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ATTACHMENTBRochesterGasandElectric(RG&E)desirestheflexibilitytoreconstitutefuelassembliesinordertoreducecoolantactivityandutilizetheremainingenergyinfuelassemblieswhichcontainsmallnumbersofdefectivefuelrods.Inthereconstitutionprocess,thefuelrodswhichareknowntobedefectivewillberemovedandreplacedwithdummyrods(Zircaloyorstainlesssteel),ornotreplacedleavingvacancies.Thisreconstitutionwillbeaccomplishedbyeitherremovingthetopnozzleorbyremovingthebottomnozzleafterinvertingtheassembly,inspectingandremovingthedefectiverods,replacingthefailed.rodswithdummyrodsorleavingdefectiverodlocationsempty,and.reattachingthenozzle.Ifafuelassemblyskeletonisdamaged.,serviceablefuelrodsanddummyrodsmaybetransferredtoanewskeleton.Fuelanddummyrodinsertionandnozzleremoval/reattachmentremainthesameasinthereconstitutionprocesspreviouslydiscussed.Thereconstitutedassemblywillmeettheoriginalassemblydesigncriteria.TheR.E.GinnaNuclearPowerPlantTechnicalSpecification5.3.1.adescribesthereactorcoreasconsistingofassembliescontaining179fuelrods.Inordertoallowfortheinsertionofreconstitutedassemblieswithdummyrodsand/orvacancies,thisstatementmustbemodifiedasproposedinAttachmentA.TheuseofreconstitutedfuelassembliesinareloadcoreisconsideredacceptablebecauseeachreloadthatcontainsreconstitutedassemblieswillbeevaluatedusingstandardmethodsasdescribedinReference1.Thereloadanalysiswillevaluatetheeffectoftheactualreconstitutiononcoreperformanceparameters,-peakingfactors,andcoreaveragelinearheatrateeffectstoensuretheexistingsafetycriteriaanddesignlimitsaremet.1naddition,reconstitutedassemblieswillmeettheoriginalassemblydesigncriteria.Inaccordancewith10CFR50.91,thesechangestotheTechnicalSpecificationshavebeenevaluatedtodetermineiftheoperationofthefacilityinaccordancewiththeproposed.Amendmentwould:1.involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.;or2.createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or3.involveasignificantreductioninthemarginofsafety.Thereconstitutedfuelassembliesmeetthesamedesignrequirementsand.satisfythesamedesigncriteriaastheoriginalfuelassemblies.Cyclespecificreloadevaluationswillapplyexistingsafetycriteriaanddesignlimits.Thereforeuseofreconstitutedfuelassembliesdoesnot.involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated. | ATTACHMENTBRochesterGasandElectric(RG&E)desirestheflexibilitytoreconstitutefuelassembliesinordertoreducecoolantactivityandutilizetheremainingenergyinfuelassemblieswhichcontainsmallnumbersofdefectivefuelrods.Inthereconstitutionprocess,thefuelrodswhichareknowntobedefectivewillberemovedandreplacedwithdummyrods(Zircaloyorstainlesssteel),ornotreplacedleavingvacancies.Thisreconstitutionwillbeaccomplishedbyeitherremovingthetopnozzleorbyremovingthebottomnozzleafterinvertingtheassembly,inspectingandremovingthedefectiverods,replacingthefailed.rodswithdummyrodsorleavingdefectiverodlocationsempty,and.reattachingthenozzle.Ifafuelassemblyskeletonisdamaged.,serviceablefuelrodsanddummyrodsmaybetransferredtoanewskeleton.Fuelanddummyrodinsertionandnozzleremoval/reattachmentremainthesameasinthereconstitutionprocesspreviouslydiscussed.Thereconstitutedassemblywillmeettheoriginalassemblydesigncriteria.TheR.E.GinnaNuclearPowerPlantTechnicalSpecification5.3.1.adescribesthereactorcoreasconsistingofassembliescontaining179fuelrods.Inordertoallowfortheinsertionofreconstitutedassemblieswithdummyrodsand/orvacancies,thisstatementmustbemodifiedasproposedinAttachmentA.TheuseofreconstitutedfuelassembliesinareloadcoreisconsideredacceptablebecauseeachreloadthatcontainsreconstitutedassemblieswillbeevaluatedusingstandardmethodsasdescribedinReference1.Thereloadanalysiswillevaluatetheeffectoftheactualreconstitutiononcoreperformanceparameters,-peakingfactors,andcoreaveragelinearheatrateeffectstoensuretheexistingsafetycriteriaanddesignlimitsaremet.1naddition,reconstitutedassemblieswillmeettheoriginalassemblydesigncriteria.Inaccordancewith10CFR50.91,thesechangestotheTechnicalSpecificationshavebeenevaluatedtodetermineiftheoperationofthefacilityinaccordancewiththeproposed.Amendmentwould:1.involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.;or2.createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or3.involveasignificantreductioninthemarginofsafety.Thereconstitutedfuelassembliesmeetthesamedesignrequirementsand.satisfythesamedesigncriteriaastheoriginalfuelassemblies.Cyclespecificreloadevaluationswillapplyexistingsafetycriteriaanddesignlimits.Thereforeuseofreconstitutedfuelassembliesdoesnot.involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated. | ||
Thereconstitutedfuelassembliessatisfytheoriginaldesigncriteriaandthereloadinwhichthefuelassembliesareusedisevaluatedtoensureexistingsafetycriteriaanddesignlimitsaremet.Therefore,thepossibilityofanewordifferentkindofaccidentisnotcreatedbytheuseofreconstituted.fuel.Therequiredcyclespecificreloadanalysiswillensureexistingsafetycriteriaanddesignlimitsaremet.Thiswillensurethereisnoreductioninamarginofsafety.Basedontheabovediscussions,RochesterGasandElectricsubmitsthattheissuesassociated.withthisAmendmentrequestareoutsidethecriteriaof10CFR50.91andanosignificanthazards.findingiswarranted.Reference1.WCAP-9273A"WestinghouseReloadSafetyEvaluationMethodology",July1985B-2 TABLE1DETAILEDTECHNICALSPECIFICATIONCHANGESLocationPage5.3-1DescritionofChane"179fuelrods"hasbeenreplaced.with"Thereactorcoreismadeupof121fuelassemblies'"witheachfuelassemblycontaining179fuelrodlocations.Fuelrodlocationsmay,atanytimeduringplantlife,haveanycombinationofthefol-lowingasdeterminedinaccordancewithcyclespecificreloadanalyses:ReasonforChaneAllowuseofreconstitutedfuels1.fuelrodsclad.withZircaloy-42.fillerrodsfabricatedfromZircaloy-4orstainlesssteel3.vacancies.Eachfuelassemblyalsocontains"...Replaced."are"with"all"WordingDeleted"Thereactorcoreismadeupof121fuelassemblies."'Usedintheaboveinsertion. | Thereconstitutedfuelassembliessatisfytheoriginaldesigncriteriaandthereloadinwhichthefuelassembliesareusedisevaluatedtoensureexistingsafetycriteriaanddesignlimitsaremet.Therefore,thepossibilityofanewordifferentkindofaccidentisnotcreatedbytheuseofreconstituted.fuel.Therequiredcyclespecificreloadanalysiswillensureexistingsafetycriteriaanddesignlimitsaremet.Thiswillensurethereisnoreductioninamarginofsafety.Basedontheabovediscussions,RochesterGasandElectricsubmitsthattheissuesassociated.withthisAmendmentrequestareoutsidethecriteriaof10CFR50.91andanosignificanthazards.findingiswarranted.Reference1.WCAP-9273A"WestinghouseReloadSafetyEvaluationMethodology",July1985B-2 TABLE1DETAILEDTECHNICALSPECIFICATIONCHANGESLocationPage5.3-1DescritionofChane"179fuelrods"hasbeenreplaced.with"Thereactorcoreismadeupof121fuelassemblies'"witheachfuelassemblycontaining179fuelrodlocations.Fuelrodlocationsmay,atanytimeduringplantlife,haveanycombinationofthefol-lowingasdeterminedinaccordancewithcyclespecificreloadanalyses:ReasonforChaneAllowuseofreconstitutedfuels1.fuelrodsclad.withZircaloy-42.fillerrodsfabricatedfromZircaloy-4orstainlesssteel3.vacancies.Eachfuelassemblyalsocontains"...Replaced."are"with"all"WordingDeleted"Thereactorcoreismadeupof121fuelassemblies."'Usedintheaboveinsertion.}} | ||
}} | |||
Revision as of 13:54, 18 May 2018
| ML17261A957 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 02/16/1990 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17261A955 | List: |
| References | |
| NUDOCS 9002260470 | |
| Download: ML17261A957 (6) | |
Text
ATTACEBE2FL'RevisetheTechnicalSpecificationpagesasfollows:Remove5.3-1Insert5.3-190022DOCK05002460470900216pDRADOCpDCP ReactorDesiFeaturesReactorCorea.Thereactorcorecontainsapproximately45metrictonsofuraniumintheformofuraniumdioxidepellets.ThepelletsareencapsulatedinZircaloy4tubingtoformfuelrods.Thereactorcoreismadeupof121fuelassemblies"'ith.eachfuelassemblycontaining179fuelrodlocations.Fuelrodlocationsmay,atanytimeduringplantlife,haveanycombinationofthefollowingasdetermined.inaccordancewithcyclespecificreloadanalyses:1.fuelrodsclad,withZircaloy-42.fillerrodsfabricatedfromZircaloy-4orstainlesssteel3.vacancies.Eachfuelassemblyalsocontains16guidetubesandoneinstrumentationthimbleallarrangedina14x14arraytoformafuelassembly.b.Theenrichmentofreloadfuelshallbenomorethan3.5weightpercentU-235forregionsdeliveredpriortoJanuary1,1984(Regions1-15),4.25weightpercentU-235forregionsdeliveredafterJanuary1,1984,ortheirequivalentsintermsofreactivity.c.Thereare29full-lengthassembliesinthereactorcore.EachRCCassemblycontains16144inchlengthsofsilver-indium-cadmiumalloycladwithstainlesssteelwhichactasneutronabsorberswheninsertedintothecore."'.3-1Proposed
ATTACHMENTBRochesterGasandElectric(RG&E)desirestheflexibilitytoreconstitutefuelassembliesinordertoreducecoolantactivityandutilizetheremainingenergyinfuelassemblieswhichcontainsmallnumbersofdefectivefuelrods.Inthereconstitutionprocess,thefuelrodswhichareknowntobedefectivewillberemovedandreplacedwithdummyrods(Zircaloyorstainlesssteel),ornotreplacedleavingvacancies.Thisreconstitutionwillbeaccomplishedbyeitherremovingthetopnozzleorbyremovingthebottomnozzleafterinvertingtheassembly,inspectingandremovingthedefectiverods,replacingthefailed.rodswithdummyrodsorleavingdefectiverodlocationsempty,and.reattachingthenozzle.Ifafuelassemblyskeletonisdamaged.,serviceablefuelrodsanddummyrodsmaybetransferredtoanewskeleton.Fuelanddummyrodinsertionandnozzleremoval/reattachmentremainthesameasinthereconstitutionprocesspreviouslydiscussed.Thereconstitutedassemblywillmeettheoriginalassemblydesigncriteria.TheR.E.GinnaNuclearPowerPlantTechnicalSpecification5.3.1.adescribesthereactorcoreasconsistingofassembliescontaining179fuelrods.Inordertoallowfortheinsertionofreconstitutedassemblieswithdummyrodsand/orvacancies,thisstatementmustbemodifiedasproposedinAttachmentA.TheuseofreconstitutedfuelassembliesinareloadcoreisconsideredacceptablebecauseeachreloadthatcontainsreconstitutedassemblieswillbeevaluatedusingstandardmethodsasdescribedinReference1.Thereloadanalysiswillevaluatetheeffectoftheactualreconstitutiononcoreperformanceparameters,-peakingfactors,andcoreaveragelinearheatrateeffectstoensuretheexistingsafetycriteriaanddesignlimitsaremet.1naddition,reconstitutedassemblieswillmeettheoriginalassemblydesigncriteria.Inaccordancewith10CFR50.91,thesechangestotheTechnicalSpecificationshavebeenevaluatedtodetermineiftheoperationofthefacilityinaccordancewiththeproposed.Amendmentwould:1.involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.;or2.createthepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyevaluated;or3.involveasignificantreductioninthemarginofsafety.Thereconstitutedfuelassembliesmeetthesamedesignrequirementsand.satisfythesamedesigncriteriaastheoriginalfuelassemblies.Cyclespecificreloadevaluationswillapplyexistingsafetycriteriaanddesignlimits.Thereforeuseofreconstitutedfuelassembliesdoesnot.involveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyevaluated.
Thereconstitutedfuelassembliessatisfytheoriginaldesigncriteriaandthereloadinwhichthefuelassembliesareusedisevaluatedtoensureexistingsafetycriteriaanddesignlimitsaremet.Therefore,thepossibilityofanewordifferentkindofaccidentisnotcreatedbytheuseofreconstituted.fuel.Therequiredcyclespecificreloadanalysiswillensureexistingsafetycriteriaanddesignlimitsaremet.Thiswillensurethereisnoreductioninamarginofsafety.Basedontheabovediscussions,RochesterGasandElectricsubmitsthattheissuesassociated.withthisAmendmentrequestareoutsidethecriteriaof10CFR50.91andanosignificanthazards.findingiswarranted.Reference1.WCAP-9273A"WestinghouseReloadSafetyEvaluationMethodology",July1985B-2 TABLE1DETAILEDTECHNICALSPECIFICATIONCHANGESLocationPage5.3-1DescritionofChane"179fuelrods"hasbeenreplaced.with"Thereactorcoreismadeupof121fuelassemblies'"witheachfuelassemblycontaining179fuelrodlocations.Fuelrodlocationsmay,atanytimeduringplantlife,haveanycombinationofthefol-lowingasdeterminedinaccordancewithcyclespecificreloadanalyses:ReasonforChaneAllowuseofreconstitutedfuels1.fuelrodsclad.withZircaloy-42.fillerrodsfabricatedfromZircaloy-4orstainlesssteel3.vacancies.Eachfuelassemblyalsocontains"...Replaced."are"with"all"WordingDeleted"Thereactorcoreismadeupof121fuelassemblies."'Usedintheaboveinsertion.