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| | number = ML060030435 | | | number = ML060030435 |
| | issue date = 12/30/2005 | | | issue date = 12/30/2005 |
| | title = 10/18/2005 Rii Presentation Revised - RF-15 Outage Information | | | title = Rii Presentation Revised - RF-15 Outage Information |
| | author name = Torres A | | | author name = Torres A |
| | author affiliation = South Carolina Electric & Gas Co | | | author affiliation = South Carolina Electric & Gas Co |
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| =Text= | | =Text= |
| {{#Wiki_filter:RF-15 Outage InformationAlan TorresPlanning and Scheduling Refuel-15 Goals*Duration: 35 Days/ Actual 39*Human Performance Events: <1/Actual 2*Recordable Injuries: <1/Actual 2 Refuel-15 Goals (Continued)*Significant/Noteworthy Events: 0/1*Post 100% -90 Day Capacity: 95.5%*Dose: 110 REM (to be adjusted based on source term) -Actual 82rem Refuel-15 Major Modifications*Main Generator Rewind*RWST Automatic Swapover Logic | | {{#Wiki_filter:RF-15 Outage Information Alan Torres Planning and Scheduling |
| *"B" RHR Pump Improved Shaft Design
| |
| *CCW Crosstrain Relief Valve*IPCS Replacement Refuel-15 Major Modifications*"B" RCP Flange Bolt Replacement*RBCU Fan Motor Upgrades
| |
| *Install New 115KV Safety Power Feed to XSW-1DX (Initial Work) ** To Provide for Decreased Core Damage Frequency Refuel-15 Items of Interest *Reactor Vessel Visual Inspection*Pressurizer Nozzle Inspection
| |
| *Flow Accelerated Corrosion Inspection Expansion
| |
| *Emergency Feed Piping Cleaning and Inspection Refuel-15 Items of Interest*Fuel Leak Inspection-Vendor CompletedRootCause*Cause was found to be improper chiller operation*More than one leak was found in one pin-Flow Validation-Enhanced Visual Inspection Main Generator Rewind
| |
|
| |
|
| Close-fitting slot wedges, with radial filler strips and conforming strips, are used to anchor the bar in place. The wedges butt end-to-end in the slot. Side ripple springs are provided to suppress bar movement in the core slots. The side ripple springs exert a sideways force on the bars, while the wedges, fillers and top ripple springs exert a radial force on the bars. | | Refuel-15 Goals |
| | * Duration: 35 Days/ Actual 39 |
| | * Human Performance Events: < 1/Actual 2 |
| | * Recordable Injuries: < 1/Actual 2 |
| | |
| | Refuel-15 Goals (Continued) |
| | * Significant/Noteworthy Events: 0/1 |
| | * Post 100% - 90 Day Capacity: 95.5% |
| | * Dose: 110 REM (to be adjusted based on source term) |
| | - Actual 82rem |
| | |
| | Refuel-15 Major Modifications |
| | * Main Generator Rewind |
| | * RWST Automatic Swapover Logic |
| | * B RHR Pump Improved Shaft Design |
| | * CCW Crosstrain Relief Valve |
| | * IPCS Replacement |
| | |
| | Refuel-15 Major Modifications |
| | * B RCP Flange Bolt Replacement |
| | * RBCU Fan Motor Upgrades |
| | * Install New 115KV Safety Power Feed to XSW-1DX (Initial Work) * |
| | * To Provide for Decreased Core Damage Frequency |
| | |
| | Refuel-15 Items of Interest |
| | * Reactor Vessel Visual Inspection |
| | * Pressurizer Nozzle Inspection |
| | * Flow Accelerated Corrosion Inspection Expansion |
| | * Emergency Feed Piping Cleaning and Inspection |
| | |
| | Refuel-15 Items of Interest |
| | * Fuel Leak Inspection |
| | - Vendor Completed Root Cause |
| | * Cause was found to be improper chiller operation |
| | * More than one leak was found in one pin |
| | - Flow Validation |
| | - Enhanced Visual Inspection |
| | |
| | Main Generator Rewind |
| | |
| | Close-fitting slot wedges, with radial filler strips and conforming strips, are used to anchor the bar in place. |
| | The wedges butt end-to-end in the slot. Side ripple springs are provided to suppress bar movement in the core slots. |
| | The side ripple springs exert a sideways force on the bars, while the wedges, fillers and top ripple springs exert a radial force on the bars. |
|
| |
|
| Photo 7 shows the new windings fully installed and painted. | | Photo 7 shows the new windings fully installed and painted. |
| Reactor Coolant Pump Flange Gasket Replacement Main Flange Leakage during RF14Main Flange Leakage on 'B'RCP located just below CCW inlet line. Not considered pressure boundary leakage, but is RCS leakage.Main Flange Bolts are carbon steel and susceptible to Boric Acid corrosion; all other RCP materials are stainless steel. | | Reactor Coolant Pump Flange Gasket Replacement |
| Turning VaneDiffuser AdapterDiffuserTe eliminate main flange leakage, pump internals must be removed and two gaskets must be replaced. Gasket LocationsRCP Internal ComponentsMain FlangeThermal Barrier
| | |
| | Main Flange Leakage during RF14 Main Flange Leakage on B RCP located just below CCW inlet line. Not considered pressure boundary leakage, but is RCS leakage. |
| | Main Flange Bolts are carbon steel and susceptible to Boric Acid corrosion; all other RCP materials are stainless steel. |
| | |
| | RCP Internal Components Te eliminate main flange leakage, pump internals must be removed and two gaskets must be replaced. |
| | Main Flange Gasket Locations Thermal Barrier Turning Vane Diffuser Diffuser Adapter |
| | |
| | B RHR Pump Modification Brief Overview of RHR Project |
| | * B RHR Pump Modification (RF-15) |
| | - Spacer coupling |
| | - Upper & lower Hub Assembly |
| | - ALARA estimate 2.75 R, Actual 1.246 R |
| | * B RHR vent modification |
| | - ALARA estimate 1 R, Actual 416 MR |
| | |
| | The Spacer Coupling Upper (Driver) |
| | Hub Assembly Lower (Pump) |
| | Hub Assembly |
| | |
| | Steam Generator Inspections |
| | |
| | Steam Generators |
| | * Summary of Inspection |
| | - No pluggable indications |
| | - No significant wear |
| | - Total sludge removed |
| | * A 68lbs |
| | * B 210lbs |
| | * C 241lbs |
| | - Overall health of generators is excellent |
| | |
| | Program Enhancements Refuel-15 Program Enhancements |
| | * Program Changes |
| | - ISP-27, Electrical Safety |
| | - FME Controls |
| | - Confined Space Program |
| | - Contractor Controls |
| | |
| | RF-15 Performance Improvements |
| | * Operating Experience Books |
| | * Daily Talking Points |
| | * Weekly Outage Newsletter |
| | * Rewarded Behaviors Program Utilize Human Performance Error Reduction Tools |
| | |
| | Questions? |
| | V.C. Summer Station Recirculation Sump Design Changes Brad Stokes Design Engineering |
| | |
| | Overview |
| | * RF-15 Activities |
| | * Analysis Results |
| | * Refueling 16 Activities |
| | * Outstanding Issues |
| | |
| | RF-15 Activities |
| | * Coatings Walkdown |
| | * Dust Sampling |
| | * Unqualified Materials |
| | * Hold-up Volume |
| | * Laser Scanning |
| | |
| | Analysis Results |
| | * ~1400 ft2 Strainer for Each Train |
| | * 9.5 ft3 Fiber Load on the sump |
| | - 2.8 ft3 TempMat |
| | - 6.7 ft3 Latent Fiber (105 lbs latent debris) |
| | * High Particulate Load |
| | * 190 ft2 Unqualified Tape, Placards, Stickers |
| | * Add 30% for Chemical Effects |
| | * Marinite Insulation is not a problem |
| | |
| | Analysis Results |
| | * ~900 ft3 RMI (Mirror Insulation) Debris |
| | * ~600 ft3 Transports to the Sump |
| | * Recirculation Sump could completely fill with RMI Debris |
| | * Effectively alters flow patterns in the sump reducing effectiveness of strainer surface area |
| | * ~500 ft3 must be stopped before the sump |
| | |
| | CFD Model Break At S/G Cross-over nozzle in Charlie Loop Red Areas will transport Mirror Insulation Foils |
| | |
| | Ongoing Analysis Work |
| | * Cumulative Effects Programs |
| | * Placement of RMI Debris Interceptors |
| | * HHSI Throttle Valves |
| | - Analysis to determine current position |
| | - Evaluation of Replacement |
| | * Sump Level for break inside the Primary Shield |
| | |
| | Refuel 16 Modifications |
| | * Complete Recirculation Sump Strainer Replacement |
| | - 2000 ft2 per train (or more) |
| | - RHR and Spray Pump Strainers Cross-tie |
| | * RMI Debris Interceptors |
| | * Trash Racks |
| | * Replace Pressurizer Cubicle Door |
| | * Block Southern Stairwell of 436 ft |
| | * Remove Toe-Kick Plate on 436 ft |
| | |
| | AECL Strainer Designs |
| | |
| | RMI Debris Interceptor Water Level 2 ft Perforate Plate or Heavy Screen FLOW 2 ft FLOOR |
| | |
| | Preliminary Sketch For Interceptors |
|
| |
|
| "B" RHR Pump Modification Brief Overview of RHR Project*"B" RHR Pump Modification (RF-15)-Spacer coupling
| | Outstanding Issues |
| -Upper & lower Hub Assembly
| | * HHSI Throttle Valves |
| -ALARA estimate 2.75 R, Actual 1.246 R*B RHR vent modification -ALARA estimate 1 R, Actual 416 MR
| | * Carbon/Graphite Pump Seals |
|
| |
|
| The Spacer Coupling Upper (Driver) Hub AssemblyLower (Pump) Hub Assembly Steam Generator Inspections
| | Summary |
| | * All Modifications, Analyses and Programmatic Changes must be in place before December 31, 2007 |
| | * GL 2004-02 response makes NRC commitments to address the issues |
| | * Major Modification planned for RF16 |
| | * On going analysis of HHSI throttle valves potentially will result in RF16 modification and SI rebalance |
|
| |
|
| Steam Generators*Summary of Inspection-No pluggable indications
| | Questions?}} |
| -No significant wear
| |
| -Total sludge removed*A 68lbs
| |
| *B 210lbs
| |
| *C 241lbs-Overall health of generators is excellent Program Enhancements Refuel-15 Program Enhancements*Program Changes-ISP-27, Electrical Safety
| |
| -FME Controls
| |
| -Confined Space Program-Contractor Controls RF-15 Performance Improvements*Operating Experience Books*Daily Talking Points
| |
| *Weekly Outage Newsletter*Rewarded Behaviors Program Utilize Human Performance Error Reduction Tools Questions?
| |
| V.C. Summer StationRecirculation Sump Design Changes Brad StokesDesign Engineering Overview*RF-15 Activities*Analysis Results
| |
| *Refueling 16 Activities
| |
| *Outstanding Issues RF-15 Activities*Coatings Walkdown*Dust Sampling*Unqualified Materials
| |
| *Hold-up Volume
| |
| *Laser Scanning Analysis Results*~1400 ft 2Strainer for Each Train*9.5 ft 3Fiber Load on the sump-2.8 ft 3TempMat-6.7 ft 3Latent Fiber (105 lbs latent debris)*High Particulate Load
| |
| *190 ft 2Unqualified Tape, Placards, Stickers*Add 30% for "Chemical Effects"
| |
| *Marinite Insulation is not a problem Analysis Results*~900 ft 3RMI (Mirror Insulation) Debris*~600 ft 3Transports to the Sump*Recirculation Sump could completely fill with RMI Debris
| |
| *Effectively alters flow patterns in the sump reducing effectiveness of strainer surface area*~500 ft 3must be stopped before the sump CFD ModelBreak At S/G Cross-over nozzle in Charlie LoopRed Areas will transport Mirror Insulation Foils Ongoing Analysis Work*Cumulative Effects Programs*Placement of RMI Debris Interceptors
| |
| *HHSI Throttle Valves-Analysis to determine current position-Evaluation of Replacement*Sump Level for break inside the Primary Shield Refuel 16 Modifications*Complete Recirculation Sump Strainer Replacement-2000 ft 2per train (or more)-RHR and Spray Pump Strainers Cross-tie*RMI Debris Interceptors
| |
| *Trash Racks
| |
| *Replace Pressurizer Cubicle Door*Block Southern Stairwell of 436 ft*Remove Toe-Kick Plate on 436 ft AECL Strainer Designs FLOOR FLOWWater Level2 ft RMI Debris InterceptorPerforate Plate or Heavy Screen2 ft Preliminary SketchFor Interceptors Outstanding Issues*HHSI Throttle Valves*Carbon/Graphite Pump Seals Summary*All Modifications, Analyses and Programmatic Changes must be in place before December 31, 2007*GL 2004-02 response makes NRC commitments to address the issues
| |
| *Major Modification planned for RF16
| |
| *On going analysis of HHSI throttle valves potentially will result in RF16 modification and SI rebalance Questions?}}
| |
|
|---|
Category:Meeting Briefing Package/Handouts
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2024-01-25
[Table view]
Category:Slides and Viewgraphs
MONTHYEARML24008A2112024-01-25025 January 2024
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Rii Presentation Revised - RF-15 Outage Information
2024-01-25
[Table view] |
Text
RF-15 Outage Information Alan Torres Planning and Scheduling
Refuel-15 Goals
- Duration: 35 Days/ Actual 39
- Human Performance Events: < 1/Actual 2
- Recordable Injuries: < 1/Actual 2
Refuel-15 Goals (Continued)
- Significant/Noteworthy Events: 0/1
- Post 100% - 90 Day Capacity: 95.5%
- Dose: 110 REM (to be adjusted based on source term)
- Actual 82rem
Refuel-15 Major Modifications
- RWST Automatic Swapover Logic
- B RHR Pump Improved Shaft Design
- CCW Crosstrain Relief Valve
Refuel-15 Major Modifications
- Install New 115KV Safety Power Feed to XSW-1DX (Initial Work) *
- To Provide for Decreased Core Damage Frequency
Refuel-15 Items of Interest
- Reactor Vessel Visual Inspection
- Pressurizer Nozzle Inspection
- Emergency Feed Piping Cleaning and Inspection
Refuel-15 Items of Interest
- Vendor Completed Root Cause
- Cause was found to be improper chiller operation
- More than one leak was found in one pin
- Flow Validation
- Enhanced Visual Inspection
Main Generator Rewind
Close-fitting slot wedges, with radial filler strips and conforming strips, are used to anchor the bar in place.
The wedges butt end-to-end in the slot. Side ripple springs are provided to suppress bar movement in the core slots.
The side ripple springs exert a sideways force on the bars, while the wedges, fillers and top ripple springs exert a radial force on the bars.
Photo 7 shows the new windings fully installed and painted.
Reactor Coolant Pump Flange Gasket Replacement
Main Flange Leakage during RF14 Main Flange Leakage on B RCP located just below CCW inlet line. Not considered pressure boundary leakage, but is RCS leakage.
Main Flange Bolts are carbon steel and susceptible to Boric Acid corrosion; all other RCP materials are stainless steel.
RCP Internal Components Te eliminate main flange leakage, pump internals must be removed and two gaskets must be replaced.
Main Flange Gasket Locations Thermal Barrier Turning Vane Diffuser Diffuser Adapter
B RHR Pump Modification Brief Overview of RHR Project
- B RHR Pump Modification (RF-15)
- Spacer coupling
- Upper & lower Hub Assembly
- ALARA estimate 2.75 R, Actual 1.246 R
- ALARA estimate 1 R, Actual 416 MR
The Spacer Coupling Upper (Driver)
Hub Assembly Lower (Pump)
Hub Assembly
Steam Generator Inspections
Steam Generators
- No pluggable indications
- No significant wear
- Total sludge removed
- Overall health of generators is excellent
Program Enhancements Refuel-15 Program Enhancements
- ISP-27, Electrical Safety
- FME Controls
- Confined Space Program
- Contractor Controls
RF-15 Performance Improvements
- Operating Experience Books
- Rewarded Behaviors Program Utilize Human Performance Error Reduction Tools
Questions?
V.C. Summer Station Recirculation Sump Design Changes Brad Stokes Design Engineering
Overview
RF-15 Activities
Analysis Results
- ~1400 ft2 Strainer for Each Train
- 9.5 ft3 Fiber Load on the sump
- 2.8 ft3 TempMat
- 6.7 ft3 Latent Fiber (105 lbs latent debris)
- 190 ft2 Unqualified Tape, Placards, Stickers
- Add 30% for Chemical Effects
- Marinite Insulation is not a problem
Analysis Results
- ~900 ft3 RMI (Mirror Insulation) Debris
- ~600 ft3 Transports to the Sump
- Recirculation Sump could completely fill with RMI Debris
- Effectively alters flow patterns in the sump reducing effectiveness of strainer surface area
- ~500 ft3 must be stopped before the sump
CFD Model Break At S/G Cross-over nozzle in Charlie Loop Red Areas will transport Mirror Insulation Foils
Ongoing Analysis Work
- Cumulative Effects Programs
- Placement of RMI Debris Interceptors
- Analysis to determine current position
- Evaluation of Replacement
- Sump Level for break inside the Primary Shield
Refuel 16 Modifications
- Complete Recirculation Sump Strainer Replacement
- 2000 ft2 per train (or more)
- RHR and Spray Pump Strainers Cross-tie
- Replace Pressurizer Cubicle Door
- Block Southern Stairwell of 436 ft
- Remove Toe-Kick Plate on 436 ft
AECL Strainer Designs
RMI Debris Interceptor Water Level 2 ft Perforate Plate or Heavy Screen FLOW 2 ft FLOOR
Preliminary Sketch For Interceptors
Outstanding Issues
- Carbon/Graphite Pump Seals
Summary
- All Modifications, Analyses and Programmatic Changes must be in place before December 31, 2007
- GL 2004-02 response makes NRC commitments to address the issues
- Major Modification planned for RF16
- On going analysis of HHSI throttle valves potentially will result in RF16 modification and SI rebalance
Questions?
