ML13086A549

Calvert Cliffs, Units 1 and 2, MC4672 & MC4673 - Licensee Presentation-Category 1, Public Meeting on March 20, 2013 with Respect to GL2004-02, GSI-191

ML13086A549
Person / Time
Site:	Calvert Cliffs
Issue date:	03/20/2013
From:	Constellation Energy Group, EDF Group
To:	Office of Nuclear Reactor Regulation
References
GSI-191, TAC MC4672, TAC MC4673
Download: ML13086A549 (19)

Text

CENGSMa joint venture ofConstellationEnergy,'eDFCalvert CliffsChemical Effects in Risk-Informed GSI-191ResolutionThird Discussion With NRC StaffMarch 20, 2013 Agenda" Introductions" GSI-191 Resolution Plan* Detailed review of CCNPP Chemical Effects PIRT Items* Overview of CCNPP Integrated Chemical Effects Test ProgramPlan & Test Protocola Open Items from January 8,2013 Conference Call* Schedule for future periodic meetingsCENG-2 CCNPP Attendees" Elliott Flick- General Manager Fleet Engineering" Tom Konerth -Supervisor Mechanical Design* Ken Greene -Licensing Engineer* John Swailes -Project Manager GSI-191" Craig Sellers -Project Manager RI GSI-191" Andrew Henni -Lead Design Engineer RI GSI-191* Steve Kinsey- Chemical Effects" Josh Wargo -Chemical Effects & Testing" Robert Peterson -Independent Oversight RI GSI-191CENGajoin, ventureo0D Primary Objectives of Meetingm Review & Work Towards Agreement on PhenomenaIdentification and RankingTable (PIRT) Itemsm Review Test Protocolm Work Towards Agreement onPlans &Protocols* Prefer to Divide Time Between PIRT & ProtocolDiscussionCENG-a join venture of0~~o~w4 CCNPP GSI-191 Resolution PlanSECY-12-0093 Option 2Plant Modifications-Aluminum Minimization" Mineral Wool & Other Insulation Replacement" Scissor Lift Removal-NPSH Assurance" Refueling Cavity Drain Enlargement" Recirculation Suction Header Temperature Instrumentation-Other Operational Considerations" Secure Containment Sprays* Reduce Recirculation Flow" Additional Input to PAMs for Facilitate Post-RAS Operation" Large Scale Fiber Insulation ReplacementCENG.a Iont enture of,Am =ýi 0 CCNPP GSI-191 Resolution Plan (continued)SECY-12-0093 Option 2" Testing-Integrated Chemical Effects Testing-Strainer Bypass (Penetration) Testing-Strainer Head Loss Testing, as Required" Industry Activities-Partner in STP RI GSI-191 Resolution Project-Participant in PWROG Comprehensive Analysis and TestProgramsOENG- --

CCNPP Chemical Effects PIRT Items[Calvert Cliffs PIRT Item Summary]1. Addressed in Tests similar to STP-NRC staff agreed with STP approach.-Discussion as Needed.2. Addressed in Tests similar to STP-NRC staff has yet to agree with STP approach.-Require Detailed Discussion with the NRC Staff.3. PIRT items Not Planning to Address in Tests-Require Detailed Discussion with the NRC Staff.4. Resolved PIRT-NRC has previously agreed.-May not be addressed in testing. Discussion as Needed.CENG-Page-by-Page Review of PIRT Report[CCN PP-CH LE-003]-~id~u avf nisfmtsse &ma imsbe address"d in realisuc cheimical affcti tsmag"Itormicrato a momfrissuets &hat mawt be addressed inramlsisc chmial M -t tasbmxk sudcam an-sm u mb U- ircaea fItems,~~~e~ F~WM Pm*~P=frein3.e underliugtCoemalnmim Peel dleistry1.1 RCM cooLman cbemanirtz coudfes at break1.3 By*m som p l nM.4 Coalm simy COi an cd o air mhaug.1S EC dboron2.0 Eadlaleica Coesidraftems2.Radiological effecis. corrosion reo Chanps2.3 fdyirolisl2.4 CouversiofNztmfhNOi2.5 AdditmWn debrits bed chmniad racioans30 ysl mmicaLs aed eleocal Debnts Sea.ce Tesns3.1 Crud release3.2 Jetmplagemet3.3 Debris asixpm'del/liber rateo3.4 mmects oftdissolived sillca froms RCS ad RWIST h3.5 CoautminmemtsaytrospertA.6 hu" debris 3.7 Subsuujd source ormsi lead (Pb) shielding3.2 Sehmwjpd source tarms copper (Cu)3.9 Couceem at" a amo &ngMO1 A~icytg efets3.1 Advanced metalli corrosion undaersading3.12 Simbmmariit so-c t-m- biological grwt .n debris beds3.13 Eaacter Cair fuel deposition spalingx ineca imM A noananonte mb -.E. A-ircamclafe4.0 Soldpcies ftwciotttmm4.1 P -mei-al b- .sx X4.2 Han m w sm od m" ec oas mdmati4.3 Reactor core: -edpton precipi md.4 Particulate siten s shus4.5 CopreclptanionL.0 AMlmeratean and Sottia diamical Elfects5.1 Inargmani gomneration5.2 Deposition mnd seeding I x j45.3 Q~uescaut settling ofyremqutateSA4 Transpoct pbenme precipatad-ionlcpred v4 -6.0 Orgamics and Coating6.1 BA reak omily to Orgmmc sources6.2 Oramc agglollmerationt t6.3 Organic complertin-6.4 Co*-atnugdsouonadlchg7A Clenaical Effects an Domustmam Systemn Performance7.1 ECCS pump: seal abrasion and ewosion/corrosion7.2 Beat exchangert dapositim nd cogging I7.3 Reactor coam; fuel deposition and precipitaton7A4 Reactor core: diminished beat tanssiir7.5 Reactor cr:blocking offkow passages7.6 Reactor core: particulate, settlingCENG.a ja~nt venture ofO0- -;D8 Overview of Chemical Effects Test Program" Objective-Identify Chemical Effects Head Loss on "Detector" DebrisBed-Determine Time and/or Temperature at Which ChemicalEffects Head Loss Occurs" Approach-Long-Term (-~30 Day) Integrated Chemical Effects Tests-Circulate Flow Through Repeatable "Detector" Debris Bed-Similar to STP CHLE Test ProgramCENG.a~~ j ewJ Overview of Test PlanCCNPP-CHLE-O01" Begin with Design Basis Tests-DEGB LBLOCA Conditions-Multiple Plant Configurations" First Stage Aluminum Removal" Second Stage Insulation Replacement" Potential Negligible Chemical Effects Outcome-Discuss Regulatory Response* Risk-Informed Approach-Medium & Small Breaks-Consistent with STP RI ApproachCENGt =e.reoa 0,n eOW=T &winD Overview of Integrated Test ProtocolCCNPP-CHLE-002* Use CCNPP-Specific Chemistry Conditions* Use CCNPP-Specific Materials-Insulation-Fire Barrier Material-Coatings-Lead Blanket Shielding-Exposed Concrete-Metallic Materials° Aluminum" Galvanized Steel" Copper* LeadCENG-a joint venture of0~ WeotL Overview of Integrated Test Protocol (cont.)" Simulate Bounding 30-Day Sump Temperature-Considering Pressurized Facility for >212°F-Planning Autoclave Tests to Investigate Impact of ShortDuration High Temperature Conditions* Sump Chemistry & Scaled Materials* 12 Hours at 280 OF* 12 Hours at 190 OF* Compare Relative Elemental Concentrations in Fluid* CCNPP-CHLE-005" Stepwise Reduce Temperature Day 31-Developing Basis for Temperature Plateau DurationsCENGI.A-o i en mi a L12 Detector Debris Bedm Developed in late 2008* Used for Earlier CCNPP Testing-Reviewed with NRCn Also used in IndianPoint & VogtleTesting* Very Repeatable" Very Sensitive" Composition:Sustne untt (ngrmNUKONSilicon carbide16 +/- 0.180 +/- 0.1CENG-a joint venture of-0 onW&Lo .Em I ,ON I13 Detector Debris Bed Repeatability* RepeatabilityDemonstrated inMultiple Test Programs-Calvert Cliffs-Indian Point-Vogtle* Demonstrated at2.52tI I I10-ppm Al'401.5r75-ppm Al0.5MultipleTemperatures-ppm AJand Flow Rates 0I I0 10 20 30 40 50 60 70 80Time [hr]CENG,-a joint venture of0 "em14 Detector Debris Bed Sensitivity* Sensitivity Verified byuse of WCAP-16530 '-- 4Surrogate NAS 8 Temperature 0-135F OF-0.028 ft/sec velocity _ I-1ppm NAS 4 80WCAP chemical debris2 added to loop 60* >40x Increase in Debris0 -40Bed DP 0 1 2 Time [hr]CENG&,J Page by Page Review of Test ProtocolCCNPP-CHLE-002I I I I 4 S I 4 I I a ~2 1 3 1 4 1 5 1 4 1I II ArT I a ISTOP THINK ACT AND REVIEWREACTION CHA8-iEINTIAL S(JLuJTIoNCHAM'BERA!Li iv -ýFI CI(YAL4 EFFECTSI fAO LOSS EXPEDIENT ICIHL1KAY 1FI I 2 1 5 6 7 1 1 t ICENG-a jin, ventureltf of0~r16 Possible Results" Large Chemical Effects Head Loss-Not Anticipated-<140 OF" Small Chemical Effects Head Loss-Possible-<140 OF" Negligible Chemical Effects Head Loss-PossibleCENGa joint venture of017 Open Items- January 8, 2013 Call* Piping Less than 2" NPS-1" & /" DP Instrument Piping/Tubing-3/4" Pressure & Level Instrument Piping/Tubing-3/4" Reactor Head Vent Piping* Debris Transport-NRC concerned that STP Methods not Approved-CCNPP not considering Time-Dependent Transport for StrainerHead Loss or Chemical Effects-May use Time-Dependent Transport for In-Vessel Effects* 100% Particulate Latent Debris-Current Approach is 85% Particulate 15% Fiber-Consistent with NEI 04-07hiGENGu-~~~ ~ join ~:;

Schedule for Future Periodic Meeting" CCNPP-Specific Meetings-Request Monthly Until Testing Complete-Quarterly After Testing Complete" STP-Specific Meetings-CCNPP Will Participate* STP Participant-Specific Meetings-CCNPP Will ParticipateCENG.a jon, venture of0~ ~o19