ML17037C540

Nine Mile Point Nuclear Station, Unit 1 - Letter Requesting Analyses and Other Relevant Data for Determining the Consequences of Densification and the Effects on Normal Operation, Anticipated Transients, and Accidents, Including Loss-Of-Coo

ML17037C540
Person / Time
Site:	Nine Mile Point
Issue date:	11/20/1972
From:	Giambusso A US Atomic Energy Commission (AEC)
To:	Brosnan T J Niagara Mohawk Power Corp
References
Download: ML17037C540 (4)

Text

DocketNo.50-220NiagaxaMohawkPowerCorporationATTN."Ur.ThomasJ.BrosnanVicePresidentandChiefEngineer300ErieBoulevardQestSyracuse,NewYor1sl3202RE:NINENILEPOINTUNIT1Gentlemen.'ITheCommission'sRegulatoryStaffhascomplectedareviewoffueldensificationan4itseffectonreactoroperationincludingtransientsandpostulated,loss-of-coolant.'ccidents.TheStaff'sinvestigationsandconclusionsarereportedin"TechnicalReportonDensificationofLightHaterReactorFuels"datedNovember14,1972,acopyofwhichisenclosedforyourinformationandguidance.Thisreportconcludesthatdensificationoffuelmayoccurandthattheresultingformationoffuelcolumngapashouldbeanticipatedinalllightwaterreactorfuels.Thereportalsoprovidestheessentialelementstobeincludedincalculationalmodelsusedtoaccountfortheeffectsoffueldensi-fication.TheRegulatoryStaffbelievesthatthefuelinthesub5ectfacilityissusceptibletodensification.Therefore,we'requestthatyouprovidethenecessaryanalysesandotherrelevantdatafordeterminingtheconsequencesofdensificationandtheeffectsonnormaloperation,anticipatedtransients,andaccidents,includingthepostulatedloss-of-coolantaccident,usingtheguidanceprovidedintheenclosedreport.Theseanalysesshouldbeprovidedforyourpresentandnextfuelloadings.Iftheanalysesindicatethatchangesindesignoroperatingconditionsarenecessarytomaintainrequiredmargins,youshouldsubmitproposedchangesandoperatinglimitationswiththeanalyses.

~I0Ik~j,~',Ie~<<4I'I"llIllt~>>/~<<>>1Ie*e~e>>=r>>.~I<<<<ete<<,ltII<<Il<<I'I.."yyy>>~~ee~rz.'S'w~I~X">>.~>>>>~<<>>~~y~~rSpI<<rI.~JIerr~<<<<<<

NiagaraMohawkPowerCorporation-2>>N0V~lD]S72InorderthattheRegulatoryStaffcanconductanexpeditiousandorderlyreviewofthesematters,werequestthatyousubmittheanalysesand.additionalinfoxmatio~within45daysfromthedateofthis1atter.Itisrequestedthatthisinformationbeprovidedwithonesignedoriginalandthirty-nineadditionalcopies.Sincerely',OglnnlSignedbyAPzln~4111'c0~~A.Giambusso,DeputyDirectorforReactorPxo)acts3)irectoxateofLicensing

Enclosure:

Technics1ReportonDensification(November14,1972)ccw/oenclosure'nrinE.Upton,EsquireLeBoeuf,Lamb,Leiby6lfacRae1821JeffersonPlace,N.M.Mashington~D.C.20036ccw/enclosure+OswegoCityLibrary120EastSecondStreetOswego,NewYork13126DistributionlocketFileXCRS(16)HQPDRDJSkovho1t,L:ORDLZiemann,L:ORB82CJDeBevec,L:ORB//2TJCarter,L:ORRMDiggs,L:ORB//2RPReadingLReadingBranchReadingJRBuchanan,ORNLTWLaughlin,DTIERO(3)Massar/Haflich,OGC-DKnuth,L:RS(2)RTedesco,L:CS(2)SDMacKay,L:ORB//lI.:ORB/$1OFFICESDMacKay:sjhll/88/72SURNAME>OATEpermAEO318(Rev.9-S3)AECM0240L:ORB82"aPCJDeBevec11/Zo/72Z,:OfPk.DLZiemann11/gpss72L:ORDJSkVyko.lt,3,1/,9/.72........,....L:RPAGiambussg.......,...11/ZA7,2.

0H9d