ML15105A533
| ML15105A533 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 04/22/2015 |
| From: | Doyle G GE-Hitachi Nuclear Energy Americas |
| To: | Farideh Saba Plant Licensing Branch II |
| Saba F DORL/LPL2-2 301-415-1447 | |
| Shared Package | |
| ML15099A304 | List: |
| References | |
| 175528-011, Rev 1 | |
| Download: ML15105A533 (77) | |
Text
GE-Hitachi Nuclear Energy Americas LLC ENCLOSURE 2 GE Letter No. 175528-011, Revision 1 GEH Slides for TVA Presentation to the NRC in Support of Steam Dryer Replacement Non-Proprietary Information NON-PROPRIETARY NOTICE This is a non-proprietary version of Enclosure 1 of GEH Letter No. 175528-011, Revision 1 which has the proprietary information removed. Portions of the document that have been removed are indicated by an open and closed bracket as shown here (( )).
Browns Ferry Nuclear Plant Replacement Steam Dryers Gerry Doyle Director EPU April 22, 2015 Non-Proprietary Information - Class I (Public)
Agenda Browns Ferry EPU License Amendment Request Startup Test Plan l 2
Introductions
Overview and Background Browns Ferry Replacement Steam Dryer Design Browns Ferry Replacement Steam Dryer Analysis Browns Ferry Replacement Steam Dryer Power Ascension Monitoring Browns Ferry Replacement Steam Dryer Inspection Plan Questions/Comments G. Doyle G. Doyle P. Donahue P. Donahue P. Donahue P. Donahue G. Doyle Non-Proprietary Information - Class I (Public)
Overview and Background Browns Ferry EPU License Amendment Request Startup Test Plan l 3 New Replacement Steam Dryers (RSDs) will be installed in all three Browns Ferry Units
- To resolve any issues that existing steam dryers may have under EPU conditions
- Previous submittals, now withdrawn, had over 260 RAIs associated with steam dryers
- New EPU License Amendment Request (LAR) submittal will address previous issues, look to minimize RAIs, and support NRC approval Current strategy and design complies with existing and contemporary regulatory requirements Contracted with GEH to build our RSDs as they are the Original Equipment Manufacturer and have experience in other recent RSDs We are here to present an overview of our RSDs design, analysis, monitoring plan and inspection plan with an expectation that NRC fully understands the RSD information we plan to submit as part of our EPU LAR Presenter is Pete Donahue, Senior Manager for EPU Engineering
- Supported by GEH personnel Non-Proprietary Information - Class I (Public)
BFN Replacement Steam Dryer Browns Ferry Replacement Steam Dryer Analysis l 4 Based on the curved hood six bank prototype replacement dryer first used in a BWR/4 reactor.
Design is significantly more robust than the original steam dryer it replaces.
BFN acoustic load definition developed using MSL acoustic pressure measurements taken at the three Browns Ferry units.
The FIV fatigue evaluation and primary stress methodologies used for BFN RSD analysis has been reviewed in detail on BWR/6 RSD and ESBWR projects.
Analyzed for the applicable primary structural loads for normal operation and for transient and accident conditions.
Non-Proprietary Information - Class I (Public)
Browns Ferry RSD Design
EPU Replacement Dryer Experience Browns Ferry Replacement Steam Dryer Analysis l 6 Successful operating history for replacement dryers at EPU Quad Cities Units 1/2 RSD Dresden Units 2/3 RSD Susquehanna Units 1/2 RSD Grand Gulf RSD Vermont Yankee original dryer with modifications Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 7 Steam Dryer Structural Design Timeline
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 8 Steam Dryer Structural Design Timeline
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 9 Steam Dryer Structural Design Timeline
((
))
Non-Proprietary Information - Class I (Public)
BFN Replacement Dryer Design Browns Ferry Replacement Steam Dryer Analysis l 10 Based on the curved hood six bank prototype replacement dryer first used in a BWR/4 reactor.
Design is significantly more robust than the original steam dryer it replaces.
Both the Browns Ferry reactor vessel and the BWR/4 reactor vessel where the BWR/4 prototype RSD was installed have the same internal diameter; so in essence,
((
))
Non-Proprietary Information - Class I (Public)
BFN Replacement Dryer Design Browns Ferry Replacement Steam Dryer Analysis l 11
- Changes to prototype dryer design Dryer/vessel interface changes Address OE lessons learned Stress reduction
((
))
Non-Proprietary Information - Class I (Public)
BFN Replacement Dryer Design Browns Ferry Replacement Steam Dryer Analysis l 12
((
))
Non-Proprietary Information - Class I (Public)
BFN Replacement Dryer Design Browns Ferry Replacement Steam Dryer Analysis l 13
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Improvement Browns Ferry Replacement Steam Dryer Analysis l 14
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Improvement Browns Ferry Replacement Steam Dryer Analysis l 15
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Improvement Browns Ferry Replacement Steam Dryer Analysis l 16
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Refinement Browns Ferry Replacement Steam Dryer Analysis l 17
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Refinement Browns Ferry Replacement Steam Dryer Analysis l 18
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Refinement Browns Ferry Replacement Steam Dryer Analysis l 19
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Refinement Browns Ferry Replacement Steam Dryer Analysis l 20
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Refinement Browns Ferry Replacement Steam Dryer Analysis l 21
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Design Refinement Browns Ferry Replacement Steam Dryer Analysis l 22
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry RSD Analysis
BFN RSD Analysis Overview Browns Ferry Replacement Steam Dryer Analysis l 24
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry RSD Load Definition
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 26
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 27
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 28
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 29
((
))
Non-Proprietary Information - Class I (Public)
Potential SRV Resonance Frequencies Browns Ferry Replacement Steam Dryer Analysis l 30
((
))
Non-Proprietary Information - Class I (Public)
SRV Resonance Fundamental Frequency Browns Ferry Replacement Steam Dryer Analysis l 31
((
))
Non-Proprietary Information - Class I (Public)
MSL Acoustic Mode Interaction Browns Ferry Replacement Steam Dryer Analysis l 32
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 33 MSL Acoustic Mode Interaction
((
))
Non-Proprietary Information - Class I (Public)
Postulated SRV Resonances Browns Ferry Replacement Steam Dryer Analysis l 34
((
))
Non-Proprietary Information - Class I (Public)
SRV Adders for Design Load Definition Browns Ferry Replacement Steam Dryer Analysis l 35
))
Non-Proprietary Information - Class I (Public)
((
EPU SRV Scale Factor Browns Ferry Replacement Steam Dryer Analysis l 36
((
))
Non-Proprietary Information - Class I (Public)
EPU SRV Scale Factor Browns Ferry Replacement Steam Dryer Analysis l 37
))
Non-Proprietary Information - Class I (Public)
((
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 38
((
))
Non-Proprietary Information - Class I (Public)
Dryer Load Comparison Browns Ferry Replacement Steam Dryer Analysis l 39
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 40
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 41
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 42
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 43
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 44
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Analysis Load Definition Browns Ferry Replacement Steam Dryer Analysis l 45
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry RSD FIV Analysis
BFN RSD Finite Element Model Browns Ferry Replacement Steam Dryer Analysis l 47
((
))
Non-Proprietary Information - Class I (Public)
BFN-Specific Design Improvements Browns Ferry Replacement Steam Dryer Analysis l 48
((
))
Non-Proprietary Information - Class I (Public)
BFN-Specific Design Improvements Browns Ferry Replacement Steam Dryer Analysis l 49
))
Non-Proprietary Information - Class I (Public)
((
BFN-Specific Design Improvements Browns Ferry Replacement Steam Dryer Analysis l 50
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD FEM Mesh Convergence Browns Ferry Replacement Steam Dryer Analysis l 51
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD FIV Analysis Browns Ferry Replacement Steam Dryer Analysis l 52
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD FIV Analysis Browns Ferry Replacement Steam Dryer Analysis l 53
((
))
Non-Proprietary Information - Class I (Public)
End to End Bias and Uncertainty Browns Ferry Replacement Steam Dryer Analysis l 54
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 55 End to End Bias and Uncertainty
((
))
Non-Proprietary Information - Class I (Public)
FIV Stress Adjustment Browns Ferry Replacement Steam Dryer Analysis l 56
))
Non-Proprietary Information - Class I (Public)
((
FIV Stress Adjustment Browns Ferry Replacement Steam Dryer Analysis l 57
((
))
Non-Proprietary Information - Class I (Public)
BFN RSD Fatigue Analysis Results Browns Ferry Replacement Steam Dryer Analysis l 58
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry RSD Primary Stress Evaluation
BFN RSD Primary Stress Evaluation Browns Ferry Replacement Steam Dryer Analysis l 60
- The steam dryer is a non-safety related item and is classified as an Internal Structure as defined in ASME Subsection NG, Paragraph NG-1122.
- The steam dryer is not an ASME Code component, ((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 61 Load Case Service Conditions Operating Condition Load Combination
((
))
BFN RSD Primary Stress Analysis Load Combinations Non-Proprietary Information - Class I (Public)
BFN RSD Primary Stress Results Browns Ferry Replacement Steam Dryer Analysis l 62
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry RSD Power Ascension Monitoring
Browns Ferry Replacement Steam Dryer Analysis l 64
))
- Power ascension monitoring process similar to previous RSD projects
- BFN Lead Unit Both RSD and MSLs instrumented Monitor using strain gauges, on-dryer pressure transducers, and accelerometer BFN Power Ascension Monitoring Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 65
))
Confirmatory structural analysis for lead unit at EPU ((
))
- Follow-on Units MSLs instrumented
))
Confirmatory structural evaluation based on MSL measurements BFN Power Ascension Monitoring
((
((
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 66 BFN RSD Instrumentation Locations
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 67 BFN RSD Instrumentation
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 68 BFN On-dryer Acceptance Limits
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 69 BFN MSL Acceptance Limits
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 70 BFN Lead Unit CLTP Evaluation
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 71 BFN Lead Unit Test Plan
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 72 BFN Power Ascension Monitoring
((
))
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 73 BFN RSD Inspection Plan
- During the first two scheduled refueling outages after reaching EPU conditions, a visual inspection will be conducted on the replacement steam dryer for each unit.
The inspection plan will be consistent with the industry guidance. The inspection plan will include all accessible exterior and interior critical locations identified in the vibration and stress analyses for the Browns Ferry RSDs.
Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 75 Short Form Description ASME American Society of Mechanical Engineers ASR Alternating Stress Ratio AVS Acoustic Vibration Suppressor BFN Browns Ferry Nuclear Plant BWR Boiling Water Reactor CLTP Current Licensed Thermal Power DP Differential Pressure DW Deadweight EPU Extended Power Uprate FE Finite Element FEM Finite Element Model FIV Flow Induced Vibration FRF Frequency Response Function HF High Frequency IN Information Notice LAR License Amendment Request LF Low Frequency MASR Minimum alternating stress ratio Short Form Description MPC Multi Point Constraint MSL Main Steam Line MSLB Main Steam Line Break OBE Operating Basis Earthquake PBLE Plant Based Load Evaluation PBLE01 PBLE Input On-Dryer Based PBLE02 PBLE Input MSL Based PSD Power Spectral Density RMS Root-Mean-Squared RPV Reactor Pressure Vessel RSD Replacement Steam Dryer SDAR Steam Dryer Analysis Report SG Strain Gauge SRV Safety Relief Valve SSE Safe Shutdown Earthquake TSV Turbine Stop Valve VFD Variable Frequency Drive VPF Vane Passing Frequency Non-Proprietary Information - Class I (Public)
Browns Ferry Replacement Steam Dryer Analysis l 76 Thank you!
Questions?
Comments?