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1、AnnalsofNuclearEnergy37(2010)572–581ContentslistsavailableatScienceDirectAnnalsofNuclearEnergyjournalhomepage:www.elsevier.com/locate/anuceneThermalhydraulicanalysisofSyrianMNSRresearchreactorusingRELAP5/Mod3.2codeH.Omar*,N.Ghazi,F.Alhabit,A.HainounNuclea
2、rEngineeringDepartment,AtomicEnergyCommission,P.O.Box6091,Damascus,SyriaarticleinfoabstractArticlehistory:ThispaperpresentsthedevelopmentandvalidationofaMNSR-RELAP5model.MNSRisa30kW,light-Received7September2009watermoderatedandcooled,beryllium-reflected,ta
3、nkinpooltyperesearchreactor.ARELAP5modelReceivedinrevisedform10December2009wassetuptosimulatetheentireMNSRsystem.ThemodelrepresentsallreactorcomponentsofprimaryAccepted27December2009andsecondaryloopswiththecorrespondingneutronicandthermalhydrauliccharacte
4、ristics.UndertheAvailableonline29January2010MNSRoperationconditionsofnaturalcirculation,normaloperation,stepreactivitytransientsandreac-tivityinsertionaccidentsaresimulated.TheRELAP5modelwasvalidatedbycomparingmeasuredandcalculateddatafortheSyrianMNSRreac
5、tor.Comparisonsincludeparametersofnormaloperationatconstantpower,stepreactivitytransientandthecontrolrodwithdrawaltransient.Goodagreementwasobtainedforcorecoolantinletandoutlettemperaturesforoperationatconstantpower,andfordevelopmentofpowerlevelafterreact
6、ivityinser-tion,coolantinlettemperatureandcoolantoutlettemperatureforthecontrolrodwithdrawaltransient.Asaresultofthisstudy,thedevelopedRELAP5modelforSyrianMNSRisshowntobeanappropriatemodelandcouldbeusedforotherfuturethermalhydraulicstudies.Ó2009ElsevierLt
7、d.Allrightsreserved.1.Introductiondataandtheyarealwaysundercontinuousenhancementandassessment(Hamidoucheetal.,2008;D0AuriaandGalassi,1998;Computationalmodelsusingadeterministicapproacharenor-Glaeser,1995;TeschendorffandAustregesilo,1996;Ransommallyusedfor
8、thesafetyanalysisofnuclearreactors.Thesemodelsetal.,1987;Analytis,1996;BarreandBernard,1990).(andcodes)havetobeapplicableovertheexpectedrangeofoper-TheReactorExcursionandLeakAnalysisProgram(RELAP)isanationalparamete
