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==SUBJECT:==
==SUBJECT:==
TRIPTOLIVERMORE,STANFORDRESEARCHINSTITUTEANDGENERALELECTRICTODISCUSSMARKIIPOOLDYNAMICLOADS~kkddThepurposeofthistripwastodiscussseveralanalyticalandexperimentalprogramsrelated'oMarkIIpooldynamicloads.Acopyoftheattendees,agendaandslidesdistributedatthemeetingareattached.Inthemorningofthefirstday(Wednesday)wemetwithLivermorepersonneltodiscusstheLivermore/DORprogramtostudyfluidstructureinteractions(FSI)intheMark-IMonticelloSafetyReliefValve(SRV)tests.aWednesdayafternoonwemetwithpersonnelatStanfordResearchInstitutetodiscusstheir1/13scaleMarkIIpoolswelltests.ThursdaywemetwithrepresentativesoftheMarkIIowner'sgroupandGeneralElectrictodiscussthestatusofseveraltasksintheirMarkIIpooldynamicloadprogram.Asummaryof-thetopicsdiscussedinthemeetingsisprovidedbelow.~SumarLivermoreMeetinEdMcCauleyofLivermoresummarizedtheresultsoftheFY77LivermoreFSIprogram.TheirstudyofSRV-FSIeffectsshowedatrendofdecreasingloadswithincreasingwallflexibility.Themajorlimitationsoftheirstudyincludedtheplanesectionmodelingofthecontainmentandthemodelingofthesource.Theseassumptionsresultinanover-estimateofthedependenceofSRVloadsonwallflexibility.FuturestudiesbyLivermoreareaimedatevaluatingtheimportanceoftheseparameters.
TRIPTOLIVERMORE,STANFORDRESEARCHINSTITUTEANDGENERALELECTRICTODISCUSSMARKIIPOOLDYNAMICLOADS~kkddThepurposeofthistripwastodiscussseveralanalyticalandexperimentalprogramsrelated'oMarkIIpooldynamicloads.Acopyoftheattendees,agendaandslidesdistributedatthemeetingareattached.Inthemorningofthefirstday(Wednesday)wemetwithLivermorepersonneltodiscusstheLivermore/DORprogramtostudyfluidstructureinteractions(FSI)intheMark-IMonticelloSafetyReliefValve(SRV)tests.aWednesdayafternoonwemetwithpersonnelatStanfordResearchInstitutetodiscusstheir1/13scaleMarkIIpoolswelltests.ThursdaywemetwithrepresentativesoftheMarkIIowner'sgroupandGeneralElectrictodiscussthestatusofseveraltasksintheirMarkIIpooldynamicloadprogram.Asummaryof-thetopicsdiscussedinthemeetingsisprovidedbelow.~SumarLivermoreMeetinEdMcCauleyofLivermoresummarizedtheresultsoftheFY77LivermoreFSIprogram.TheirstudyofSRV-FSIeffectsshowedatrendofdecreasingloadswithincreasingwallflexibility.Themajorlimitationsoftheirstudyincludedtheplanesectionmodelingofthecontainmentandthemodelingofthesource.Theseassumptionsresultinanover-estimateofthedependenceofSRVloadsonwallflexibility.FuturestudiesbyLivermoreareaimedatevaluatingtheimportanceoftheseparameters.
h  
h APR35]g7gStandfordResearchInstituteMeetinThepurposeofthismeetingwastodiscussthepreliminaryresultsofthe'MarkII1/13scalesingleventtests.TheseSRItestsconsistedofairchargingtests..Shakedowntestswereconductedtodeterminetheaffectofwatervaporinscaleairtestsonpoolswellphenomenon.ThepreliminaryresultsfortheSRItestsshoweddifferencesfromsimilartestsconductedatMIT.Thepurposeofthemeetingwastoidentifyreasonsforthedifferences.AdditionalSRItestingwas.discussedtoresolvedifferencesinresults.Hhi'leattheSRIfacilitywetouredthepooldynamicteststands.MenotedthatSRIisconductingEPRIfundedteststoinvestigatesteamchuggingphenomena.Testsarebeingconductedatthreedifferentscalesincludingsingleandmultiventtests.Thistestprogramisastudyofthefundamentalphenomenaofchugging.ThisprogramisnotapartoftheMarkIIownergroupsupportingprogram.MarkIIOwner'sGrouMeetinThetopicsdiscussedinthismeetingarelistedintheattachedmeetingagenda.Asummaryofdiscussionfollows:1.MonticelloSRV-MarkIIFluidStructureInteractionStudiesOr.H.TangofGeneralElectricdiscussedtheresultsofstudiesatGEtodeterminetheeffectofcontainmentwallflexibilityonthemeasuredSRVloadsintheMonticellotests.GEperformedcalculationssimilartothoseperformedbyLivermore.TheirplanestraincalculationsutilizedsimilarassumptionsofcontainmentrigidityandloadsourcetothoseperformedbyLivermore.UndertheseconditionstheyobservedthesametrendofreducingloadwithincreasingwallflexibilityasobservedintheLivermorestudies.However,theGEstudieswereextendedtoincludeaxisymmetriccalculations,3Dmodelingofatorussegmentandamultiplepulsesource.Resultsofthesestudiesshowthatwallflexibilityamplifiestheloads.ThisconclusioncontradictstheLivermore2Dstudy.Inadditiontheyconductedanalytical-experimentalcomparisonsusingtheirmodelandtheMonticellodata.TheuseofthemorerealisticassumptionsintheanalyticalmodelsubstantiatedtheMarkIIowner'sclaimthattheMonticellobenchmarkisvalid.TheMonticelloFSIstudyisnowconsideredcompletebytheMarkIIowner'sgroup.DocumentationwillbeprovidedtotheNRCbytheendofMay1978, InourMarchmeetingwiththeMarkIIowner'sgroupwediscussedthedesirabilityofformulatingaconservativechuggingimpulseloadtoresolve4TFSIquestions.Dr.HealzerofGeneralElectricdiscussedtheirplanforthistask.TheyshouldcompletethisstudybyearlyJune1978.AstatusreportwillbeprovidedatthenextMarkIIowner'smeeting.ThismeetingistentativelyscheduledformidMay1978,InadditionwerequestedthatDr.Healzerprovideus,withinthenextfew'eeks,anoutlineoftheobjectiveofthistask.3.SRVPoolTemeratureLimitsT.SuofNRCprovidedanNRCstatusreportontheissueofSRVpooltemperaturelimits.Hestatedthatbasedonourcurrentreviewofthesmallscaleteststhereisinadequatesupportingdatatojustifythecurrentpooltemperaturelimitsforrams-headreliefvalvedevices.AsaresultofourreviewwearepreparinganNRCpositionrequiringtheuseofquenchertypedevicesinMarkIIplantssincethesedeviceshavehigherpooltemperaturelimits.4.DFFRLeadPlantSRVLoadsT.SuofNRCprovidedastatusreportontheNRCreviewoftheMarkIIramsheadmodel.Hehighlightedseveraldeficienciesinthecurrentmodel.Wealsodiscussedtheuseoftheramsheadmodelforthoseleadplantswhichhavecommittedtoaswitchfromaramsheadtoaquencherdevice.H.BrinkmanrepresentingtheMarkIIowner'sgroupstatedthattheirplansaretousethecurrentramsheadmodeltopredictSRVloadsforplantswithquencherdevices.Testprogramsarebeingdevelopedtoshowthattheuseoftheseramsheadloadsforquencherdevicesisaconservativeapproach.CurrentplanscallforcompletionoftheconfirmatorytestspriortooperationofthefirstMarkIIplant.5,PSTFImactLoadsG.MaiseofBNLoutlinedtheresultsoftheNRCevaluationofMarkIIPoolDynamic-impactloads.ThisstudyconcludedthatthecurrentDFFRimpactloadspecificationisinadequateinthat  
-2-APR35]g7gStandfordResearchInstituteMeetinThepurposeofthismeetingwastodiscussthepreliminaryresultsofthe'MarkII1/13scalesingleventtests.TheseSRItestsconsistedofairchargingtests..Shakedowntestswereconductedtodeterminetheaffectofwatervaporinscaleairtestsonpoolswellphenomenon.ThepreliminaryresultsfortheSRItestsshoweddifferencesfromsimilartestsconductedatMIT.Thepurposeofthemeetingwastoidentifyreasonsforthedifferences.AdditionalSRItestingwas.discussedtoresolvedifferencesinresults.Hhi'leattheSRIfacilitywetouredthepooldynamicteststands.MenotedthatSRIisconductingEPRIfundedteststoinvestigatesteamchuggingphenomena.Testsarebeingconductedatthreedifferentscalesincludingsingleandmultiventtests.Thistestprogramisastudyofthefundamentalphenomenaofchugging.ThisprogramisnotapartoftheMarkIIownergroupsupportingprogram.MarkIIOwner'sGrouMeetinThetopicsdiscussedinthismeetingarelistedintheattachedmeetingagenda.Asummaryofdiscussionfollows:1.MonticelloSRV-MarkIIFluidStructureInteractionStudiesOr.H.TangofGeneralElectricdiscussedtheresultsofstudiesatGEtodeterminetheeffectofcontainmentwallflexibilityonthemeasuredSRVloadsintheMonticellotests.GEperformedcalculationssimilartothoseperformedbyLivermore.TheirplanestraincalculationsutilizedsimilarassumptionsofcontainmentrigidityandloadsourcetothoseperformedbyLivermore.UndertheseconditionstheyobservedthesametrendofreducingloadwithincreasingwallflexibilityasobservedintheLivermorestudies.However,theGEstudieswereextendedtoincludeaxisymmetriccalculations,3Dmodelingofatorussegmentandamultiplepulsesource.Resultsofthesestudiesshowthatwallflexibilityamplifiestheloads.ThisconclusioncontradictstheLivermore2Dstudy.Inadditiontheyconductedanalytical-experimentalcomparisonsusingtheirmodelandtheMonticellodata.TheuseofthemorerealisticassumptionsintheanalyticalmodelsubstantiatedtheMarkIIowner'sclaimthattheMonticellobenchmarkisvalid.TheMonticelloFSIstudyisnowconsideredcompletebytheMarkIIowner'sgroup.DocumentationwillbeprovidedtotheNRCbytheendofMay1978,  
 
-3-InourMarchmeetingwiththeMarkIIowner'sgroupwediscussedthedesirabilityofformulatingaconservativechuggingimpulseloadtoresolve4TFSIquestions.Dr.HealzerofGeneralElectricdiscussedtheirplanforthistask.TheyshouldcompletethisstudybyearlyJune1978.AstatusreportwillbeprovidedatthenextMarkIIowner'smeeting.ThismeetingistentativelyscheduledformidMay1978,InadditionwerequestedthatDr.Healzerprovideus,withinthenextfew'eeks,anoutlineoftheobjectiveofthistask.3.SRVPoolTemeratureLimitsT.SuofNRCprovidedanNRCstatusreportontheissueofSRVpooltemperaturelimits.Hestatedthatbasedonourcurrentreviewofthesmallscaleteststhereisinadequatesupportingdatatojustifythecurrentpooltemperaturelimitsforrams-headreliefvalvedevices.AsaresultofourreviewwearepreparinganNRCpositionrequiringtheuseofquenchertypedevicesinMarkIIplantssincethesedeviceshavehigherpooltemperaturelimits.4.DFFRLeadPlantSRVLoadsT.SuofNRCprovidedastatusreportontheNRCreviewoftheMarkIIramsheadmodel.Hehighlightedseveraldeficienciesinthecurrentmodel.Wealsodiscussedtheuseoftheramsheadmodelforthoseleadplantswhichhavecommittedtoaswitchfromaramsheadtoaquencherdevice.H.BrinkmanrepresentingtheMarkIIowner'sgroupstatedthattheirplansaretousethecurrentramsheadmodeltopredictSRVloadsforplantswithquencherdevices.Testprogramsarebeingdevelopedtoshowthattheuseoftheseramsheadloadsforquencherdevicesisaconservativeapproach.CurrentplanscallforcompletionoftheconfirmatorytestspriortooperationofthefirstMarkIIplant.5,PSTFImactLoadsG.MaiseofBNLoutlinedtheresultsoftheNRCevaluationofMarkIIPoolDynamic-impactloads.ThisstudyconcludedthatthecurrentDFFRimpactloadspecificationisinadequateinthat  


4APR2g]97Btheimpulseloadspecificationdoesnotincludeaconservativepulseduration.Inadditionnoconsiderationhasbeengiventotheaffectoftargetgeometryontheimpactload.TheMarkIIowner'sstatedthattheyhadnothadsufficienttimetoreviewthebasisforourconclusionsnortheimpactofthispotentialloadmodificationonequipmentinspecificMarkIIplants.TheirpreliminaryreviewoftheBNLstudyhasnotuncoveredanydeficiencesintheBNLstudy.However,conservatismsinthecurrentimpactloadspecificationcouldbebalancedagainsttheserecentlyidentifiednonconservatisms.AtthenextMarkIIowner'smeetinginmid-MaytheMarkIIownerswillprovideustheirevaluationoftheBNLstudyandareviewoftheimpactofthisloadmodificationonspecificMarkIIplants.g.(<,6I.Peltier,ProjectManagerLightHaterReactorsBranchNo.1DivisionofProjectManagement
4APR2g]97Btheimpulseloadspecificationdoesnotincludeaconservativepulseduration.Inadditionnoconsiderationhasbeengiventotheaffectoftargetgeometryontheimpactload.TheMarkIIowner'sstatedthattheyhadnothadsufficienttimetoreviewthebasisforourconclusionsnortheimpactofthispotentialloadmodificationonequipmentinspecificMarkIIplants.TheirpreliminaryreviewoftheBNLstudyhasnotuncoveredanydeficiencesintheBNLstudy.However,conservatismsinthecurrentimpactloadspecificationcouldbebalancedagainsttheserecentlyidentifiednonconservatisms.AtthenextMarkIIowner'smeetinginmid-MaytheMarkIIownerswillprovideustheirevaluationoftheBNLstudyandareviewoftheimpactofthisloadmodificationonspecificMarkIIplants.g.(<,6I.Peltier,ProjectManagerLightHaterReactorsBranchNo.1DivisionofProjectManagement

Revision as of 06:17, 3 May 2018

Nine Mile Point, Unit 2 - Letter Responding to the April 6, 1978 Letter Requesting Additional Information Regarding a Request for an Extension of the Latest Completion Date for Construction Permit No. CPPR-112
ML18018A938
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 04/28/1978
From: Rhode G K
Niagara Mohawk Power Corp
To: Case E G
Office of Nuclear Reactor Regulation
References
Download: ML18018A938 (72)


Text

REGULATORYINFQRI'fATIONDISTRIBUTIONSYSTEM(RIDS)DISTRIBUTIONFORINCOMINGMATERIAL50-410REC:CASEEGNRCORG:RHODEGKNIAGARAMOHAWKPWRDOCDATE:04/28/78DATERCVD:05/Oi/78DOCTYPE:LETTERNOTARIZED:NOCOPIESRECEIVED

SUBJECT:

LTR1ENCL1INFOREQUESTEDBYS.VARGAINLTRDTD04/06/78RE:UTILITYREQUESTFOREXTENSIONOFLATESTCOMPLETIONDATEFORCPPR-112.PLANTNAME:NINEMILEPOINT-UNIT2REVIEWERINITIAL:XBTDISTRIBUTORINITIAL:~DISTRIBUTIONOFTHISMATERIALISASFOLLOWSREQUESTSFOREXEMPTIONS(ALLTYPES)<DISTRIBUTIOI4CODEB006)FORACTION'ORINFO:FORIl4FO:INTERNAL:EXTERNAL:BRCHIEFVARGA+~~W/ENCLLICASSTSERVICE++W/ENCLMOQRE++LTRONLY(i)N.LY<1)REGFILE++W/ENTABELL+4W/ENCLLPDRSOSWEGO)NY+>W/ENCLACRSCATB4~~W/16ENCLPROSMGRKANE++W/ENCLREGAN++LTRONLY(i)DUNCAN4+LTRONLY<1)NRCPDR++W/ENCLJMILLER>+W/ENCLE.QASF~/E'~M-'ISTRIBUTION:LTR30ENCL26SIZE:2P"CONTROLNBR:781210181THEEND 1AiIAIh NIAGARAMOHAWKPOWERCORPORATIONNIAGARA'~MOHAWK300ERIEBOULEVARO,WESTSYRACUSE.N.Y.I3202April28,1978Mr.EdsonG.Case,ActingDirectorOfficeofNuclearReactorRegulationU.S.NuclearRegulatoryCommissionWashington,D.C.20555

DearMr.Case:

8~.",+p~17Re:NineMilePointUnit2DocketNo.50-410EnclosedistheadditionalinformationthatMr.VargaofyourstaffrequestedinaletterdatedApril6,1978regardingtheNiagaraMohawkPowerCorporationrequestforanextensionofthelatestcompletiondateforConstructionPermitNo.CPPR-112.Thisinformationquantifiestheextentofthedelayassociatedwitheachofthethreecausescited.Italsoidentifiesonatimescale,thepointatwhichthedelaywasincurredandtheextentitaloneaffectedtheoverallscheduleforcompletionoftheplant.ThedelaysshowgoodcauseforextendingthelatestdateofConstructionPermitNo.CPPR-112toDecember31,1984.Verytrulyyours,NIAGARAMOHAWKPOWERCORPORATIONGerld.Rhode,VicePresidentSystemProjecManagementNLR/szdEnclosure781210)agSoo<s(a+I/g

.f'*<r4C~l)1.p'~~4/)44p'1)llI4lI 7/73I/747/74I/757/75i/767/767/77I/77I/787/78I/797/79CPISSUE774CPEXPIRATIN7/78(2)13)i3)iv(3(3)iii(3)v(3vi(3)i3)vii(3)viiiDELAYCAUSE(3)xDATEOFDELAYDURATIONOFDELAYDELAYCAUSEDATEOFDELAYDURATIONOFDELAY(I)NEEDFORPOWERPOSTPONED(2)LACKOFFUNDSATREASONABLERATES(3)iMARK3ELARDESIGNCHANGESilSTUDYOFGEOLOGICALFEATURESiiiCHANGEFROMONCE-THROUGHTOCLOSEDLOOPCOOLINGivELECTRICALRACEWAYANDREACTORBUILDINGSTRUCTURALREDESIGNvLABORPROBLEMSNCLUDDIGWORKSTOPPAGESviWELDERSHORTAGEANDMATERIALPROCUREMENTDELAYSDEC.Is1973NOV.Is1974SEP.I,1976DEC.13s1976JUL.19s1976JANIs1975JUN.IsISNOCTIsl977DEC.Is197772MO.12MO.12MO.12Ma4MO.9MO.3MO.IMO.12MO.viiDELAYINGRANTINGORIGINALCONSTRUCTIONPERMITviiiIMPLEMENTATIONOFNRCREQUIREMENTFORECCSPUMPFLOODPROTECTIONixIMPLEMENTATIONOFPIPEWHIPPROTECTIONREQUNIEMENTSOFRG.1.46xRG.1.89CLASSIEEQUIPMENTREQUIREMENTS.JUII,1973OCT.I,1973MAYI,1973NOV.I,1974CONSTRUCTIONDELAYSNINEMILEPOINT,UNIT212MO.IOMO.12MO.6MO.

TELECOPIEDTON0AQW5fH-C(FROAy/~~~at.mTIViEQ;PPDC.TE/~la-~~/

f<~rIEOII(~C+WpO~A.0C>nqo4+*+4DocketNo.50-410UNITEDSTATESNUCRREGULATORYCOMMISSIONREGIONI631PARKAVENUEKINGOFPRUSSIA,PENNSYLVANIAI9406g6APRl978DRAVOCorporationPipeFabricationDivisionATTN:Mr.GustavSchwabVicePresidentandGeneralManager1115GilmanAvenueMarietta,Ohio45750Gentlemen:

Subject:

NiagaraMohawkPowerCorporationReportofJanuary30,1978RegardingtheDravoPipeFabricationDivisiongualityAssuranceProgramMereceivedyourletterofApril7,1978,concerningthesubjectreport.Yourletterwill'bemadeapartofthepublicrecordasyourequested.Sincerely,IBoceH.GrierDirector 1('il f1OC~l."lIIpIIPCf"ilf?LocaIl'tll:TICIlf?RRe1din.fI.!lf?-:IfiI.(,a-oP,.I'>o'",.IR.1}@Youl',~lI).'/as-.-11I'lStolzK.Kniel0.I)111silrljflI..Crocf:r~I).Clul.ch.'HiIIia":I?flyttsr>l~If.I)!nf.oilI).I'llIelIl'0)eCt"il>>1'l>>~.'tf:nrn~y,III}H'.1I:o>>ii(3inCPS(16)L.=1)reflerill?CI'all.I<i;l~l-.:Ruf>en%l>>'IR.TedescoG.LainasJ.Knightiff:I:Ilfff,Sf'lfWuyII.PeltierC.GrimesC.AndersonT.SuK.HerringA.HafizAPR25)978

dad~~p,sAbc'"vA<<>>*++DocketNos:50-35850-38750-352/35350-36750-373/37450-38850-410(50-322UNITEDSTATESNUCLEARREGULATORYCOMMISSIONWASHINGTON,D.C.20555APR25j978APPLICANT;MEMBERSOFMARKIIOWNER'SGROUP

SUBJECT:

TRIPTOLIVERMORE,STANFORDRESEARCHINSTITUTEANDGENERALELECTRICTODISCUSSMARKIIPOOLDYNAMICLOADS~kkddThepurposeofthistripwastodiscussseveralanalyticalandexperimentalprogramsrelated'oMarkIIpooldynamicloads.Acopyoftheattendees,agendaandslidesdistributedatthemeetingareattached.Inthemorningofthefirstday(Wednesday)wemetwithLivermorepersonneltodiscusstheLivermore/DORprogramtostudyfluidstructureinteractions(FSI)intheMark-IMonticelloSafetyReliefValve(SRV)tests.aWednesdayafternoonwemetwithpersonnelatStanfordResearchInstitutetodiscusstheir1/13scaleMarkIIpoolswelltests.ThursdaywemetwithrepresentativesoftheMarkIIowner'sgroupandGeneralElectrictodiscussthestatusofseveraltasksintheirMarkIIpooldynamicloadprogram.Asummaryof-thetopicsdiscussedinthemeetingsisprovidedbelow.~SumarLivermoreMeetinEdMcCauleyofLivermoresummarizedtheresultsoftheFY77LivermoreFSIprogram.TheirstudyofSRV-FSIeffectsshowedatrendofdecreasingloadswithincreasingwallflexibility.Themajorlimitationsoftheirstudyincludedtheplanesectionmodelingofthecontainmentandthemodelingofthesource.Theseassumptionsresultinanover-estimateofthedependenceofSRVloadsonwallflexibility.FuturestudiesbyLivermoreareaimedatevaluatingtheimportanceoftheseparameters.

h APR35]g7gStandfordResearchInstituteMeetinThepurposeofthismeetingwastodiscussthepreliminaryresultsofthe'MarkII1/13scalesingleventtests.TheseSRItestsconsistedofairchargingtests..Shakedowntestswereconductedtodeterminetheaffectofwatervaporinscaleairtestsonpoolswellphenomenon.ThepreliminaryresultsfortheSRItestsshoweddifferencesfromsimilartestsconductedatMIT.Thepurposeofthemeetingwastoidentifyreasonsforthedifferences.AdditionalSRItestingwas.discussedtoresolvedifferencesinresults.Hhi'leattheSRIfacilitywetouredthepooldynamicteststands.MenotedthatSRIisconductingEPRIfundedteststoinvestigatesteamchuggingphenomena.Testsarebeingconductedatthreedifferentscalesincludingsingleandmultiventtests.Thistestprogramisastudyofthefundamentalphenomenaofchugging.ThisprogramisnotapartoftheMarkIIownergroupsupportingprogram.MarkIIOwner'sGrouMeetinThetopicsdiscussedinthismeetingarelistedintheattachedmeetingagenda.Asummaryofdiscussionfollows:1.MonticelloSRV-MarkIIFluidStructureInteractionStudiesOr.H.TangofGeneralElectricdiscussedtheresultsofstudiesatGEtodeterminetheeffectofcontainmentwallflexibilityonthemeasuredSRVloadsintheMonticellotests.GEperformedcalculationssimilartothoseperformedbyLivermore.TheirplanestraincalculationsutilizedsimilarassumptionsofcontainmentrigidityandloadsourcetothoseperformedbyLivermore.UndertheseconditionstheyobservedthesametrendofreducingloadwithincreasingwallflexibilityasobservedintheLivermorestudies.However,theGEstudieswereextendedtoincludeaxisymmetriccalculations,3Dmodelingofatorussegmentandamultiplepulsesource.Resultsofthesestudiesshowthatwallflexibilityamplifiestheloads.ThisconclusioncontradictstheLivermore2Dstudy.Inadditiontheyconductedanalytical-experimentalcomparisonsusingtheirmodelandtheMonticellodata.TheuseofthemorerealisticassumptionsintheanalyticalmodelsubstantiatedtheMarkIIowner'sclaimthattheMonticellobenchmarkisvalid.TheMonticelloFSIstudyisnowconsideredcompletebytheMarkIIowner'sgroup.DocumentationwillbeprovidedtotheNRCbytheendofMay1978, InourMarchmeetingwiththeMarkIIowner'sgroupwediscussedthedesirabilityofformulatingaconservativechuggingimpulseloadtoresolve4TFSIquestions.Dr.HealzerofGeneralElectricdiscussedtheirplanforthistask.TheyshouldcompletethisstudybyearlyJune1978.AstatusreportwillbeprovidedatthenextMarkIIowner'smeeting.ThismeetingistentativelyscheduledformidMay1978,InadditionwerequestedthatDr.Healzerprovideus,withinthenextfew'eeks,anoutlineoftheobjectiveofthistask.3.SRVPoolTemeratureLimitsT.SuofNRCprovidedanNRCstatusreportontheissueofSRVpooltemperaturelimits.Hestatedthatbasedonourcurrentreviewofthesmallscaleteststhereisinadequatesupportingdatatojustifythecurrentpooltemperaturelimitsforrams-headreliefvalvedevices.AsaresultofourreviewwearepreparinganNRCpositionrequiringtheuseofquenchertypedevicesinMarkIIplantssincethesedeviceshavehigherpooltemperaturelimits.4.DFFRLeadPlantSRVLoadsT.SuofNRCprovidedastatusreportontheNRCreviewoftheMarkIIramsheadmodel.Hehighlightedseveraldeficienciesinthecurrentmodel.Wealsodiscussedtheuseoftheramsheadmodelforthoseleadplantswhichhavecommittedtoaswitchfromaramsheadtoaquencherdevice.H.BrinkmanrepresentingtheMarkIIowner'sgroupstatedthattheirplansaretousethecurrentramsheadmodeltopredictSRVloadsforplantswithquencherdevices.Testprogramsarebeingdevelopedtoshowthattheuseoftheseramsheadloadsforquencherdevicesisaconservativeapproach.CurrentplanscallforcompletionoftheconfirmatorytestspriortooperationofthefirstMarkIIplant.5,PSTFImactLoadsG.MaiseofBNLoutlinedtheresultsoftheNRCevaluationofMarkIIPoolDynamic-impactloads.ThisstudyconcludedthatthecurrentDFFRimpactloadspecificationisinadequateinthat

4APR2g]97Btheimpulseloadspecificationdoesnotincludeaconservativepulseduration.Inadditionnoconsiderationhasbeengiventotheaffectoftargetgeometryontheimpactload.TheMarkIIowner'sstatedthattheyhadnothadsufficienttimetoreviewthebasisforourconclusionsnortheimpactofthispotentialloadmodificationonequipmentinspecificMarkIIplants.TheirpreliminaryreviewoftheBNLstudyhasnotuncoveredanydeficiencesintheBNLstudy.However,conservatismsinthecurrentimpactloadspecificationcouldbebalancedagainsttheserecentlyidentifiednonconservatisms.AtthenextMarkIIowner'smeetinginmid-MaytheMarkIIownerswillprovideustheirevaluationoftheBNLstudyandareviewoftheimpactofthisloadmodificationonspecificMarkIIplants.g.(<,6I.Peltier,ProjectManagerLightHaterReactorsBranchNo.1DivisionofProjectManagement

Enclosures:

l.Agenda2.AttendanceList3.ViewgraphMaterialcc:SeeFollowingPages

LongIslandLightingCompanyATTN:Mr.AndrewW.WoffordVicePresident175EastOldCountryRoadHicksville,NewYork11801EdwardM.Barrett,Esq.GeneralCounselLongIslandLightingCompany250OldCountryRoadMineola,NewYork11501EdwardJ.Walsh.Esq.GeneralAttorneyLongIslandLightingCompany250OldCountryRoadMineola,NewYork11501Mr.ThomasBurkeProjectManager,ShorehamNuclearPowerStationP.0.Box618WadingRiver,NewYork11792Director,TechnicalDevelopmentProgramsStateofNewYorkEnergyOfficeAgencyBuilding2EmpireStatePlazqAlbany,NewYork12223HawardL.BlauBlauandCohn,P.C.380NorthBroadwayjericho,NewYork11753IrvingLike,Esq.Reilly,LikeandSchnieder200WestMainStreetBabylon,NewYork11702MUBTechnicalAssociates366CaliforniaAvenueSuite6PaloAlto,California94306<PR25><78

PhiladelphiElectricCompanyATTN:Mr.EdwardG.Bauer,Jr.VicePresidentandGeneralCounsel2301MarketStreetPhiladelphia,Pensylvania19101TroyB,Conner,Jr.Ewq.Conner,Moore&Corber1747PennsylvaniaAvenue,N.W.Washington,D.C.20006W.WilliamAnderson,Esq.DeputyAttorneyGeneralRoom512,MainCapitolBuildingHarrisburg,Pennsylvania17120FrankR.Clokey,Esq.SpecialAssistantAttorneyGeneralRoom218,TowneHouseApartmentsP.0.Box2063Harrisburg,Pensylvania17105HonorableLawrenceCoughlinHouseofRepresentativesCongressoftheUnitedStatesWashington,D.C.20515RogerBEReynolds,Jr.,Esq.324SwedeStreetNorristown,Pennsylvania19401WillardC.Hetzel,Esq.312mainStreetEastGreenville,Pennsylvania18041LawrenceSager,Esq.Sager&SagerAssociates45HighStreetPottstown,Pennsylvania19464JosephA.SmythAssistantCountySolicitorCountyofMontgomeryCourthouseNorristown,Pennsylvania19404APR251978EugeneJ.BradleyPhiladelphiaElectricCompanyAssociateGeneralCounsel2301MarketStreetPhiladelphia,Pennsylvania19101

APR251978TheCincinnatiGas8ElectricCompanyATTN:Mr,EarlA,BorgmannVicePresident-EngineeringP.0.Box960Cincinnati,Ohio45201Mr.WilliamJ.MoranGeneralCounselTheCincinnatiGas8ElectricCo.P.0.Box960Cincinnati,Ohio45201Mr.WilliamG.Porter,Jr.Porter,Stanley,Arthur,&Platt37WestBroadStreetColumbus,Ohio43215Mr.RobertKillen,ChairmanoftheBoard8ChiefExecutiveOfficerTheDaytonPower&LightCompanyP.0.Box1034Dayton,Ohio45401Mr.J.RobertNewlin,CounselTheDaytonPower&LightCompanyP.0.Box1034Dayton,Ohio45401Mr.StephenSchumacherMianiValleyPowerProjectP.0.Box252Dayton,Ohio45401Ms.AugustaPrice601StanleyAvenueCincinnati,Ohio45226DavidB.Fankhauser,PhD3569NineMileRoadCincinnati,Ohio45230ThomasA.Luebbers,Esq.CincinnatiCitySolicitorRoom214-CityHallCincinnati,Ohio45202Troy8~Conner,Esq.Conner,Moore&Cober1747PennsylvaniaAve.N.WEWashington,D.C,20006Mr.JamesD.FlynnManager,Licensing8EnvironmentalAffairsTheCincinnatiGas&ElectricCompanyP,0.Box960Cincinnati,Ohio45201Mr.J.P.FenstermakerSeniorVicePresident-,OperationsColumbus8SouthernOhioElectricCo.215NorthFrontStreetColumbus,Ohio43215

NorthernIndianaPublicServiceCompanyATTN:Mr.H.P.Lyle,VicePresidentElectricProduction5Engineering5265HolmanAve.Hammond,Indiana46325MeredithHemphill,Jr.Esq.AssistantGeneralCounselBethlehemSteelCorporationMartinTowerBethlehem,Pennsylvania18016WilliamH.Eichhorn,Esq.Eichhorn,Morrow8Eichhorn5243HohmanAvenueHammond,Indiana46320EdwardW.Osann,Jr.,Esq.Wolfe,Hubbard,Leydid,Voit&Osann,Ltd.Suite4600OneIBMPlazaChicago,Illinois60611MarvinN.Berm,Esq~SpecialAssistantAttorneyGeneral134NorthLaSalleStreetSuite2222Chicago,Illinois60602RobertJ.Vollen,Esq.109NorthOearbornStreetChicago,Illinois60602APRg5F8

CommonwealthEdisonCompanyA&iN;Mr.ByronLee,Jr,VicePresidentP,0.Box767Chicago,Illinois60690RichardE.Powell,Esq.Isham,Lincoln&BealeOneFirstNationalPlaza2400"Chicago,Il1inois60670APR2g)g78

PennsylvaniaPowerandLightCompanyATTN:Mr.NormanW.CurtisVicePresident-EngineeringandConstruction2NorthNinthStreetAllentown,Pennsylvania18101Mr.EarleM.MeadProjectManagerPennsylvaniaPower4ILightCompany2NorthNinthStreetAllentown,Pennsylvania18101GeraldCharnoff,Esq.Shaw,Pittman,Potts,Trowbridge5Madden1800MStreet,N.W.Washington,D.C.20036Mr.WilliamE.BarberichLicensingEngineerPennsylvaniaPowerIILightCompany2NorthNinthStreetAllentown,Pennsylvania18101Mr.RobertJ.Shovlin,ProjectManagerSusquehannaPennsylvaniaPower5LightCompany2NorthNinthStreetAllentown,Pennsylvania18101Hubert,Barnes,Esq.PennsylvaniaPower8LightCompany901HamiltonStreetAllentown,Pennsylvania18101EdwardM.Nagel,EsquireGeneralCounselandSecretaryPennsylvaniaPower8LightCompany2NorthNinthStreetAllentown,Pennsylvania,18101APR851978

WashingtonPublicPowerSupplySystemATTN:Nr.Kneil0.StrandHanagingOirector3000GeorgeWashingtonWayRichlandWashington99352JosephB.Knotts,Jr.,Esq.Oebevoise5Liberman700ShorehamBuilding806FifteenthStreet,N.W.Washington,O.C.20005RichardQ.Quigley,Esq.WashingtonPublicPowerSupplySystemP.0.Box968Richland,Washington99352APRBg)~78

NiagraMohawkPowerCorporationATTN:Mr.JeraldK.RhodeVicePresidentEngineering300ErieBoulavardWestSyracuseNewYork13202.EugeneBEThomas,Jr.LeBoeuf,Lamb,Leiby8MacRae1757NStreet,N,W.Washington,D,C.20036AnthonyZ.Roisman,Esq.Roisman,Kessler&Cashdan102515thStreet,N.W.Washington,D.C.20036Mr.RichardGoldsmithSyracuseUniversityCollegeofLawE.I.WhiteHallCampusSyracuse,NewYork13210T.K.DeBoer,DirectorTechnologicalDevelopmentProgramsNewYorkStateEnergyOfficeSwanStreetBuildingCore1-2ndFloorEmpireStatePlazaAlbany,NewYork12223~~R~~197s 0

MarkII-NRCMeeting'roposedAgendaAPR2g)978Livermore-Aril51978I.LivermoreFluidStructureInteractionProgramA.SRVStudyB.ChuggingStudyII.SubmergedStructureDragLoadsA.NRCQuestionsB.DFFRLoadsforLeadPlantsSanJose-Aril6,197SI.MonticelloSRY-MarkIIFluidStructureInteractionStudies'I.PoolTemperatureLimitsNRCReviewStatusIII.DFFRLeadPlantSRYLoadsA.PhilosophyB.RamsheadModelIV.4TFSI-MarkIIProgramtoDeviseChuggingImpulseLoadV.PSTF.ImpactLoadA.BNLStudyB.PlantTargetCharacteristics

LawrenceLivermoreLab4-5-78MeetingAttendanceNRCK.S.HerringAbdelHafizT.M.SuChrisGrimesC.AndessonSSLC.N.KrishnawamyNutech-MKIOwnersN.W.EdwardsLLLG.S.HolmanS.C.LuR.W.MartinW.E.MasonFrankJ.TokarzR.E.KoppeMITAinA.SoninPeterHuberBechtelMoeMichailPa.PowersLihtComanHowardW.HollandBNLSRICheeTungC.EconomusR.ScanlanC.BienkowskiGeorgeMaiseGeorgeAbrahamsenEPRIJohnCareyEG5GH.T.TangV.M.HealterR.J.MuzzyL.H.SrauenholzJ.E.RogersR.F.McClellandL.J.SobonC.Y.Liaw

AttendanceListNRC/MarkIIOwnersGroupApril6,1978HolidayInn-SanJose,CAAPRg8)g)8GeneralElectricA.R.SmithH.T.TangJ.R.MartinL.H.FrauenholzR.J.MuzzyL.J.SobonR.E~McClellandNRCC.AndersonI.A.PeltierT.M.SuC.I.GrimesA.HafizMITP.W.HuberA.A.SoninBNLC.TungC.EconomosGeorgeMaiseR.H.ScanianR.BienkowskiCGEH.C.BrinkmannPa.PowerELihtComanHowardW.HollandNSCR.E.KoppeBechtelJackWeyandtH.M.SchoenhoffD.M.O'onnorC.N.KrishnaSwamyLLLE.W.McCauleyG.S.Holman

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