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{{#Wiki_filter:VOGTLE GSI-191 PROGRAMCHEMICAL EFFECTS TESTINGSTRAINER HEADLOSSTESTINGNRC PUBLIC MEETINGNOVEMBER 6, 2014 AGENDAAGENDA*Introductions*Introductions*Objectives for Meeting**Discussion of Integrated Chemical Effects Test Plans**Discussion of Strainer Head Loss Test Plans*Feedback on Documents Provided for Review Prior to MeetingMeeting*Staff Questions and Concerns*Presentation provides topic highlights only, more detailed informationiscontainedinotherdocumentsprovidedinformation is contained in other documents provided.2 SNCATTENDEESSNC ATTENDEES*KenMcElroyLicensingManager*Ken McElroy -Licensing Manager*Ryan Joyce -Licensing*PhillipGrissom-ProgramManagerGSI-191Phillip Grissom Program Manager GSI191*Tim Littleton -Lead Engineer Vogtle Design*Franchelli Febo-Vogtle Site Design*Owen Scott -Risk Informed Engineering3 OBJECTIVESOFTHEMEETINGOBJECTIVES OF THE MEETING*ProvideanoverviewofVogtleplansforfuturelarge*Provide an overview of Vogtle plans for future large scale chemical effects and strainer headloss testing, and receive any comments, concerns, or feedback from NRC staffReceiveanyNRCobservationsorfeedbackon*Receive any NRC observations or feedback on documents provided for review prior to this meeting4 VOGTLEBACKGROUNDVOGTLE BACKGROUNDVogtleDescriptionVogtle Description*Westinghouse 4-Loop PWR, 99% NUKON Insulation*~ 6 ft3 of Interam fire barrier *GEStackedDiskStrainersforECCSandContainmentSpray*GE Stacked Disk Strainers for ECCS and Containment Spray (4/unit)*765 ft2 per each of 2 ECCS trains, separate CS strainers (2)*TSPBufferTSP BufferVogtle Status*Strainer Head Loss and In-vessel issues remain open*Previouschemicaleffectstestingprovidedverypromising*Previous chemical effects testing provided very promising results, but not accepted by NRC*Vogtle elected to follow Option 2B (risk-informed resolution) of SECY-12-0093, as being piloted by STP,gpy5 DOCUMENTS PROVIDED FOR REVIEW PRIOR TO MEETING*Strainer Headloss*SNCV083-PR-05, Rev 0, "Risk-Informed Head Loss Test Strategy", October 2014*ChemicalEffects*Chemical Effects*CHLE-SNC-001, Rev. 2, "Bench Test Results for Series 1000 Tests for Vogtle Electric Generating Plant", September 2013CSC002"hlfSi3000*CHLE-SNC-007, Rev. 2, "Bench Test Results for Series 3000 Tests for Vogtle Electric Generating Plant", January 2014*CHLE-SNC-008, Rev. 3, "Column Chemical Head Loss EitlPddAtCiti"MhExperimental Procedures and Acceptance Criteria", March 2014*CHLE-SNC-020, Rev 0, "Test Plan-Vogtle Risk Informed GSI-191CHLETtT6T7dT8"Otb2014191 CHLE Test T6, T7 and T8", October 2014 6 INTEGRATED CHEMICAL EFFECTS TESTINGUNIVERSITY OF NEW MEXICO ENERCONENERCONALION SCIENCE AND TECHNOLOGY7 CHEMICAL EFFECTS TESTING OVERVIEWOVERVIEW*30-Day Integrated Tank Test w/Debris Bed System (T8)*Similar to STP Test T2, but with Vogtle Specifics*Prototypical Water Chemistry for Vogtle During LOCA*BasedonDoubleEndedGuillotineBreakofthe29"HotLegBased on Double Ended Guillotine Break of the 29 Hot Leg Piping on Loop 4 of the RCS (Weld# 11201-004-6-RB)*Additional Chemical Effects Testing*Bench Scale Tests *Prototypical Water Chemistry Tank Test w/o Debris Beds (T6)*Forced Precipitation Tank Test w/Debris Beds (T7)p()8 30-DAYINTEGRATEDTANKTEST(T8)30-DAY INTEGRATED TANK TEST (T8)*Objective:Objective: *Determine and characterize chemical precipitates generated during a simulated LOCA event*Investigate effects of potential chemical products on head lossGlfildbk*Generate test results for a simulated break case to compare with the chemical effects model*Based on Double Ended Guillotine Break of the 29" Hot Leg Piping on Loop 4 of the RCS (Weld# 11201-004-6-RB)g()*Includes:*CHLE Corrosion tank*Prototypical Vogtle Water Chemistry*Corrosion and Ancillary Materials*Vertical Column System*Multi-Particulate Debris Beds9 SUMMARY OF PREVIOUS TESTING (STP)()T1T2T3T4T5Corrosion-Al-Alscaffold-AlGSZn-Alcoupons-AlscaffoldCorrosionmaterials-Al scaffolding
-Fiberglass-Al scaffold-Fiberglass
-GS, Zn coupons-Concrete-Al, GS, Zncoupons
-Fiberglass
-Concrete-Al coupons-Fiberglass-Al scaffold-Fiberglass
-GS, Zn coupons-Concrete-Concrete-ConcreteAvgVel(ft/s)0.010.010.010.010.01pH7.227.327.227.227.25Temperature profileMB-LOCALB-LOCANon-PrototypicalNon-PrototypicalLB-LOCATesting Per.30-day30-day10-day10-day10-dayBed prep.NEINEIBlend & NEIBlend & NEIBlender10 SUMMARY OF PROPOSED TESTING (SNC)()T6T7T8Corrosionmaterials-Al, GS, Cu, CS-FiberglassConcrete-Al, GS coupons
-FiberglassConcrete-Al, GS, Cu, CS-FiberglassConcrete-Concrete-MAP, Interam, Dirt
-Epoxy,IOZ-Concrete-IOZ-Concrete-MAP, Interam, Dirt-Epoxy,IOZVelocity(ft/s)001300130013Velocity  (ft/s)0.0130.0130.013TargetpH7.27.27.2Temperature filModified LB-LOCANon-PrototypicalModified LB-LOCAprofileTesting period30-day10-day30-dayBed typeNoneMulti-ConstituentMulti-ConstituentypParticulateParticulate11 TEMPERATUREPROFILE:T8TEMPERATURE PROFILE: T812 TEMPERATUREPROFILE:T8TEMPERATURE PROFILE: T8*T6/T8 Temperature Profile (initial hour)*Best Estimate case is below 185°F within ~10 min*T6/T8 materials are immediately submerged and exposed to sprays*Nocredittakenforthetimetoactivatespraysandfillthesump13*No credit taken for the time to activate sprays and fill the sump*No credit taken for thermal lag of materials in containment CHEMICAL EFFECTS TESTING OVERVIEW30DayIntegratedTankTestw/DebrisBed*30-Day Integrated Tank Test w/Debris Bed System (T8)VerticalColumnHeadLossSystem*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCAypCyggOC*Additional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris Beds*Forced Precipitation Tank Test w/Debris Beds14 CHLE -VERTICAL HEAD LOSS TESTINGTESTING  UNMTestingFacilityUNM Testing Facility Previous Testing (NEI and Blender Beds)HeadLossResultsHead Loss Results*Debris Beds with Acrylic ParticulatesoHeadloss-RepeatabilityoHead loss Repeatability oHead loss -Stability & variability oBed sensitivity, Hysteresis & detectabilityDbiBdithEPtilt*Debris Beds with Epoxy Particulates15 CHLE UNM Testing Facility  CHLE UNM Testing Facility  16 CHLEVERTICALHEADLOSSMODULESCHLE VERTICAL HEAD LOSS MODULES17 CHLEPREVIOUSTESTINGCHLE PREVIOUS TESTINGNEI -BedsCHLE01040 mg/L of WCAPCHLE-010Blender Bed6 mg/L of WCAP CHLE Results: Repeatability60Test1(Pav = 5.71H2O")Test #1, 2, and 3 -Paint/Fiber (40/20)50(av2)Test 2 (Pav = 5.69 H2O")Test 3 (Pav = 5.97 H2O")3040Approach Velocity (from 0.05 to 0.013 ft/s)s, P (H2O")2030Head LossAcrylic PtiltSEM10Pav = 5.79 (H2O")Particulate SEM0024681012141618Time (hr)19 CHLEResults: Stability and VariabilityTest #3 -Paint/Fiber (40/20) -Long term test10Column#1600.10ApproachVelocityTest #1, 2, and 3 -Paint/Fiber (40/20)89Column#1Column #2Column #3+ 5%")40500.08ApproachVelocityHead Loss2O")67- 5%Pav=7.69ss, P (H2O"30400.06Approach Velocity (from 0.0495 to 0.013 ft/s)d Loss, P (H2After Adding Latent Debris/Dirt45- 7%+ 7%Pav=4.489Head Lo10200.020.04Pav = 5.98 (H2O") - After 5 daysPav = 5.97 (H2O") - After 11 hrsHeadBefore Adding 23051015200012345Time (Day)gLatent Debris/Dirt05050Time (hr)20 CHLEResults: Sensitivity, Hysteresis & ChemicalDetectabilityChemical Detectability70.020Pav= 6.124Pav= 6.859P=5.98(HO")20OOHOOHOOHPO4)2PO4)2PO4)2Head Loss560016P=459Pav= 5.297Pav 5.98 (H2O)O")(ft/s)1416188" Batch 3- AlBatch 2- AlOBatch 1- AlOBatch 3- Ca3(PBatch 2- Ca3(PBatch 1- Ca3(PO")340.016AV = 0.013AV = 0.014Pav= 3.29Pav= 3.942Pav= 4.59oss, P (H2ch Velocity (81012P = 15.78P = 15.27"P = 14.6"P = 14.52"P = 13.15"6"Conv = 5.12"Loss, P (H2OApproach230.012AV0010AV = 0.011AV = 0.012AV = 0.013 ft/sHead LApproac4680086ft/sP = 10.5PCHead ach Velocit y010246810120.008AV = 0.009AV = 0.0100201020304050607080901001100.086ft/sTime (hr)Time (Day)21 00514CHLE -Results: Detectability with Epoxy0.0512140.60.81.004%Criteria (%)Medium -Thick Beds with Epoxy0.0412ity (ft/s)H2O")00.20.40501001502000.4%Stability CSEMIOZ0.0310roach Velocead Loss (H050100150200Time (hr)Fiber = 20 gE36)2SEM -IOZSEM -Epoxy0.028AV00128ft/ApprHeEpoxy = 36 gIOZ = 2 g Latent Debris/Dirt = 2 gAlOOHAlOOHCa3(PO4)0.0102550751001251501752002256AV =0.0128 ft/sTime (hr)22 CHEMICAL EFFECTS TESTING OVERVIEW*30-DayIntegratedTankTestw/DebrisBedSystem(T8)30Day Integrated Tank Test w/Debris Bed System (T8)*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for Vogtle During LOCA*Additional Chemical Effects Testing*Bench Scale Tests*PrototypicalWaterChemistryTankTestw/oDebrisBeds*Prototypical Water Chemistry Tank Test w/o Debris Beds*Forced Precipitation Tank Test w/Debris Beds23 PROTOTYPICAL CHEMICALS: CHLE TANKChemical TypeVogtleQuantity(mM)CHLETank Quantity(g)SignificanceH3BO3221.415546Initial Pool ChemistryLiOH0.05041.372HCl2.3999Radiolysis Generated ChemicalsHNO30.08736.2TSP5.832582ContainmentBuffering Agent24 CHEMICALADDITIONPROTOCOLSCHEMICAL ADDITION PROTOCOLS*InitialPoolChemistry*Initial Pool Chemistry*Boric Acid*Lithium Hydroxide ([Li]=0.35 mg/L)*TSP metered in continuously during first two hours of test to desired final concentrationRadiolysisgeneratedmaterialsaddedthroughout*Radiolysis generated materials added throughout test*Batch addition at 1, 2, 5, 10, 24 hours initially*Continued additions periodically thereafter25 PROTOTYPICAL MATERIALS: CHLE TANK (1 OF 2)MaterialTypeVogtleQuantity300 gal CHLEMaterial TypeVogtleQuantityTest Quantity*Aluminum (submerged)54 ft20.026 ft2  (3.7 in2)Aluminum(exposedtospray)4,003ft21.91ft2Aluminum (exposed to spray)4,003 ft1.91 ftGalvanized Steel (submerged)19,144 ft29.13 ft2Galvanized Steel (exposed to )191,234ft291.2ft2spray)191,234 ft91.2 ftCopper (submerged)149.8 ft20.0715 ft2  (10.3 in2)Fire Extinguisher Dry Chemical gy-Monoammoniumphosphate (MAP)357 lbm0.170 lbm(77.2 g)InteramŽ E-54C  (submerged)4.448 ft32.12 x10-3ft3  (3.67 in3)(g)()26 PROTOTYPICAL MATERIALS: CHLETANK(2OF2)CHLE TANK (2 OF 2)MaterialTypeVogtleQuantity300 gal CHLEMaterial TypeVogtleQuantityTest Quantity*Carbon Steel (submerged)548.0 ft20.261 ft2  (37.6 in2)CarbonSteel(exposedto222Carbon Steel (exposed to spray)367.5 ft20.175 ft2  (25.2 in2)Concrete (submerged)2,092 ft20.998 ft2  (144 in2)IOZCoatingsZincFillerIOZ Coatings Zinc Filler(submerged)50 lbm0.024 lbm(11 g)Epoxy Coatings (submerged)2,785 lbm1.33 lbm(603 g)Latent Dirt/Dust (submerged)51 lbm0.024 lbm(11 g)Fiberglass (submerged)2,552 ft31.218 ft327 MATERIALADDITIONPROTOCOLSMATERIAL ADDITION PROTOCOLS*Submergedmetalcoupons*Submerged metal coupons*Arranged in a submergible rack system within tank*Unsubmerged metal couponsiiiii*Secured individually to a rack system within tank*Loose materials*Concrete affixed to a submerged coupon rackgp*Interam, MAP, latent dirt/dust, fiberglass and IOZ* will be loosely packed in wire mesh 'bags' submerged front of one of the tank headers** Total inventory of IOZ may be added to the vertical columns instead of to the tank if it is determined to be too fine to contain in a mesh bag28 COUPONRACKSCOUPON RACKS29 MATERIALBAGSMATERIAL BAGS30 PROTOTYPICAL MATERIALS: DEBRIS BEDSMaterial Type300 gal CHLETestQuantity*Quantity per Column (g)Test Quantity(g)IOZ CoatingsZinc Filler0.014 lbm(6.4 g)2.13Epoxy Coatings0.236 lbm(107.2 g)35.74*DebrisBedMaterialsareloadedintocolumnsLatent Dirt/Dust0.014 lbm(6.4 g)2.13Fiberglass0.055 ft3 (60 g)20Debris Bed Materials are loaded into columns before connection to tank solution with loaded tank materials*Connection between tank and column system occurs once beds reach criteria for tbilitstability31 CHEMICAL EFFECTS TESTING OVERVIEW*30-DayIntegratedTankTestw/DebrisBedSystem30Day Integrated Tank Test w/Debris Bed System*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCA*AdditionalChemicalEffectsTestingAdditional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris Bedsypy/*Forced Precipitation Tank Test w/Debris Beds32 BENCHSCALETESTS:ALUMINUMBENCH SCALE TESTS: ALUMINUM*ObjectivesObjectives*Time-Averaged Corrosion due to Variations in pH, Temperature, Phht(TSP)Phosphate (TSP)*Corrosion and release rates over a rangeoftemperatureandpHvaluesrange of temperature and pH values*Comparison with WCAP correlation for Al*Effects on Al Corrosion due to Other Corrosion Materials Present During LOCA*ZincCopperIronChlorineZinc, Copper, Iron, Chlorine33 BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM*Time-averagedcorrosionratereachedTimeaveraged corrosion rate reached maximum within 5 hoursPitiflidithi*Passivation of aluminum occurred within 24 hours (stabilized rate of release)*Direct correlation between corrosion rate and higher temperature/pH values (next two figures)34 BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM12810on (mg/L)68concentratio24Aluminum c0020406080100120Time (hr)Series110085degrCSeries150070degrCSeries160055degrC35Series 1100, 85degrCSeries 1500, 70degrCSeries 1600, 55degrC BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM403035on (mg/L)20 25concentratio510 15Aluminum c05020406080100120ATime (hr)Si1400H784Si1100H734Si1300H68436Series 1400, pH 7.84Series 1100, pH 7.34Series 1300, pH 6.84 BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM*Presenceofzincinhibitsthecorrosion*Presence of zinc inhibits the corrosion of aluminum*Presenceofcopperchlorideandiron*Presence of copper, chloride and iron ions have little appreciable effect on corrosionofaluminumcorrosion of aluminum*24-hour release of aluminum is reducedbyafactorof2-3comparedreduced by a factor of 23 compared to the WCAP-16530 equations by including passivation in the TSP itenvironment37 CHEMICAL EFFECTS TESTING OVERVIEW*30-DayIntegratedTankTestw/DebrisBedSystem30Day Integrated Tank Test w/Debris Bed System*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCA*AdditionalChemicalEffectsTestingAdditional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank ypyTest w/o Debris Beds (T6)*Forced Precipitation Tank Test w/Debris Beds38 ADDITIONALCETANKTESTSADDITIONAL CE TANK TESTS*30DayRecirculatoryTankTest(T6)*30-Day RecirculatoryTank Test (T6)*Objective: iifff*Investigate isolated effects of water chemistry on plant materials during a LOCALOCA*No vertical column system or debris beds*Prototypical VogtleWater Chemistry*Temperature Profile Identical to T839 CHEMICAL EFFECTS TESTING OVERVIEW*30-Day Integrated Tank Test w/Debris Bed Systemyg/y*Vertical Column Head Loss System*CHLE Corrosion Tank*PrototypicalWaterChemistryforVogtleDuringLOCA*Prototypical Water Chemistry for VogtleDuring LOCA*Additional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris BedsFdPiittiTkTt*Forced Precipitation Tank Test w/Debris Beds (T7)40 ADDITIONALCETANKTESTSADDITIONAL CE TANK TESTS*10-Day Integrated Tank Test (T7)*Objective: *Investigate material corrosion and any resulting ffthdldfdiittieffects on head loss under forced precipitation conditions using Vogtle quantities for boron, TSP, concrete, galvanized steel, and zinc*Corrosion Tank*Vertical Column Head Loss System*Excess aluminum submerged in CHLE Tank (parallel to T3 test for STP)*DifferentTemperatureProfilethanT6/T8*Different Temperature Profile than T6/T841 TEMPERATUREPROFILE:T7TEMPERATURE PROFILE: T742 NEXTSTEPSNEXT STEPS-*VerticalColumnHeadLoss*Vertical Column Head Loss*Explore effects of chemical surrogates on measured head loss for various fiber/particulate ratios (thin, medium, and thick debris beds)TkTt*Tank Tests*Perform T6, T7, T8 tests*BenchScaleTests*Bench Scale Tests*Zinc*Calcium*Calcium43 REFERENCESREFERENCES*CHLESNC001(BenchTests:Aluminum)*CHLE-SNC-001 (Bench Tests: Aluminum)*CHLE-SNC-007 (Bench Tests: Aluminum w/other metals))*CHLE-SNC-008 (HL Operating Procedure)*CHLE-SNC-020 (Test Plan for T6, T7 & T8)44 STRAINER HEAD LOSS TEST PLAN45 RISK-INFORMED CONVENTIONAL HEAD LOSS TEST STRATEGY*EnerconServicesInc*Enercon Services, Inc. *Tim Sande*Kip Walker*Alden Research Laboratory*Ludwig Haber46 HEADLOSSMODELHEAD LOSS MODEL*Whyisaheadlossmodelnecessary?Why is a head loss model necessary?*Thousands of break scenarios*Each with unique conditions (break flow rate, sump water level, debris loads, etc.)*Parameters that change with timeg*It is not practical to conduct a head loss test  for every scenario*Approaches for developing a risk-informed head loss model*Correlation approach has some advantages, but very difficult to implementimplement*Rule-based approach is focused on prototypical conditions for a given plant, which makes it more practical*Hybrid approach uses rule-based head loss data to create an empirical correlationp*An overall head loss test strategy is presented which includes some Vogtle-specific implementation information. Other plants are evaluating and may use all or parts of this strategy.47 HYPOTHETICALTESTRESULTSHYPOTHETICAL TEST RESULTS48= particulate/fiber ratio PRACTICALCONSIDERATIONSPRACTICAL CONSIDERATIONS *"Conservatisms"requiredtolimittestscope*Conservatisms required to limit test scope*Reduce all particulate types to one bounding surrogate*Reduce all fiber types to one bounding surrogate*Reduce all water chemistries to one bounding chemistry*Notes:*Surrogatepropertiesincludethedebristypesize*Surrogate properties include the debris type, size distribution, density, etc. *Bounding refers to a parameter value that maximizes head losswithintherangeofplantspecificconditionsloss within the range of plant-specific conditions*Test details will be fully developed in a plant-specific test plan49 PRACTICALCONSIDERATIONSPRACTICAL CONSIDERATIONS *Definitionoftestinglimitsbasedonplantspecific*Definition of testing limits based on plant-specific conditions*Maximum fiber quantity*Maximum particulate quantity*Maximum particulate to fiber ratio (max )*Useofsmall-scaletesting*Use of small-scale testing *If a small-scale version of the prototype strainer can be shown to provide the same head loss results as a large-scale strainertestprogramwillutilizesmallscaleheadlossvaluesstrainer, test program will utilize small-scale head loss values to build model*Reduced cost and schedule would allow more data to be gatheredgathered50 OVERVIEWOFTESTPROGRAMOVERVIEW OF TEST PROGRAM*TestSeriesTest Series*Large-scale test with thin-bed protocol*Large-scale test with full-load protocol*Validation of small-scale testing*Small-scale sensitivity tests*Small-scale tests with full-load protocol*Need to determine minimum fiber and maximum particulatequantity(iemaximum)requiredtoparticulate quantity (i.e., maximum ) required to generate "significant" conventional debris head loss*Significant head loss subjectively defined as 1.5 ft*Vogtle'sNPSHmarginrangesfrom10fttoover40ft,VogtlesNPSH margin ranges from 10 ftto over 40 ft, depending on pool temperature and containment pressure*Head loss below 1.5 ftis not likely to cause failures under most circumstances even if future chemical effects testing results in significantheadlosssignificant head loss51 LARGE-SCALE TEST WITH THIN-BED PROTOCOL*PurposePurpose*Identify minimum fiber load required to develop "significant" conventional head loss (maximum )*Obtain prototypical head loss data for use in validating the small-scale strainer*Measure bounding strainer head loss for thin-bed conditions*Test Protocol*Use buffered and borated water at 120 °F*Perform flow sweep to measure clean strainer head lossp*Add prototypical mixture of particulate debris (max quantities)*Batch in prototypical mixture of fiber debris (one type at Vogtle) in small increments (1/32ndinch equivalent bed thickness)*Measure stable head loss and perform flow sweep between each batch*Continue adding fiber until a head loss of 1.5 ftis observed*Perform temperature sweep*Batch in chemical precipitates (quantity and form to be determined by separate analysis/testing)52 LARGE-SCALE TEST WITH FULL-LOAD PROTOCOL*PurposePurpose*Identify fiber quantity required to fill the interstitial volume*Obtain prototypical head loss data for use in validating the small-scale strainer*Measure bounding strainer head loss for full-load conditionsg*Test Protocol*Use buffered and borated water at 120 °F*Perform flow sweep to measure clean strainer head loss*UtilizevaluecorrespondingtoboundingfiberdebrisquantitywithsameUtilize  value corresponding to bounding fiber debris quantity with same particulate load used for large-scale thin-bed test*Batch in prototypical mixture of fiber and particulate debris maintaining the desired  value for each batch*Measure stable head loss and perform flow sweep between each batch*Repeat batches and flow sweeps until full fiber and particulate load has been added*Perform temperature sweep*Batch in chemical precipitates (quantity and form to be determined by separateanalysis/testing)separate analysis/testing)53 VALIDATION OF SMALL-SCALE TESTING*Designsmallscalestrainerusingprovenscaling*Design small-scale strainer using proven scaling techniques*Test small-scale strainer under conditions similar to large-scale testing (both thin-bed and full-load protocols)Adjuststrainerortankdesignasnecessaryto*Adjust strainer or tank design as necessary to appropriately match large-scale test results*Note: If small-scale testing cannot be validated due gto competing scaling factors, the remaining tests could be performed using the large-scale strainer54 SMALL-SCALESENSITIVITYTESTSSMALL-SCALE SENSITIVITY TESTS*Purpose*Purpose*Reduce all particulate types to a single bounding surrogate*Reduce all fiber types to a single bounding surrogate (Vogtle only has one fiber type)*Reduce range of prototypical water chemistries to a single bounding chemistry*Tests will be run with a variety of representative parameters to identify the parameters for use in remaining tests*Gather data for head loss caused by various types of yypchemical surrogates55 SMALL-SCALE TESTS WITH FULL-LOAD PROTOCOL*Purposeofthesetestsaretogatherdatanecessary*Purpose of these tests are to gather data necessary to build the head loss model*Test Protocol will be similar to large-scale, full-load gtest except that the small-scale tests will be conducted using the bounding surrogates for fiber, particulateandwaterchemistryparticulate, and water chemistry*Perform series of tests (e.g., 9 tests) at different values with equivalent fiber batch sizes for each test56 RULE-BASEDIMPLEMENTATIONRULE-BASED IMPLEMENTATION57 OPTIONSFORIMPLEMENTATIONOPTIONS FOR IMPLEMENTATION*Selectheadlossvalueforboundingfiberquantity*Select head loss value for bounding fiber quantity and value*Interpolate between two fiber values and use pbounding value*Interpolate between all four points58 VOGTLEDEBRISGENERATIONVOGTLE DEBRIS GENERATION*DebrisquantitiesvarysignificantlyDebris quantities vary significantly for different weld locations and break sizes*Max Fiber (11201-004-6-RB, Hot legatbaseofSG)leg at base of SG)*Nukon: 2,235 ft3*Latent fiber: 4 ft3*Total: 2,239 ft3MaxParticulate(112010084RB*Max Particulate (11201-008-4-RB, Crossover leg)*Interam: 183 lbm*Qualified epoxy: 188 lbm*Qualified IOZ: 61 lbm*Unqualified epoxy: 2,602 lbm*Unqualified IOZ: 25 lbm*Unqualified alkyd: 32 lbm*RCS Crud: 23 lbm*Latent dirt/dust: 51 lbm*Total: 3,165 lbm59 VOGTLEDEBRISTRANSPORTVOGTLE DEBRIS TRANSPORT*Debristransportvariessignificantlydependingon*Debris transport varies significantly depending on several parameters*Break location (compartment)*Debris size distribution*Number of pumps/trains in operation*WhethercontainmentspraysareactivatedWhether containment sprays are activated*Location of unqualified coatings*Time when containment sprays are securedFiltiflifidti*Failure time for unqualified coatings*ECCS/CSS pump flow rates*Recirculation pool water level60 VOGTLE FIBER TRANSPORT FRACTIONS TO ONE RHR STRAINER*DebrisSize1Trainw/2Trainw/1Train2TrainDebris TypeSize1 Train w/ Spray2 Train w/ Spray1 Train w/out Spray2 Train w/out SprayNukonFines58%29%23%12%uoes58%9%3%%Small48%24%5%2%Large6%3%7%4%Itt0%0%0%0%Intact0%0%0%0%LatentFines58%29%28%14%* Preliminary values61 VOGTLE PARTICULATE TRANSPORT FRACTIONS TO ONE RHR STRAINER*Debris TypeSize1 Train w/ Spray2 Train w/ Spray1 Train w/out Spray2 Train w/outSpraySpraySpraySpraySprayUnqualifiedEpoxyFines58%29%44%22%Fine Chips0%0%0%0%
Small Chips0%0%0%0%Large Chips0%0%0%0%
Curled Chips58%29%5%7%UnqualifiedIOZFines58%29%12%6%UlifidAlkdFi58%29%100%50%Unqualified AlkydFines58%29%100%50%InteramFines58%29%23%12%
Qualified EpoxyFines58%29%23%12%QualifiedIOZFines58%29%23%12%Qualified IOZFines58%29%23%12%Latent dirt/dustFines58%29%28%14%
RCSCrudFines58%29%23%12%* Preliminary values62 DEBRIS TRANSPORT W/O CONTAINMENT SPRAYS*Blowdowntransportfractionsarenotchanged*Blowdown transport fractions are not changed*Distribution of debris prior to recirculation remains unchangedg*5% of fines assumed to be washed down due to condensation in containment63 VOGTLE FIBER TRANSPORT TO ONE RHR STRAINER, 1 TRAIN W/SPRAY*DebrisTypeSizeDGQuantityTransportQuantityDebris TypeSizeDG Quantity (ft3)TransportFractionQuantity(ft3)NukonFines290.558%168.5Small1001148%4805Small1,001.148%480.5Large453.66%27.2Intact489.40%0.0Total2,234.7676.3LatentFines3.858%2.2Total2,238.5678.4,* Preliminary values64 VOGTLE PARTICULATE TRANSPORT TO ONE RHR STRAINER, 1 TRAIN W/SPRAY*Debris TypeSizeDG Quantity (lbm)TransportFractionQuantity(lbm)UnqualifiedEpoxyFines319.558%185.3Fine Chips968.70%0.0 Small Chips245.40%0.0LChi53420%00Large Chips534.20%0.0Curled Chips534.258%309.8 Total2,602.0495.2UnqualifiedIOZFines25.058%14.5q%Unqualified AlkydFines32.058%18.6 InteramFines182.958%106.1 Qualified EpoxyFines187.658%108.8Qualified IOZFines61.358%35.6 Latent dirt/dustFines51.058%29.6 RCSCrudFines23.058%13.3Total316488216Total3,164.8821.665* Preliminary values HYPOTHETICAL TEST RESULTS WITH TRANSPORT CONSIDERATIONS66 SUMMARYSUMMARY*Acomprehensivetestprogramisnecessaryto*A comprehensive test program is necessary to quantify head loss for thousands of break scenarios*The rule based approach is a more practical option  ppppthan a full correlation or test for every break scenarioSimplificationsoffibertypeparticulatesurrogate*Simplifications of fiber type, particulate surrogate, and water chemistry are necessary to develop a practical test matrix*Small-scale testing may be utilized to gather a majority of the data67 CHEMICAL EFFECTS BACKUP SLIDES68 CHEMICAL EFFECTS TESTING OVERVIEW*30-Day Integrated Tank Test w/Debris Bed System (T8)yg/y()*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCAAdditionalChemicalEffectsTesting*Additional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris Beds*Forced Precipitation Tank Test w/Debris Beds69 CHLETROUBLESHOOTINGAPPROACHCHLE TROUBLESHOOTING APPROACHModificationstoCHLETank&ColumnModifications to CHLE Tank & Column System1.Singleflowheaderforeachcolumn1.Single flow header for each column2.Unified suction and discharge plumbing arrangement3.Improved flow distribution sparger4.Develop a new procedure for debris bed pppreparation and loading [CHLE-SNC-008] Stable head loss Rtblhdl(ill)Repeatable head loss (single column)Minimum variability Chemical detection70 CHLE TANK AND COLUMN MODIFICATIONSUpperstainlessPolycarbonate sectionLower stainless steel sectionUpper stainless steel sectionV6CHLE System Before ModificationsColumn Head Loss ModuleC1C2C3FMSpray systemCHLE TankC3V1C3-V2C3V3C3-V4C3-V5C3-V6C2V1C2-V2C2V3C2-V4C2-V5C2-V6To DrainC1-V1C1-V2C1V3C1-V4C1-V5C1-V6To DrainTo DrainV8CHLE System AfterC3-V1C3-V3C2-V1C2-V3C1-V1C1-V3V9V1V2V3V4V5V6V7V10V11V12To DrainV13After ModificationsV14(Sampling)71 ALUMINUMCORRELATIONDATA:BESTFITALUMINUM CORRELATION DATA: BEST FIT40L)30ation (mg/L20d concentra10Predicted0010203040Measured concentration (mg/L)72 STRAINER HEADLOSS BACKUP SLIDES73 INTRODUCTIONINTRODUCTION*35YearsofHistoryandLessonsLearned*35 Years of History and Lessons Learned*USI A-43 (opened in 1979)*Head loss testing/correlations for fiber and RMI (no particulate)*Resolved without major plant modifications*Bulletins 93-02 and 96-03*Incident at Barsebckin 1992 and similar events at Perry and Limerick showed that mixtures of fiber and particulate can cause higher head loss than previously evaluated*BWR research and plant-specific evaluations led to strainer replacementsatallUSBWRsreplacements at all U.S. BWRs*Issue resolved in early 2000s. 74 INTRODUCTIONINTRODUCTION*35YearsofHistoryandLessonsLearnedCont*35 Years of History and Lessons Learned, Cont.*GSI-191 and GL 2004-02*Based on BWR concerns, GSI-191 was opened in 1996 to ddECCStiffPWRaddress ECCS strainer performance for PWRs*Chemical effects identified as an additional contributor to strainer head loss*PWRresearchandplantspecificevaluationsledtostrainer*PWR research and plant-specific evaluations led to strainer replacements at all U.S. PWRs*Complexities in evaluations have delayed closure for most plantspas*NRC head loss guidance issued in March 200875 3MINTERAME-50SERIES3M INTERAM E-50 SERIES*MSDSandobservationsindicatethatitis30%fiber*MSDS and observations indicate that it is 30% fiber and 70% particulate*Non-QA testing with NEI fiber preparation protocol gpppindicates that it is more robust than Temp-Mat*11.7D ZOI can be justifiedTestingindicatesthat50%finesand50%small*Testing indicates that 50% fines and 50% small pieces would be conservative (i.e.. smaller than actual)*Transport metrics can be developed based on density and particle sizes, similar to other types of debrisdebris76}}

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Vogtle GSI-191 Program Chemical Effects Testing Strainer Headloss Testing NRC Public Meeting - November 6, 2014
ML15126A256
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VOGTLE GSI-191 PROGRAMCHEMICAL EFFECTS TESTINGSTRAINER HEADLOSSTESTINGNRC PUBLIC MEETINGNOVEMBER 6, 2014 AGENDAAGENDA*Introductions*Introductions*Objectives for Meeting**Discussion of Integrated Chemical Effects Test Plans**Discussion of Strainer Head Loss Test Plans*Feedback on Documents Provided for Review Prior to MeetingMeeting*Staff Questions and Concerns*Presentation provides topic highlights only, more detailed informationiscontainedinotherdocumentsprovidedinformation is contained in other documents provided.2 SNCATTENDEESSNC ATTENDEES*KenMcElroyLicensingManager*Ken McElroy -Licensing Manager*Ryan Joyce -Licensing*PhillipGrissom-ProgramManagerGSI-191Phillip Grissom Program Manager GSI191*Tim Littleton -Lead Engineer Vogtle Design*Franchelli Febo-Vogtle Site Design*Owen Scott -Risk Informed Engineering3 OBJECTIVESOFTHEMEETINGOBJECTIVES OF THE MEETING*ProvideanoverviewofVogtleplansforfuturelarge*Provide an overview of Vogtle plans for future large scale chemical effects and strainer headloss testing, and receive any comments, concerns, or feedback from NRC staffReceiveanyNRCobservationsorfeedbackon*Receive any NRC observations or feedback on documents provided for review prior to this meeting4 VOGTLEBACKGROUNDVOGTLE BACKGROUNDVogtleDescriptionVogtle Description*Westinghouse 4-Loop PWR, 99% NUKON Insulation*~ 6 ft3 of Interam fire barrier *GEStackedDiskStrainersforECCSandContainmentSpray*GE Stacked Disk Strainers for ECCS and Containment Spray (4/unit)*765 ft2 per each of 2 ECCS trains, separate CS strainers (2)*TSPBufferTSP BufferVogtle Status*Strainer Head Loss and In-vessel issues remain open*Previouschemicaleffectstestingprovidedverypromising*Previous chemical effects testing provided very promising results, but not accepted by NRC*Vogtle elected to follow Option 2B (risk-informed resolution) of SECY-12-0093, as being piloted by STP,gpy5 DOCUMENTS PROVIDED FOR REVIEW PRIOR TO MEETING*Strainer Headloss*SNCV083-PR-05, Rev 0, "Risk-Informed Head Loss Test Strategy", October 2014*ChemicalEffects*Chemical Effects*CHLE-SNC-001, Rev. 2, "Bench Test Results for Series 1000 Tests for Vogtle Electric Generating Plant", September 2013CSC002"hlfSi3000*CHLE-SNC-007, Rev. 2, "Bench Test Results for Series 3000 Tests for Vogtle Electric Generating Plant", January 2014*CHLE-SNC-008, Rev. 3, "Column Chemical Head Loss EitlPddAtCiti"MhExperimental Procedures and Acceptance Criteria", March 2014*CHLE-SNC-020, Rev 0, "Test Plan-Vogtle Risk Informed GSI-191CHLETtT6T7dT8"Otb2014191 CHLE Test T6, T7 and T8", October 2014 6 INTEGRATED CHEMICAL EFFECTS TESTINGUNIVERSITY OF NEW MEXICO ENERCONENERCONALION SCIENCE AND TECHNOLOGY7 CHEMICAL EFFECTS TESTING OVERVIEWOVERVIEW*30-Day Integrated Tank Test w/Debris Bed System (T8)*Similar to STP Test T2, but with Vogtle Specifics*Prototypical Water Chemistry for Vogtle During LOCA*BasedonDoubleEndedGuillotineBreakofthe29"HotLegBased on Double Ended Guillotine Break of the 29 Hot Leg Piping on Loop 4 of the RCS (Weld# 11201-004-6-RB)*Additional Chemical Effects Testing*Bench Scale Tests *Prototypical Water Chemistry Tank Test w/o Debris Beds (T6)*Forced Precipitation Tank Test w/Debris Beds (T7)p()8 30-DAYINTEGRATEDTANKTEST(T8)30-DAY INTEGRATED TANK TEST (T8)*Objective:Objective: *Determine and characterize chemical precipitates generated during a simulated LOCA event*Investigate effects of potential chemical products on head lossGlfildbk*Generate test results for a simulated break case to compare with the chemical effects model*Based on Double Ended Guillotine Break of the 29" Hot Leg Piping on Loop 4 of the RCS (Weld# 11201-004-6-RB)g()*Includes:*CHLE Corrosion tank*Prototypical Vogtle Water Chemistry*Corrosion and Ancillary Materials*Vertical Column System*Multi-Particulate Debris Beds9 SUMMARY OF PREVIOUS TESTING (STP)()T1T2T3T4T5Corrosion-Al-Alscaffold-AlGSZn-Alcoupons-AlscaffoldCorrosionmaterials-Al scaffolding

-Fiberglass-Al scaffold-Fiberglass

-GS, Zn coupons-Concrete-Al, GS, Zncoupons

-Fiberglass

-Concrete-Al coupons-Fiberglass-Al scaffold-Fiberglass

-GS, Zn coupons-Concrete-Concrete-ConcreteAvgVel(ft/s)0.010.010.010.010.01pH7.227.327.227.227.25Temperature profileMB-LOCALB-LOCANon-PrototypicalNon-PrototypicalLB-LOCATesting Per.30-day30-day10-day10-day10-dayBed prep.NEINEIBlend & NEIBlend & NEIBlender10 SUMMARY OF PROPOSED TESTING (SNC)()T6T7T8Corrosionmaterials-Al, GS, Cu, CS-FiberglassConcrete-Al, GS coupons

-FiberglassConcrete-Al, GS, Cu, CS-FiberglassConcrete-Concrete-MAP, Interam, Dirt

-Epoxy,IOZ-Concrete-IOZ-Concrete-MAP, Interam, Dirt-Epoxy,IOZVelocity(ft/s)001300130013Velocity (ft/s)0.0130.0130.013TargetpH7.27.27.2Temperature filModified LB-LOCANon-PrototypicalModified LB-LOCAprofileTesting period30-day10-day30-dayBed typeNoneMulti-ConstituentMulti-ConstituentypParticulateParticulate11 TEMPERATUREPROFILE:T8TEMPERATURE PROFILE: T812 TEMPERATUREPROFILE:T8TEMPERATURE PROFILE: T8*T6/T8 Temperature Profile (initial hour)*Best Estimate case is below 185°F within ~10 min*T6/T8 materials are immediately submerged and exposed to sprays*Nocredittakenforthetimetoactivatespraysandfillthesump13*No credit taken for the time to activate sprays and fill the sump*No credit taken for thermal lag of materials in containment CHEMICAL EFFECTS TESTING OVERVIEW30DayIntegratedTankTestw/DebrisBed*30-Day Integrated Tank Test w/Debris Bed System (T8)VerticalColumnHeadLossSystem*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCAypCyggOC*Additional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris Beds*Forced Precipitation Tank Test w/Debris Beds14 CHLE -VERTICAL HEAD LOSS TESTINGTESTING UNMTestingFacilityUNM Testing Facility Previous Testing (NEI and Blender Beds)HeadLossResultsHead Loss Results*Debris Beds with Acrylic ParticulatesoHeadloss-RepeatabilityoHead loss Repeatability oHead loss -Stability & variability oBed sensitivity, Hysteresis & detectabilityDbiBdithEPtilt*Debris Beds with Epoxy Particulates15 CHLE UNM Testing Facility CHLE UNM Testing Facility 16 CHLEVERTICALHEADLOSSMODULESCHLE VERTICAL HEAD LOSS MODULES17 CHLEPREVIOUSTESTINGCHLE PREVIOUS TESTINGNEI -BedsCHLE01040 mg/L of WCAPCHLE-010Blender Bed6 mg/L of WCAP CHLE Results: Repeatability60Test1(Pav = 5.71H2O")Test #1, 2, and 3 -Paint/Fiber (40/20)50(av2)Test 2 (Pav = 5.69 H2O")Test 3 (Pav = 5.97 H2O")3040Approach Velocity (from 0.05 to 0.013 ft/s)s, P (H2O")2030Head LossAcrylic PtiltSEM10Pav = 5.79 (H2O")Particulate SEM0024681012141618Time (hr)19 CHLEResults: Stability and VariabilityTest #3 -Paint/Fiber (40/20) -Long term test10Column#1600.10ApproachVelocityTest #1, 2, and 3 -Paint/Fiber (40/20)89Column#1Column #2Column #3+ 5%")40500.08ApproachVelocityHead Loss2O")67- 5%Pav=7.69ss, P (H2O"30400.06Approach Velocity (from 0.0495 to 0.013 ft/s)d Loss, P (H2After Adding Latent Debris/Dirt45- 7%+ 7%Pav=4.489Head Lo10200.020.04Pav = 5.98 (H2O") - After 5 daysPav = 5.97 (H2O") - After 11 hrsHeadBefore Adding 23051015200012345Time (Day)gLatent Debris/Dirt05050Time (hr)20 CHLEResults: Sensitivity, Hysteresis & ChemicalDetectabilityChemical Detectability70.020Pav= 6.124Pav= 6.859P=5.98(HO")20OOHOOHOOHPO4)2PO4)2PO4)2Head Loss560016P=459Pav= 5.297Pav 5.98 (H2O)O")(ft/s)1416188" Batch 3- AlBatch 2- AlOBatch 1- AlOBatch 3- Ca3(PBatch 2- Ca3(PBatch 1- Ca3(PO")340.016AV = 0.013AV = 0.014Pav= 3.29Pav= 3.942Pav= 4.59oss, P (H2ch Velocity (81012P = 15.78P = 15.27"P = 14.6"P = 14.52"P = 13.15"6"Conv = 5.12"Loss, P (H2OApproach230.012AV0010AV = 0.011AV = 0.012AV = 0.013 ft/sHead LApproac4680086ft/sP = 10.5PCHead ach Velocit y010246810120.008AV = 0.009AV = 0.0100201020304050607080901001100.086ft/sTime (hr)Time (Day)21 00514CHLE -Results: Detectability with Epoxy0.0512140.60.81.004%Criteria (%)Medium -Thick Beds with Epoxy0.0412ity (ft/s)H2O")00.20.40501001502000.4%Stability CSEMIOZ0.0310roach Velocead Loss (H050100150200Time (hr)Fiber = 20 gE36)2SEM -IOZSEM -Epoxy0.028AV00128ft/ApprHeEpoxy = 36 gIOZ = 2 g Latent Debris/Dirt = 2 gAlOOHAlOOHCa3(PO4)0.0102550751001251501752002256AV =0.0128 ft/sTime (hr)22 CHEMICAL EFFECTS TESTING OVERVIEW*30-DayIntegratedTankTestw/DebrisBedSystem(T8)30Day Integrated Tank Test w/Debris Bed System (T8)*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for Vogtle During LOCA*Additional Chemical Effects Testing*Bench Scale Tests*PrototypicalWaterChemistryTankTestw/oDebrisBeds*Prototypical Water Chemistry Tank Test w/o Debris Beds*Forced Precipitation Tank Test w/Debris Beds23 PROTOTYPICAL CHEMICALS: CHLE TANKChemical TypeVogtleQuantity(mM)CHLETank Quantity(g)SignificanceH3BO3221.415546Initial Pool ChemistryLiOH0.05041.372HCl2.3999Radiolysis Generated ChemicalsHNO30.08736.2TSP5.832582ContainmentBuffering Agent24 CHEMICALADDITIONPROTOCOLSCHEMICAL ADDITION PROTOCOLS*InitialPoolChemistry*Initial Pool Chemistry*Boric Acid*Lithium Hydroxide ([Li]=0.35 mg/L)*TSP metered in continuously during first two hours of test to desired final concentrationRadiolysisgeneratedmaterialsaddedthroughout*Radiolysis generated materials added throughout test*Batch addition at 1, 2, 5, 10, 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> initially*Continued additions periodically thereafter25 PROTOTYPICAL MATERIALS: CHLE TANK (1 OF 2)MaterialTypeVogtleQuantity300 gal CHLEMaterial TypeVogtleQuantityTest Quantity*Aluminum (submerged)54 ft20.026 ft2 (3.7 in2)Aluminum(exposedtospray)4,003ft21.91ft2Aluminum (exposed to spray)4,003 ft1.91 ftGalvanized Steel (submerged)19,144 ft29.13 ft2Galvanized Steel (exposed to )191,234ft291.2ft2spray)191,234 ft91.2 ftCopper (submerged)149.8 ft20.0715 ft2 (10.3 in2)Fire Extinguisher Dry Chemical gy-Monoammoniumphosphate (MAP)357 lbm0.170 lbm(77.2 g)InteramŽ E-54C (submerged)4.448 ft32.12 x10-3ft3 (3.67 in3)(g)()26 PROTOTYPICAL MATERIALS: CHLETANK(2OF2)CHLE TANK (2 OF 2)MaterialTypeVogtleQuantity300 gal CHLEMaterial TypeVogtleQuantityTest Quantity*Carbon Steel (submerged)548.0 ft20.261 ft2 (37.6 in2)CarbonSteel(exposedto222Carbon Steel (exposed to spray)367.5 ft20.175 ft2 (25.2 in2)Concrete (submerged)2,092 ft20.998 ft2 (144 in2)IOZCoatingsZincFillerIOZ Coatings Zinc Filler(submerged)50 lbm0.024 lbm(11 g)Epoxy Coatings (submerged)2,785 lbm1.33 lbm(603 g)Latent Dirt/Dust (submerged)51 lbm0.024 lbm(11 g)Fiberglass (submerged)2,552 ft31.218 ft327 MATERIALADDITIONPROTOCOLSMATERIAL ADDITION PROTOCOLS*Submergedmetalcoupons*Submerged metal coupons*Arranged in a submergible rack system within tank*Unsubmerged metal couponsiiiii*Secured individually to a rack system within tank*Loose materials*Concrete affixed to a submerged coupon rackgp*Interam, MAP, latent dirt/dust, fiberglass and IOZ* will be loosely packed in wire mesh 'bags' submerged front of one of the tank headers** Total inventory of IOZ may be added to the vertical columns instead of to the tank if it is determined to be too fine to contain in a mesh bag28 COUPONRACKSCOUPON RACKS29 MATERIALBAGSMATERIAL BAGS30 PROTOTYPICAL MATERIALS: DEBRIS BEDSMaterial Type300 gal CHLETestQuantity*Quantity per Column (g)Test Quantity(g)IOZ CoatingsZinc Filler0.014 lbm(6.4 g)2.13Epoxy Coatings0.236 lbm(107.2 g)35.74*DebrisBedMaterialsareloadedintocolumnsLatent Dirt/Dust0.014 lbm(6.4 g)2.13Fiberglass0.055 ft3 (60 g)20Debris Bed Materials are loaded into columns before connection to tank solution with loaded tank materials*Connection between tank and column system occurs once beds reach criteria for tbilitstability31 CHEMICAL EFFECTS TESTING OVERVIEW*30-DayIntegratedTankTestw/DebrisBedSystem30Day Integrated Tank Test w/Debris Bed System*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCA*AdditionalChemicalEffectsTestingAdditional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris Bedsypy/*Forced Precipitation Tank Test w/Debris Beds32 BENCHSCALETESTS:ALUMINUMBENCH SCALE TESTS: ALUMINUM*ObjectivesObjectives*Time-Averaged Corrosion due to Variations in pH, Temperature, Phht(TSP)Phosphate (TSP)*Corrosion and release rates over a rangeoftemperatureandpHvaluesrange of temperature and pH values*Comparison with WCAP correlation for Al*Effects on Al Corrosion due to Other Corrosion Materials Present During LOCA*ZincCopperIronChlorineZinc, Copper, Iron, Chlorine33 BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM*Time-averagedcorrosionratereachedTimeaveraged corrosion rate reached maximum within 5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />sPitiflidithi*Passivation of aluminum occurred within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> (stabilized rate of release)*Direct correlation between corrosion rate and higher temperature/pH values (next two figures)34 BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM12810on (mg/L)68concentratio24Aluminum c0020406080100120Time (hr)Series110085degrCSeries150070degrCSeries160055degrC35Series 1100, 85degrCSeries 1500, 70degrCSeries 1600, 55degrC BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM403035on (mg/L)20 25concentratio510 15Aluminum c05020406080100120ATime (hr)Si1400H784Si1100H734Si1300H68436Series 1400, pH 7.84Series 1100, pH 7.34Series 1300, pH 6.84 BENCHSCALERESULTS:ALUMINUMBENCH SCALE RESULTS: ALUMINUM*Presenceofzincinhibitsthecorrosion*Presence of zinc inhibits the corrosion of aluminum*Presenceofcopperchlorideandiron*Presence of copper, chloride and iron ions have little appreciable effect on corrosionofaluminumcorrosion of aluminum*24-hour release of aluminum is reducedbyafactorof2-3comparedreduced by a factor of 23 compared to the WCAP-16530 equations by including passivation in the TSP itenvironment37 CHEMICAL EFFECTS TESTING OVERVIEW*30-DayIntegratedTankTestw/DebrisBedSystem30Day Integrated Tank Test w/Debris Bed System*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCA*AdditionalChemicalEffectsTestingAdditional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank ypyTest w/o Debris Beds (T6)*Forced Precipitation Tank Test w/Debris Beds38 ADDITIONALCETANKTESTSADDITIONAL CE TANK TESTS*30DayRecirculatoryTankTest(T6)*30-Day RecirculatoryTank Test (T6)*Objective: iifff*Investigate isolated effects of water chemistry on plant materials during a LOCALOCA*No vertical column system or debris beds*Prototypical VogtleWater Chemistry*Temperature Profile Identical to T839 CHEMICAL EFFECTS TESTING OVERVIEW*30-Day Integrated Tank Test w/Debris Bed Systemyg/y*Vertical Column Head Loss System*CHLE Corrosion Tank*PrototypicalWaterChemistryforVogtleDuringLOCA*Prototypical Water Chemistry for VogtleDuring LOCA*Additional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris BedsFdPiittiTkTt*Forced Precipitation Tank Test w/Debris Beds (T7)40 ADDITIONALCETANKTESTSADDITIONAL CE TANK TESTS*10-Day Integrated Tank Test (T7)*Objective: *Investigate material corrosion and any resulting ffthdldfdiittieffects on head loss under forced precipitation conditions using Vogtle quantities for boron, TSP, concrete, galvanized steel, and zinc*Corrosion Tank*Vertical Column Head Loss System*Excess aluminum submerged in CHLE Tank (parallel to T3 test for STP)*DifferentTemperatureProfilethanT6/T8*Different Temperature Profile than T6/T841 TEMPERATUREPROFILE:T7TEMPERATURE PROFILE: T742 NEXTSTEPSNEXT STEPS-*VerticalColumnHeadLoss*Vertical Column Head Loss*Explore effects of chemical surrogates on measured head loss for various fiber/particulate ratios (thin, medium, and thick debris beds)TkTt*Tank Tests*Perform T6, T7, T8 tests*BenchScaleTests*Bench Scale Tests*Zinc*Calcium*Calcium43 REFERENCESREFERENCES*CHLESNC001(BenchTests:Aluminum)*CHLE-SNC-001 (Bench Tests: Aluminum)*CHLE-SNC-007 (Bench Tests: Aluminum w/other metals))*CHLE-SNC-008 (HL Operating Procedure)*CHLE-SNC-020 (Test Plan for T6, T7 & T8)44 STRAINER HEAD LOSS TEST PLAN45 RISK-INFORMED CONVENTIONAL HEAD LOSS TEST STRATEGY*EnerconServicesInc*Enercon Services, Inc. *Tim Sande*Kip Walker*Alden Research Laboratory*Ludwig Haber46 HEADLOSSMODELHEAD LOSS MODEL*Whyisaheadlossmodelnecessary?Why is a head loss model necessary?*Thousands of break scenarios*Each with unique conditions (break flow rate, sump water level, debris loads, etc.)*Parameters that change with timeg*It is not practical to conduct a head loss test for every scenario*Approaches for developing a risk-informed head loss model*Correlation approach has some advantages, but very difficult to implementimplement*Rule-based approach is focused on prototypical conditions for a given plant, which makes it more practical*Hybrid approach uses rule-based head loss data to create an empirical correlationp*An overall head loss test strategy is presented which includes some Vogtle-specific implementation information. Other plants are evaluating and may use all or parts of this strategy.47 HYPOTHETICALTESTRESULTSHYPOTHETICAL TEST RESULTS48= particulate/fiber ratio PRACTICALCONSIDERATIONSPRACTICAL CONSIDERATIONS *"Conservatisms"requiredtolimittestscope*Conservatisms required to limit test scope*Reduce all particulate types to one bounding surrogate*Reduce all fiber types to one bounding surrogate*Reduce all water chemistries to one bounding chemistry*Notes:*Surrogatepropertiesincludethedebristypesize*Surrogate properties include the debris type, size distribution, density, etc. *Bounding refers to a parameter value that maximizes head losswithintherangeofplantspecificconditionsloss within the range of plant-specific conditions*Test details will be fully developed in a plant-specific test plan49 PRACTICALCONSIDERATIONSPRACTICAL CONSIDERATIONS *Definitionoftestinglimitsbasedonplantspecific*Definition of testing limits based on plant-specific conditions*Maximum fiber quantity*Maximum particulate quantity*Maximum particulate to fiber ratio (max )*Useofsmall-scaletesting*Use of small-scale testing *If a small-scale version of the prototype strainer can be shown to provide the same head loss results as a large-scale strainertestprogramwillutilizesmallscaleheadlossvaluesstrainer, test program will utilize small-scale head loss values to build model*Reduced cost and schedule would allow more data to be gatheredgathered50 OVERVIEWOFTESTPROGRAMOVERVIEW OF TEST PROGRAM*TestSeriesTest Series*Large-scale test with thin-bed protocol*Large-scale test with full-load protocol*Validation of small-scale testing*Small-scale sensitivity tests*Small-scale tests with full-load protocol*Need to determine minimum fiber and maximum particulatequantity(iemaximum)requiredtoparticulate quantity (i.e., maximum ) required to generate "significant" conventional debris head loss*Significant head loss subjectively defined as 1.5 ft*Vogtle'sNPSHmarginrangesfrom10fttoover40ft,VogtlesNPSH margin ranges from 10 ftto over 40 ft, depending on pool temperature and containment pressure*Head loss below 1.5 ftis not likely to cause failures under most circumstances even if future chemical effects testing results in significantheadlosssignificant head loss51 LARGE-SCALE TEST WITH THIN-BED PROTOCOL*PurposePurpose*Identify minimum fiber load required to develop "significant" conventional head loss (maximum )*Obtain prototypical head loss data for use in validating the small-scale strainer*Measure bounding strainer head loss for thin-bed conditions*Test Protocol*Use buffered and borated water at 120 °F*Perform flow sweep to measure clean strainer head lossp*Add prototypical mixture of particulate debris (max quantities)*Batch in prototypical mixture of fiber debris (one type at Vogtle) in small increments (1/32ndinch equivalent bed thickness)*Measure stable head loss and perform flow sweep between each batch*Continue adding fiber until a head loss of 1.5 ftis observed*Perform temperature sweep*Batch in chemical precipitates (quantity and form to be determined by separate analysis/testing)52 LARGE-SCALE TEST WITH FULL-LOAD PROTOCOL*PurposePurpose*Identify fiber quantity required to fill the interstitial volume*Obtain prototypical head loss data for use in validating the small-scale strainer*Measure bounding strainer head loss for full-load conditionsg*Test Protocol*Use buffered and borated water at 120 °F*Perform flow sweep to measure clean strainer head loss*UtilizevaluecorrespondingtoboundingfiberdebrisquantitywithsameUtilize value corresponding to bounding fiber debris quantity with same particulate load used for large-scale thin-bed test*Batch in prototypical mixture of fiber and particulate debris maintaining the desired value for each batch*Measure stable head loss and perform flow sweep between each batch*Repeat batches and flow sweeps until full fiber and particulate load has been added*Perform temperature sweep*Batch in chemical precipitates (quantity and form to be determined by separateanalysis/testing)separate analysis/testing)53 VALIDATION OF SMALL-SCALE TESTING*Designsmallscalestrainerusingprovenscaling*Design small-scale strainer using proven scaling techniques*Test small-scale strainer under conditions similar to large-scale testing (both thin-bed and full-load protocols)Adjuststrainerortankdesignasnecessaryto*Adjust strainer or tank design as necessary to appropriately match large-scale test results*Note: If small-scale testing cannot be validated due gto competing scaling factors, the remaining tests could be performed using the large-scale strainer54 SMALL-SCALESENSITIVITYTESTSSMALL-SCALE SENSITIVITY TESTS*Purpose*Purpose*Reduce all particulate types to a single bounding surrogate*Reduce all fiber types to a single bounding surrogate (Vogtle only has one fiber type)*Reduce range of prototypical water chemistries to a single bounding chemistry*Tests will be run with a variety of representative parameters to identify the parameters for use in remaining tests*Gather data for head loss caused by various types of yypchemical surrogates55 SMALL-SCALE TESTS WITH FULL-LOAD PROTOCOL*Purposeofthesetestsaretogatherdatanecessary*Purpose of these tests are to gather data necessary to build the head loss model*Test Protocol will be similar to large-scale, full-load gtest except that the small-scale tests will be conducted using the bounding surrogates for fiber, particulateandwaterchemistryparticulate, and water chemistry*Perform series of tests (e.g., 9 tests) at different values with equivalent fiber batch sizes for each test56 RULE-BASEDIMPLEMENTATIONRULE-BASED IMPLEMENTATION57 OPTIONSFORIMPLEMENTATIONOPTIONS FOR IMPLEMENTATION*Selectheadlossvalueforboundingfiberquantity*Select head loss value for bounding fiber quantity and value*Interpolate between two fiber values and use pbounding value*Interpolate between all four points58 VOGTLEDEBRISGENERATIONVOGTLE DEBRIS GENERATION*DebrisquantitiesvarysignificantlyDebris quantities vary significantly for different weld locations and break sizes*Max Fiber (11201-004-6-RB, Hot legatbaseofSG)leg at base of SG)*Nukon: 2,235 ft3*Latent fiber: 4 ft3*Total: 2,239 ft3MaxParticulate(112010084RB*Max Particulate (11201-008-4-RB, Crossover leg)*Interam: 183 lbm*Qualified epoxy: 188 lbm*Qualified IOZ: 61 lbm*Unqualified epoxy: 2,602 lbm*Unqualified IOZ: 25 lbm*Unqualified alkyd: 32 lbm*RCS Crud: 23 lbm*Latent dirt/dust: 51 lbm*Total: 3,165 lbm59 VOGTLEDEBRISTRANSPORTVOGTLE DEBRIS TRANSPORT*Debristransportvariessignificantlydependingon*Debris transport varies significantly depending on several parameters*Break location (compartment)*Debris size distribution*Number of pumps/trains in operation*WhethercontainmentspraysareactivatedWhether containment sprays are activated*Location of unqualified coatings*Time when containment sprays are securedFiltiflifidti*Failure time for unqualified coatings*ECCS/CSS pump flow rates*Recirculation pool water level60 VOGTLE FIBER TRANSPORT FRACTIONS TO ONE RHR STRAINER*DebrisSize1Trainw/2Trainw/1Train2TrainDebris TypeSize1 Train w/ Spray2 Train w/ Spray1 Train w/out Spray2 Train w/out SprayNukonFines58%29%23%12%uoes58%9%3%%Small48%24%5%2%Large6%3%7%4%Itt0%0%0%0%Intact0%0%0%0%LatentFines58%29%28%14%* Preliminary values61 VOGTLE PARTICULATE TRANSPORT FRACTIONS TO ONE RHR STRAINER*Debris TypeSize1 Train w/ Spray2 Train w/ Spray1 Train w/out Spray2 Train w/outSpraySpraySpraySpraySprayUnqualifiedEpoxyFines58%29%44%22%Fine Chips0%0%0%0%

Small Chips0%0%0%0%Large Chips0%0%0%0%

Curled Chips58%29%5%7%UnqualifiedIOZFines58%29%12%6%UlifidAlkdFi58%29%100%50%Unqualified AlkydFines58%29%100%50%InteramFines58%29%23%12%

Qualified EpoxyFines58%29%23%12%QualifiedIOZFines58%29%23%12%Qualified IOZFines58%29%23%12%Latent dirt/dustFines58%29%28%14%

RCSCrudFines58%29%23%12%* Preliminary values62 DEBRIS TRANSPORT W/O CONTAINMENT SPRAYS*Blowdowntransportfractionsarenotchanged*Blowdown transport fractions are not changed*Distribution of debris prior to recirculation remains unchangedg*5% of fines assumed to be washed down due to condensation in containment63 VOGTLE FIBER TRANSPORT TO ONE RHR STRAINER, 1 TRAIN W/SPRAY*DebrisTypeSizeDGQuantityTransportQuantityDebris TypeSizeDG Quantity (ft3)TransportFractionQuantity(ft3)NukonFines290.558%168.5Small1001148%4805Small1,001.148%480.5Large453.66%27.2Intact489.40%0.0Total2,234.7676.3LatentFines3.858%2.2Total2,238.5678.4,* Preliminary values64 VOGTLE PARTICULATE TRANSPORT TO ONE RHR STRAINER, 1 TRAIN W/SPRAY*Debris TypeSizeDG Quantity (lbm)TransportFractionQuantity(lbm)UnqualifiedEpoxyFines319.558%185.3Fine Chips968.70%0.0 Small Chips245.40%0.0LChi53420%00Large Chips534.20%0.0Curled Chips534.258%309.8 Total2,602.0495.2UnqualifiedIOZFines25.058%14.5q%Unqualified AlkydFines32.058%18.6 InteramFines182.958%106.1 Qualified EpoxyFines187.658%108.8Qualified IOZFines61.358%35.6 Latent dirt/dustFines51.058%29.6 RCSCrudFines23.058%13.3Total316488216Total3,164.8821.665* Preliminary values HYPOTHETICAL TEST RESULTS WITH TRANSPORT CONSIDERATIONS66 SUMMARYSUMMARY*Acomprehensivetestprogramisnecessaryto*A comprehensive test program is necessary to quantify head loss for thousands of break scenarios*The rule based approach is a more practical option ppppthan a full correlation or test for every break scenarioSimplificationsoffibertypeparticulatesurrogate*Simplifications of fiber type, particulate surrogate, and water chemistry are necessary to develop a practical test matrix*Small-scale testing may be utilized to gather a majority of the data67 CHEMICAL EFFECTS BACKUP SLIDES68 CHEMICAL EFFECTS TESTING OVERVIEW*30-Day Integrated Tank Test w/Debris Bed System (T8)yg/y()*Vertical Column Head Loss System*CHLE Corrosion Tank*Prototypical Water Chemistry for VogtleDuring LOCAAdditionalChemicalEffectsTesting*Additional Chemical Effects Testing*Bench Scale Tests*Prototypical Water Chemistry Tank Test w/o Debris Beds*Forced Precipitation Tank Test w/Debris Beds69 CHLETROUBLESHOOTINGAPPROACHCHLE TROUBLESHOOTING APPROACHModificationstoCHLETank&ColumnModifications to CHLE Tank & Column System1.Singleflowheaderforeachcolumn1.Single flow header for each column2.Unified suction and discharge plumbing arrangement3.Improved flow distribution sparger4.Develop a new procedure for debris bed pppreparation and loading [CHLE-SNC-008] Stable head loss Rtblhdl(ill)Repeatable head loss (single column)Minimum variability Chemical detection70 CHLE TANK AND COLUMN MODIFICATIONSUpperstainlessPolycarbonate sectionLower stainless steel sectionUpper stainless steel sectionV6CHLE System Before ModificationsColumn Head Loss ModuleC1C2C3FMSpray systemCHLE TankC3V1C3-V2C3V3C3-V4C3-V5C3-V6C2V1C2-V2C2V3C2-V4C2-V5C2-V6To DrainC1-V1C1-V2C1V3C1-V4C1-V5C1-V6To DrainTo DrainV8CHLE System AfterC3-V1C3-V3C2-V1C2-V3C1-V1C1-V3V9V1V2V3V4V5V6V7V10V11V12To DrainV13After ModificationsV14(Sampling)71 ALUMINUMCORRELATIONDATA:BESTFITALUMINUM CORRELATION DATA: BEST FIT40L)30ation (mg/L20d concentra10Predicted0010203040Measured concentration (mg/L)72 STRAINER HEADLOSS BACKUP SLIDES73 INTRODUCTIONINTRODUCTION*35YearsofHistoryandLessonsLearned*35 Years of History and Lessons Learned*USI A-43 (opened in 1979)*Head loss testing/correlations for fiber and RMI (no particulate)*Resolved without major plant modifications*Bulletins 93-02 and 96-03*Incident at Barsebckin 1992 and similar events at Perry and Limerick showed that mixtures of fiber and particulate can cause higher head loss than previously evaluated*BWR research and plant-specific evaluations led to strainer replacementsatallUSBWRsreplacements at all U.S. BWRs*Issue resolved in early 2000s. 74 INTRODUCTIONINTRODUCTION*35YearsofHistoryandLessonsLearnedCont*35 Years of History and Lessons Learned, Cont.*GSI-191 and GL 2004-02*Based on BWR concerns, GSI-191 was opened in 1996 to ddECCStiffPWRaddress ECCS strainer performance for PWRs*Chemical effects identified as an additional contributor to strainer head loss*PWRresearchandplantspecificevaluationsledtostrainer*PWR research and plant-specific evaluations led to strainer replacements at all U.S. PWRs*Complexities in evaluations have delayed closure for most plantspas*NRC head loss guidance issued in March 200875 3MINTERAME-50SERIES3M INTERAM E-50 SERIES*MSDSandobservationsindicatethatitis30%fiber*MSDS and observations indicate that it is 30% fiber and 70% particulate*Non-QA testing with NEI fiber preparation protocol gpppindicates that it is more robust than Temp-Mat*11.7D ZOI can be justifiedTestingindicatesthat50%finesand50%small*Testing indicates that 50% fines and 50% small pieces would be conservative (i.e.. smaller than actual)*Transport metrics can be developed based on density and particle sizes, similar to other types of debrisdebris76

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