ML080510384

Slides of September 14, 2007, Meeting with Progress Energy Florida, Inc., to Discuss Power Uprates at Crystal River, Unit 3

ML080510384
Person / Time
Site:	Crystal River
Issue date:	02/15/2008
From:	Progress Energy Florida
To:	Office of Nuclear Reactor Regulation
Bailey S N , NRR/ADRO/DORL, 415-1321
References
TAC MD6750
Download: ML080510384 (28)

Text

m -m m m m m m m m m m m m m m m m m SEPTEMBER 14, 2007 Progress Energy mrm m m m nARmA Atten dee Progress Energy G 0 0 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 a Intrnrdlmntinn RnrIrirnk II iml V ~ ml I I* 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 M ---- M M M M M M M n M M M 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 A\ 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

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Level-U-grades

• .Background o Measurement Uncertainty Recapture (MUR)o Balance of Plant Efficiency (BOP)o Extended Power Uprate (EPU)M 40 2007 QProgress Energy 6

-n M M M M M M M M M M M M M M m M M 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

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• 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[]

-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 m m m m m m m m m m m m m m m m m m m 11%, 0-Nq p en m m. Im e I PROGRESS ENERGY vCITlrM. LOU M Pipe Confiigurnatlan

-LODP A Sketch P~w CorfurtlmU-oa~p A 1 1 1 A.CrTmrH Nn. lI3H[TI -V)SKETCH NO. ISHEETI NEW (0-200071 K Progress Energy 11 m m m m m m m m m m m m m m m m m m m--Oýp .p"--'0OF"Wv-f I Mz Ia I PREKiRESS ENERGY RMmL mvm Wmar m Pipe Skotch Pipe 1 A mETCIH NO. ISHEETI WV U 00 C Progress Energy 12 m m mm m 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

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.....RSIC ARDINTRACE 7 *-200701 0Progress Energy 14

---M M M M -M -M M M M m m* 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 m m M-m M Mn M Mm--- -M M-MMM Mm M M m M* 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

-m --- m m ---- -mm- mm -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 M n m --M M -M M M M MMý M M Abnra Ope0.tion o 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 Iý1'U m m M M M -M M -M M MMM Tehia Seciiato Changes* ITS Changes are Due to Required LSSS Change.* 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 0 0 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 44 0 FOCUS AR EA* 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 M M M ýM M M M M M M M M -M ý ýe 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 m m M -M Mmn M --M m -M -M M M* CA Mas an Enrg* EPU Will Result in Higher Energy Release to RB RCS T avg and thus Higher* 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 mm-n ----nnCncluon mm s 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