ML13086A549

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

CENGSM a joint venture of Constellation Energy,'eDF Calvert Cliffs Chemical Effects in Risk-I nform ed GSI-191 Resolution Third Discussion With NRC Staff March 20, 2013 Agenda" Introductions" GSI-191 Resolution Plan* Detailed review of CCNPP Chemical Effects PIRT Items* Overview of CCNPP Integrated Chemical Effects Test Program Plan & Test Protocol a Open Items from January 8, 2013 Conference Call* Schedule for future periodic meetings CENG-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-191 CENG ajoin, ventureo 0D Primary Objectives of Meeting m Review & Work Towards Agreement on Phenomena Identification and Ranking Table (PIRT) Items m Review Test Protocol m Work Towards Agreement on Plans &Protocols* Prefer to Divide Time Between PIRT & Protocol Discussion CENG-a join venture of 0~~o~w 4 CCNPP GSI-191 Resolution Plan SECY-12-0093 Option 2 Plant 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 Replacement CENG.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 Test Programs OENG- --

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 tasbm xk sudcam an-sm u mb U- ircaea f Items,~~~e~

F~WM Pm*~P=frein 3.e underliugtCoemalnmim Peel dleistry 1.1 RCM cooLman cbemanirtz coudfes at break 1.3 By*m som p l n M.4 Coalm simy COi an cd o air mhaug.1S EC dboron 2.0 Eadlaleica Coesidraftems 2.Radiological effecis. corrosion reo Chanps 2.3 fdyirolisl

2.4 CouversiofNztmfhNOi

2.5 AdditmWn debrits bed chmniad racioans 30 ysl mmicaLs aed eleocal Debnts Sea.ce Tesns 3.1 Crud release 3.2 Jetmplagemet

3.3 Debris

asixpm'del/liber rateo 3.4 mmects oftdissolived sillca froms RCS ad RWIST h 3.5 Coautminmemtsaytrospert A.6 hu" debris

3.7 Subsuujd

source ormsi lead (Pb) shielding 3.2 Sehmwjpd source tarms copper (Cu)3.9 Couceem at" a amo &ng MO1 A~icytg efets 3.1 Advanced metalli corrosion undaersading 3.12 Simbmmariit so-c t-m- biological grwt .n debris beds 3.13 Eaacter Cair fuel deposition spaling x ineca imM A noananonte mb -.E. A-ircamclafe

4.0 Soldpcies

ftwciotttmm 4.1 P -mei-al b- .sx X 4.2 Han m w sm od m" ec oas mdmati 4.3 Reactor core: -edpton precipi md.4 Particulate siten s shus 4.5 Copreclptanion L.0 AMlmeratean and Sottia diamical Elfects 5.1 Inargmani gomneration

5.2 Deposition

mnd seeding I x j4 5.3 Q~uescaut settling ofyremqutate SA4 Transpoct pbenme precipatad-ionlcpred v4 -6.0 Orgamics and Coating 6.1 BA reak omily to Orgmmc sources 6.2 Oramc agglollmerationt t 6.3 Organic complertin-6.4 Co*-atnugdsouonadlchg 7A Clenaical Effects an Domustmam Systemn Performance 7.1 ECCS pump: seal abrasion and ewosion/corrosion 7.2 Beat exchangert dapositim nd cogging I 7.3 Reactor coam; fuel deposition and precipitaton 7A4 Reactor core: diminished beat tanssiir 7.5 Reactor cr:blocking offkow passages 7.6 Reactor core: particulate, settling CENG.a ja~nt venture of O0- -;D 8 Overview of Chemical Effects Test Program" Objective-Identify Chemical Effects Head Loss on "Detector" Debris Bed-Determine Time and/or Temperature at Which Chemical Effects Head Loss Occurs" Approach-Long-Term

(-~30 Day) Integrated Chemical Effects Tests-Circulate Flow Through Repeatable "Detector" Debris Bed-Similar to STP CHLE Test Program CENG.a~~ j ew J Overview of Test Plan CCNPP-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 Approach CENGt =e.reo a 0,n e OW=T &winD Overview of Integrated Test Protocol CCNPP-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* Lead CENG-a joint venture of 0~ 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 Short Duration 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 Durations CENGI.A-o i en mi a L 1 2 Detector Debris Bed m Developed i n late 2008* Used for Earlier CCNPP Testing-Reviewed with NRC n Also used in Indian Point & Vogtle Testing* Very Repeatable" Very Sensitive" Composition:

Sustne untt (ngrm NUKON Silicon carbide 16 +/- 0.1 80 +/- 0.1 CENG-a joint venture of-0 onW&Lo .Em I ,ON I 13 Detector Debris Bed Repeatability

• Repeatability Demonstrated in Multiple Test Programs-Calvert Cliffs-Indian Point-Vogtle* Demonstrated at 2.5 2 t I I I 10-ppm Al'4 0 1.5 r75-ppm Al 0.5 Multiple Temperatures-ppm AJ and Flow Rates 0 I I 0 10 20 30 40 50 60 70 80 Time [hr]CENG,-a joint venture of 0 "em 14 Detector Debris Bed Sensitivity

• Sensitivity Verified by use of WCAP-16530

'-- 4 Surrogate NAS 8 Temperature 0-135F OF-0.028 ft/sec velocity _ I-1ppm NAS 4 80 WCAP chemical debris 2 added to loop 60* >40x Increase in Debris 0 -40 Bed DP 0 1 2 Time [hr]CENG&,J Page by Page Review of Test Protocol CCNPP-CHLE-002 I I I I 4 S I 4 I I a ~2 1 3 1 4 1 5 1 4 1 I II ArT I a ISTOP THINK ACT AND REVIEW REACTION CHA8-iE INTIAL S(JLuJTIoN CHAM'BER A!Li iv -ýF I CI(YAL4 EFFECTS I fAO LOSS EXPEDIENT ICIHL1 KAY 1 F I I 2 1 5 6 7 1 1 t I CENG-a jin, ventureltf of 0~r 16 Possible Results" Large Chemical Effects Head Loss-Not Anticipated

-<140 OF" Small Chemical Effects Head Loss-Possible-<140 OF" Negligible Chemical Effects Head Loss-Possible CENG a joint venture of 0 17 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 Strainer Head 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 04-07 hiGENGu-~~~ ~ 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 Participate CENG.a jon, venture of 0~ ~o 19