ML080510384
| ML080510384 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 02/15/2008 |
| From: | Progress Energy Florida |
| To: | Office of Nuclear Reactor Regulation |
| Bailey S , NRR/ADRO/DORL, 415-1321 | |
| References | |
| TAC MD6750 | |
| Download: ML080510384 (28) | |
Text
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m SEPTEMBER 14, 2007 Progress Energy
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nARmA Atten dee Progress Energy G
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0 Danny Roderick Dave Varner Ted Williams Ken Wilson Phil Rose Lewis Wells Bill Peavyhouse Vice President, Nuclear Projects & Construction Manager, Project Support Services Superintendent, Power Uprates Supervisor, Licensing and Regulatory Affairs Senior Engineer, CR3 Licensing Senior Engineer, Nuclear Fuels/Safety Analysis Lead Engineer, Nuclear Engineering Services AREVA
- Ed Kane
- Jeff Seals Power Uprate Technical Manager Manager, Reactor Ops and Accident Analysis 2
0 Progress Energy
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- Measurement Uncertainty Recapture P Technical Background P Configuration Update P RAI Responses P Technical Specifications P Schedule
- Extended Power Uprate Ted Williams Ken Wilson Ken Wilson
- Conclusion Danny Roderick C Progress Energy 3
Majo Prjet Organzatio
- Purpose and Vision P Allow Line Management to Retain Operational Focus P Key Projects
- Steam Generator Replacement
- Power Level Upgrades
- Dry Cask Storage
- Levy County o Critical Skill Sets
" Project Management
" Construction Management S4 A
Progress Energy
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M MUR 1.6% Increase 2609 MWt 12MWe A
7 Requested Approval 11/15/07 License Renewal Submittal Requested Approval SG Replacement Design Install A
A 0ITS Changes and A
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Relief Requests Submittal Requested Approval BOP Efficiencies Design Install Low Turbines \\ Generator \\ Heat Exchangers Gain approximately 28 MWe EPU Design Major Pumps \\ Heat Exchangers 8
Increase to A
High Pressure Turbine Retrofit Submittal approximately Requested
[7
-*-07I 3014 MWt Approval 5
N Progress Energy
Level-U-grades
- .Background o Measurement Uncertainty Recapture (MUR) o Balance of Plant Efficiency (BOP) o Extended Power Uprate (EPU)
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o Typical 'Appendix K' Increase of 1.6% to 2609 MWt o Relatively Recent (2002) Uprate to 2568 MW D Appendix K Analyses and Other Reviews Done to 102% of 2568 MWt (2619 MWt)
D MUR Remains Within that Value 100.4% of 2609 (2619 MWt)
D With Exception of Containment Analysis, the Previous Review and Approval is Bounding 7
0 Progress Energy
e The Only Significant New Analytical Effort was Associated with Containment Analysis o
Utilized Current LOCA Evaluation Model (RELAP) to Calculate Mass and Energy Release for LOCA and Approved GOTHIC Model to evaluate limiting Reactor Building Response (Previous Analysis used CRAFT/CONTEMPT) o Condensing Surface Area Input was Increased from Value in FSAR but Large Margin Retained o
Initially Submitted as Revision 0 of the LAR.
Ultimately Reviewed and Approved Under 50.59 1
C Progress Energy 0
Unncert-a-imnt-*Reductonm CALDON Check-Plus LEFM System for Highly Accurate Feedwater Flow and Temperature Measurement o
Significantly Improved Feedwater Pressure, and Main Steam Pressure and Temperature Measurements o
Rigorous Input Calculations to CR-3 Standards o
Rigorous Heat Balance Uncertainty Calculation o
Consistent Treatment Within Fixed Incore Detector Monitoring System and Automated Unit Load Demand.
CR-3 Uses the Secondary Heat Balance to:
D Calibrate the NI's (FIDMS)
D Automatically Control Output to RTP (AULD) tu Progress Energy
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Changes
- Original Design had LEFM Immediately Downstream of Installed Flow Straighteners
- Alden Testing Results P Flow Straightener Adversely Impacted LEFM
- Tested With and Without Flow Straighteners
- Reconfiguring 'A' Train Without Straightener and 'B' with Straightener Downstream 10 Progress Energy i
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0-200071 K Progress Energy 11
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m mmmmm e MUR Does NOT Result in Significant Changes P Constant RCS T avg of 579 F P RCS T hot and T cold changes < -0.4 F D FW/MS Flow Changes of -1.6 %
0 Instrument Changes are Additions Not Replacement e Unique Interface with Grid Limits Impact of MUR/EPU 0-20071 13 Progress Energy
RSIC ARDINTRACE 7
- -200701 0Progress Energy 14
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- Electrical o Recall that CR3 Output is to 500 kV grid and Offsite Power Sources are the 230 kV grid D Re-ran Transmission Calculations (Capacity, Stability, etc) for Uprates D MUR (nor EPU) Adversely Impacts Grid Stability
- Operations/Human Factors D Thorough Review of All EP/AP Actions D No Significant Impacts Identified D Testing, Training and Simulator Impacts All Addressed through our normal Engineering Change processes U
15 Progress Energy
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- Fire Protection P No Changes in Mitigation Systems P No New SSC's Which Require Protection o Minor Increase in IB Combustibles / Time to Shutdown
- Systems D Changes in System Flow and Pressures Not Expected to Impact IST Results
- Programs D FAC Model Conservatively Updated to Screen for Major Impacts D FAC Model Being Fully Updated for MUR and EPU M
2007 16 Progress Energy
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-m Reactor Vessel Materials Program 32 EFPY Calculations Retained 7 % Fluence Margin.
2002 and MUR Uprates < 7 % Impact o All Other Details Handled As Part of Robust Owners Group Program 17 J Progress Energy
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Loss of LEFM (and Associated Equipment) will be Controlled by Minor Revision to RPS Technical Specifications.
o Working with NRC and FENOC/Davis Besse for Consistency o
Alarms will Alert Operator about Losses of Required Equipment o
12 Hours to Reduce Power (Prompt, but with Time to Properly Manage Reactivity Change) o 48 Hours to Reduce RPS Overpower Trip Set-point from 104.9 to 103.3 (Allows Reasonable Time to Schedule)
Progress Energy Iý 1'U
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- Do Not Consider it Necessary to Modify SR.
P Existing Secondary Heat Balance Adequate Mw.
up to 2568 P Improved Secondary Heat Balance Needed above 2568 Mw.
e Completion Times Appropriate.
e CR3 Operated Consistent with RIS 2007-21.
1 2007 0Progress Energy 19
- CR3 Installing All MUR Related Modifications and Implementing Procedure Changes to Support Operation at 2609 MWt Upon Restart from Fall Outage (early December).
o By Mid-October We Need to Know When the NRC Expects to Issue SER.
20 Progress Energy
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0 Will Follow.NRC Guidance Will Extensively Utilize Industry Experience Expect 3014 MWt RTP Some Changes will have been Accomplished Through Other Projects D Step-up Transformers Replaced in 2007 D Turbines and Generator Modified in 2009 D Steam Generator Replacement Completed in 2009 CProgress Energy 21
Exene Pow er Upra BOP Evaluation Completed (AREVA/Progress Energy).
Identified Needed Major Components and System Changes o
Selecting Vendor to Complete Component Specifications, Conceptual and Final Designs o
NSSS Evaluation Underway (AREVA)
D Complete Accident and Transient Reanalysis D Any New Methods Will be Pursued Separately D Preliminary Fuel Cycle Designs for Next Four Cycles SProgress Energy M
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- As Requested, We Are Evaluating Separable Parallel. These Include:
o Boron Precipitation 0 Small and Intermediate LOCAs
- Secondary Depressurization
- Core Flood Line Break P LOCA Mass and Energy
- Input Validation s Impacts on Interfacing Systems NsP-e=
CProgress Energy 23
- CR3 Has a Clear and Current Licensing Basis EPU Raises Decay Heat Load and Impacts Effectiveness of Active Measures RB Sump Modifications Improved Structural Limits which Expands Dump-to-Sump Range SMonitoring Industry OE and Regulatory Feedback
- Expect Continued Compliance with Current CR3 Licensing Basis Through Minor Modifications and Adjustments to Limits on Various Active Means of Dilution
- 2007 24 C Progress Energy
- SBLOCA CLPD Results Within Appendix K Limits
- Crediting Manual Depressurization Improves PCT Results.
" Improvement Sufficient to Keep All SBLOCA Well Within Appropriate Limits.
" Atmospheric Dump Valves Will be Enlarged.
3CR3 and AREVA Continuing to Evaluate Design Details.
20107 CProgress Energy 25
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ý e Core Flood Line Break, With Off Site Power and Concurrent Single Failures of Other Train Components.
Produces Unacceptable Results o Cross Ties of DH Trains Would Resolve but Entails Piping Modification Within RB With Multiple New Components and Potential Leak Sites.
a CR3 Exploring Potential Applicability of Licensing Options D Leak-Before-Break D Eliminate Single Failure Based Upon Risk-Informed LOCA Concepts or Other Means e Further Evaluation and Dialogue Required
(*2007_
26 Progress Energy
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- CA Mas an Enrg
- Preliminary Results Acceptable
- Field Validating Certain Critical Inputs This Outage a Accurate Results Needed to Properly Systems (RB Cooling, RB Spray, and Interface with Other Service Water)
SProgress Energy 7
- -20071 27
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o MUR Proceeding on Schedule o EPU Efforts Well Underway D Using Staff Feedback from Last Meeting D Establishing More Frequent and Communications Regular o Comments or Questions?
2AO07
& Progress Energy 28