Fouling due to biological and particulate buildup.
Open-Cycle Cooling Water System Program (B.2.1.17)
VII.F1.2-a Table 3.4.2.3 Feedwater System (003) - Summary of Aging Management Evaluation Pumps PB Carbon and Low Alloy Steel Air/gas (internal) - moist air Loss of material due to crevice, galvanic, general, and pitting corrosion.
One Time Inspection Program (B.2.1.29)
VIII.D2.1-b Pumps PB Carbon and Low Alloy Steel Inside Air (external)
None None VIII.H.1-b Pumps PB Carbon and Low Alloy Steel Treated Water (internal)
Loss of material due to crevice, general, and pitting corrosion.
Chemistry Control Program (B.2.1.5)
VIII.D2.1-b One Time Inspection Program (B.2.1.29)
E3-6 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Pumps PB Carbon and Low Alloy Steel Treated Water (internal)
Crack initiation/growth due to fatigue.
None VIII.D2.1-c Pumps PB Cast Iron and Cast Iron Alloys Air/gas (internal) - moist air Loss of material due to general corrosion.
One Time Inspection Program (B.2.1.29)
VIII.E.2-b Pumps PB Cast Iron and Cast Iron Alloys Inside Air (external)
Loss of material due to general corrosion.
System Monitoring Program (B.2.1.39)
VIII.H.1-b Pumps PB Cast Iron and Cast Iron Alloys Treated Water (internal)
Loss of material due to selective leaching.
Selective Leaching of Materials Program (B.2.1.30)
VIII.E.2-b Pumps PB Cast Iron and Cast Iron Alloys Treated Water (internal)
Loss of material due to crevice, general, and pitting corrosion.
Chemistry Control Program (B.2.1.5)
VIII.E.2-b One Time Inspection Program (B.2.1.29)
Heat Exchangers PB Carbon and Low Alloy Steel Inside Air (external)
Loss of material due to general corrosion.
System Monitoring Program (B.2.1.39)
VII.I.1-b Heat Exchangers PB Carbon and Low Alloy Steel Air/gas (internal)
Loss of material due to crevice, galvanic, general, and pitting corrosion.
One-Time Inspection Program (B.2.1.29)
VII.F1.2-a Heat Exchangers PB Carbon and Low Alloy Steel Treated Water (internal)
Loss of material due to crevice, general, and pitting corrosion.
Chemistry Control Program (B.2.1.5)
VIII.E.1-b One Time Inspection Program (B.2.1.29)
Heat Exchangers PB Carbon and Low Alloy Steel Treated Water (internal)
Loss of material due to galvanic corrosion.
Chemistry Control Program (B.2.1.5)
VIII.E.1-b One Time Inspection Program (B.2.1.29)
Heat Exchangers PB Stainless Steel Inside Air (external)
None None None Heat Exchangers PB Stainless Steel Air/gas (internal)
None None None
E3-7 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Heat Exchangers PB Stainless Steel Treated Water (internal)
Fouling product buildup due to particulate.
Chemistry Control Program (B.2.1.5)
V.D2.4-a Loss of material due to crevice and pitting corrosion.
One-Time Inspection (B.2.1.29)
Heat Exchangers PB Copper Alloy Inside Air (external)
None None None Heat Exchangers PB Copper Alloy Air/gas (internal)
None None None Heat Exchangers PB Copper Alloy Treated Water (internal)
Loss of material due to selective leaching.
Selective Leaching of Materials Program (B.2.1.30)
VII.G.6-b Heat Exchangers PB Copper Alloy Treated Water (internal)
Fouling product buildup due to particulate.
Chemistry Control Program (B.2.1.5)
V.D2.4-a Loss of material due to crevice and pitting corrosion.
One-Time Inspection (B.2.1.29)
Heat Exchangers PB Cast Iron Inside Air (external)
Loss of material due to general corrosion.
System Monitoring Program (B.2.1.39)
VII.I.1-b Heat Exchangers PB Cast Iron Air/gas (internal)
Loss of material due to crevice, galvanic, general, and pitting corrosion.
One-Time Inspection Program (B.2.1.29)
VII.F4.2-a Heat Exchangers PB Cast Iron Treated Water (internal)
Loss of material due to crevice, galvanic, general, and pitting corrosion.
Closed-Cycle Cooling Water System Program (B.2.1.18)
VII.F1.2-a Table 3.5.2.10 Electrical Cable Tunnel from Intake Pumping Station to the Powerhouse - Summary of Aging Management Evaluation Fire barriers FB Carbon and Low Alloy Steel Inside Air Loss of material due to mechanical wear.
Fire Protection Program (B.2.1.23)
VII.G.4-d Fire barriers FB Masonry Inside Air Cracking due to restraint, shrinkage, creep, aggressive environment.
Masonry Wall Program (B.2.1.35)
III.A3.3-a Table 3.5.2.23 Transformer Yard - Summary of Aging Management Evaluation Fire barrier FB Reinforced Concrete Outside Air Loss of material (spalling, scaling) and cracking / freeze-thaw Structures Monitoring Program (B.2.1.36)
III.A3.1-a
E3-8 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Fire barrier FB Reinforced Concrete Outside Air Expansion and cracking due to reaction with aggregates.
Structures Monitoring Program (B.2.1.36)
III.A3.1-c Table 3.5.2.12 Intake Pumping Station - Summary of Aging Management Evaluation Fire barrier FB Reinforced Concrete Outside Air Loss of material (spalling, scaling) and cracking / freeze-thaw Structures Monitoring Program (B.2.1.36)
III.A3.1-a Fire barrier FB Reinforced Concrete Outside Air Expansion and cracking due to reaction with aggregates.
Structures Monitoring Program (B.2.1.36)
III.A3.1-c Table 3.5.2.16a Condenser Circulating Water Conduits - Summary of Aging Management Evaluation Reinforced Concrete Beams, Columns, Walls, and Slabs SS Reinforced Concrete Outside Air Loss of material (spalling, scaling) and cracking due to freeze-thaw.
Inspection of Water-Control Structures Program (B.2.1.37)
III.A6.1-a Reinforced Concrete Beams, Columns, Walls, and Slabs SS Reinforced Concrete Outside Air Increase in porosity and permeability, loss of strength due to leaching of calcium hydroxide.
Inspection of Water-Control Structures Program (B.2.1.37)
III.A6.1-b Reinforced Concrete Beams, Columns, Walls, and Slabs SS Reinforced Concrete Outside Air Expansion and cracking due to reaction with aggregates.
Inspection of Water-Control Structures Program (B.2.1.37)
III.A6.1-c Reinforced Concrete Beams, Columns, Walls, and Slabs SS Reinforced Concrete Outside Air Cracking, loss of bond, loss of material (spalling, scaling) due to corrosion of embedded steel.
Inspection of Water-Control Structures Program (B.2.1.37)
III.A6.1-d Reinforced Concrete Beams, Columns, Walls, and Slabs SS Reinforced Concrete Outside Air Increase in porosity and permeability, cracking, loss of material (spalling, scaling) due to aggressive chemical attack.
Inspection of Water-Control Structures Program (B.2.1.37)
III.A6.1-e Reinforced Concrete Beams, Columns, Walls, and Slabs SS Reinforced Concrete Buried Loss of material (spalling, scaling) and cracking due to freeze-thaw.
Inspection of Water-Control Structures Program (B.2.1.37)
III.A6.1-a Structural Steel Beams, Columns, Plates, Trusses SS Carbon and Low Alloy Steel Outside Air Loss of material due to crevice corrosion, general corrosion, pitting corrosion Inspection of Water-Control Structures Program (B.2.1.37)
III.A6.2-a Structural Steel Beams, Columns, Plates, Trusses SS Carbon and Low Alloy Steel Embedded/ Encased None None III.A6.1-a
E3-9 Component Type Intended Function Material Environment Aging Effect Requiring Management Aging Management Program NUREG-1801 Vol. 2 Item Table 3.5.2.20 Turbine Building - Summary of Aging Management Evaluation Fire barrier FB Reinforced Concrete Outside Air Loss of material (spalling, scaling) and cracking / freeze-thaw Structures Monitoring Program (B.2.1.36)
III.A3.1-a Fire barrier FB Reinforced Concrete Outside Air Expansion and cracking due to reaction with aggregates.
Structures Monitoring Program (B.2.1.36)
III.A3.1-c