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{{#Wiki_filter:Mr.Haro1dR.DentonAEP:NRC:0849ATTACHMENT1EMERGENCYCORECOOLINGSYSTEMSSURVEILLANCEREUIREMENTSContinuedf.ByperformingaflowbalancetestduringshutdownfollowingcompletionofmodificationstotheECCSsubsystemthatalterthesubsystemflowcharacteristicsandverifyingthefollowingflowrates:BoronInjectionSystemSinlePum"Loop1BoronInjectionFlow117.5gpmLoop2BoronInjectionFlow117.5gpmLoop3BoronInjectionFlow117.5gpmLoop4BoronInjectionFlow117.5gpmSafetyInjectionSystemSinlePum""Loop1and4ColdLegFlow>300gpmLoop2and3ColdLegFlow>300gpmTheflowrateineachBoronInjection(BI)lineshouldbeadjustedtoprovide117.5gpm(nominal)flowintoeachloop.Undertheseconditionsthereiszerominiflowand80gpmsimulatedRCPsealinjectionlineflow.TheactualflowineachBIlinemaydeviatefromthenominalsolongasthedifferencebetweenthehighestandlowestflowis10gpmorlessandthetotalflowtothefourbranchlinesdoesnotexceed500gpm.Minimumflow(totalflow)requiredis345.8gpmtothethreemostco(servative(lowestflow)branchlines.TotalSIS(singlepump)flow,includingminiflow,'hallnotexceed650gpm.8310060329'31003PDRADOCK05000315PDR0.C.COOK-UNIT13/45-6aAmendmentNo.
{{#Wiki_filter:Mr.Haro1dR.DentonAEP:NRC:0849 ATTACHMENT 1EMERGENCY CORECOOLINGSYSTEMSSURVEILLANCE REUIREMENTS Continued f.Byperforming aflowbalancetestduringshutdownfollowing completion ofmodifications totheECCSsubsystem thatalterthesubsystem flowcharacteristics andverifying thefollowing flowrates:BoronInjection SystemSinlePum"Loop1BoronInjection Flow117.5gpmLoop2BoronInjection Flow117.5gpmLoop3BoronInjection Flow117.5gpmLoop4BoronInjection Flow117.5gpmSafetyInjection SystemSinlePum""Loop1and4ColdLegFlow>300gpmLoop2and3ColdLegFlow>300gpmTheflowrateineachBoronInjection (BI)lineshouldbeadjustedtoprovide117.5gpm(nominal) flowintoeachloop.Undertheseconditions thereiszerominiflowand80gpmsimulated RCPsealinjection lineflow.TheactualflowineachBIlinemaydeviatefromthenominalsolongasthedifference betweenthehighestandlowestflowis10gpmorlessandthetotalflowtothefourbranchlinesdoesnotexceed500gpm.Minimumflow(totalflow)requiredis345.8gpmtothethreemostco(servative (lowestflow)branchlines.TotalSIS(singlepump)flow,including miniflow,'hall notexceed650gpm.8310060329'31003 PDRADOCK05000315PDR0.C.COOK-UNIT13/45-6aAmendment No.
w/J Mr.HaroldR.tonATTACHMENT2BASISFORTECHNICALSPECIFICATIONCHANGEREQUESTThebasisforchangingtheTechnicalSpecificationisthatwehaveperformedasystemtestanddemonstratedthattheEastpumpwoulddeliver499gpmtotheReactorCoolantSystem(RCS)injectionpointswithanadditional80gpmsimulatedreactorcoolantpumpsealinjectionflow.Inaddition,wehaveperformedanevaluationofpumpoperationat580gpmtotalflowunderaccidentconditions,andthatevaluationhasshownthat.therewouldbeadequateNetPositiveSuctionHead(NPSH)forproperpumpoperationatthisflow.Onthisbasis,weconcludethatwiththesysteminitsminimumresistanceconfiguration,theECCSEastchargingpumpwillbeoperableinamannersoastoprecludetotalpumpflowfromexceedingrunoutconditions.Itshouldbenotedthat.inarrivingattheaboveconclusion,therunoutconditioniswiththepumpinthealignmentdelivering500gpmtotheRCSinjectionpointsandanadditional80gpmsimulatedreactorcoolantpumpsealinjectionflow.WithregardtotheWestpump,ourjustificationisthatbothpumpsareofsimilardesignandhavesimilarNPSHrequirements.IftheWestpumpwereallowedtodeliver500gpmtotheinjectionpoints,wewouldanticipatethattherewouldbenoproblemregardingrunoutbaseduponourEastpumptestresults,designsimilarity,andourNPSHevaluation.SincetheonlyitemofconcernwiththischangerequestismaximumECCSchargingpumpflow,andsincebothpumpsdelivertheminimumrequiredECCSflowwiththe'roperflowsplitbetweeninjectionpoints,wealsoconcludethatthisrequestedchangewillnotaffecttheminimumfloworflowsplitrequirementsasdefinedinthebasisforthisTechnicalSpecification.
w/J Mr.HaroldR.tonATTACHMENT 2BASISFORTECHNICAL SPECIFICATION CHANGEREQUESTThebasisforchangingtheTechnical Specification isthatwehaveperformed asystemtestanddemonstrated thattheEastpumpwoulddeliver499gpmtotheReactorCoolantSystem(RCS)injection pointswithanadditional 80gpmsimulated reactorcoolantpumpsealinjection flow.Inaddition, wehaveperformed anevaluation ofpumpoperation at580gpmtotalflowunderaccidentconditions, andthatevaluation hasshownthat.therewouldbeadequateNetPositiveSuctionHead(NPSH)forproperpumpoperation atthisflow.Onthisbasis,weconcludethatwiththesysteminitsminimumresistance configuration, theECCSEastchargingpumpwillbeoperableinamannersoastoprecludetotalpumpflowfromexceeding runoutconditions.
Itshouldbenotedthat.inarrivingattheaboveconclusion, therunoutcondition iswiththepumpinthealignment delivering 500gpmtotheRCSinjection pointsandanadditional 80gpmsimulated reactorcoolantpumpsealinjection flow.WithregardtotheWestpump,ourjustification isthatbothpumpsareofsimilardesignandhavesimilarNPSHrequirements.
IftheWestpumpwereallowedtodeliver500gpmtotheinjection points,wewouldanticipate thattherewouldbenoproblemregarding runoutbaseduponourEastpumptestresults,designsimilarity, andourNPSHevaluation.
SincetheonlyitemofconcernwiththischangerequestismaximumECCSchargingpumpflow,andsincebothpumpsdelivertheminimumrequiredECCSflowwiththe'roper flowsplitbetweeninjection points,wealsoconcludethatthisrequested changewillnotaffecttheminimumfloworflowsplitrequirements asdefinedinthebasisforthisTechnical Specification.
F$"I),')"'I~,),~>*Pd)I>I""f)V,'C.')f3)~F,I'),'L')5)>,0fI'F>,Q!))I),.>F)')JI4).J*)>IyI)())~,)>>))',.<<>>,g<f)I()fj.gQ),I'',>+'I)>).)A('3)F>I>f>)~>I'I"C),,I".)FYIIIII'>'.)MI).),"'"<<f.),)>>")'>.>')iI'II@'Iff*>'>IgI',')f)I>F'II,7fI'l1~>>i">)I)7>~9)r>I>)",~~F~'.)"'3">'I>)-))~hfC>..'*")}}
F$"I),')"'I~,),~>*Pd)I>I""f)V,'C.')f3)~F,I'),'L')5)>,0fI'F>,Q!))I),.>F)')JI4).J*)>IyI)())~,)>>))',.<<>>,g<f)I()fj.gQ),I'',>+'I)>).)A('3)F>I>f>)~>I'I"C),,I".)FYIIIII'>'.)MI).),"'"<<f.),)>>")'>.>')iI'II@'Iff*>'>IgI',')f)I>F'II,7fI'l1~>>i">)I)7>~9)r>I>)",~~F~'.)"'3">'I>)-))~hfC>..'*")}}

Revision as of 09:51, 29 June 2018

Proposed Tech Spec Re ECCS
ML17320A760
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 10/03/1983
From:
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17320A757 List:
References
AEP:NRC:0849, AEP:NRC:849, NUDOCS 8310060329
Download: ML17320A760 (4)
v • d • e


Text

Mr.Haro1dR.DentonAEP:NRC:0849 ATTACHMENT 1EMERGENCY CORECOOLINGSYSTEMSSURVEILLANCE REUIREMENTS Continued f.Byperforming aflowbalancetestduringshutdownfollowing completion ofmodifications totheECCSsubsystem thatalterthesubsystem flowcharacteristics andverifying thefollowing flowrates:BoronInjection SystemSinlePum"Loop1BoronInjection Flow117.5gpmLoop2BoronInjection Flow117.5gpmLoop3BoronInjection Flow117.5gpmLoop4BoronInjection Flow117.5gpmSafetyInjection SystemSinlePum""Loop1and4ColdLegFlow>300gpmLoop2and3ColdLegFlow>300gpmTheflowrateineachBoronInjection (BI)lineshouldbeadjustedtoprovide117.5gpm(nominal) flowintoeachloop.Undertheseconditions thereiszerominiflowand80gpmsimulated RCPsealinjection lineflow.TheactualflowineachBIlinemaydeviatefromthenominalsolongasthedifference betweenthehighestandlowestflowis10gpmorlessandthetotalflowtothefourbranchlinesdoesnotexceed500gpm.Minimumflow(totalflow)requiredis345.8gpmtothethreemostco(servative (lowestflow)branchlines.TotalSIS(singlepump)flow,including miniflow,'hall notexceed650gpm.8310060329'31003 PDRADOCK05000315PDR0.C.COOK-UNIT13/45-6aAmendment No.

w/J Mr.HaroldR.tonATTACHMENT 2BASISFORTECHNICAL SPECIFICATION CHANGEREQUESTThebasisforchangingtheTechnical Specification isthatwehaveperformed asystemtestanddemonstrated thattheEastpumpwoulddeliver499gpmtotheReactorCoolantSystem(RCS)injection pointswithanadditional 80gpmsimulated reactorcoolantpumpsealinjection flow.Inaddition, wehaveperformed anevaluation ofpumpoperation at580gpmtotalflowunderaccidentconditions, andthatevaluation hasshownthat.therewouldbeadequateNetPositiveSuctionHead(NPSH)forproperpumpoperation atthisflow.Onthisbasis,weconcludethatwiththesysteminitsminimumresistance configuration, theECCSEastchargingpumpwillbeoperableinamannersoastoprecludetotalpumpflowfromexceeding runoutconditions.

Itshouldbenotedthat.inarrivingattheaboveconclusion, therunoutcondition iswiththepumpinthealignment delivering 500gpmtotheRCSinjection pointsandanadditional 80gpmsimulated reactorcoolantpumpsealinjection flow.WithregardtotheWestpump,ourjustification isthatbothpumpsareofsimilardesignandhavesimilarNPSHrequirements.

IftheWestpumpwereallowedtodeliver500gpmtotheinjection points,wewouldanticipate thattherewouldbenoproblemregarding runoutbaseduponourEastpumptestresults,designsimilarity, andourNPSHevaluation.

SincetheonlyitemofconcernwiththischangerequestismaximumECCSchargingpumpflow,andsincebothpumpsdelivertheminimumrequiredECCSflowwiththe'roper flowsplitbetweeninjection points,wealsoconcludethatthisrequested changewillnotaffecttheminimumfloworflowsplitrequirements asdefinedinthebasisforthisTechnical Specification.

F$"I),')"'I~,),~>*Pd)I>I""f)V,'C.')f3)~F,I'),'L')5)>,0fI'F>,Q!))I),.>F)')JI4).J*)>IyI)())~,)>>))',.<<>>,g<f)I()fj.gQ),I,>+'I)>).)A('3)F>I>f>)~>I'I"C),,I".)FYIIIII'>'.)MI).),"'"<<f.),)>>")'>.>')iI'II@'Iff*>'>IgI',')f)I>F'II,7fI'l1~>>i">)I)7>~9)r>I>)",~~F~'.)"'3">'I>)-))~hfC>..'*")

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