Title of article
Heterogeneouscoresforimprovedsafetyperformance:Acasestudy:ThesupercriticalwaterfastreactorOriginalResearchArticle
Author/Authors
MagnusMori، نويسنده , , WernerMaschek، نويسنده , , AndreiRineiski، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
7
From page
1573
To page
1579
Abstract
Lightwaterreactor(LWR)technologyisnowadaysthemostsuccessfulcommercialapplicationoffissionreactorsfortheproductionofelectricity.However,inthenextfewyears,nuclearindustrywillhavetofacenewanddemandingchallenges:theneedforsustainableandcheapsourcesofenergy,theneedforpublicacceptance,theneedforevenhighersafetystandards,theneedtominimizethewasteproductionareonlyafewexamples.Itisfortheseveryreasonsthatafewnextgenerationnuclearreactorconceptswereselectedforextensiveresearchanddevelopment;supercriticalwaterreactorsareamongthem.Theuseofasupercriticalcoolantwouldallowforhigherthermalefficienciesandamorecompactplantdesign,sincesteamgenerators,orsteamseparatorsanddrierswouldnotbeneeded,henceachievingabettereconomy.Moreover,becauseofthehighheatcapacityofsupercriticalwater,relativelylesscoolantwouldbeneededtorefrigeratethereactor,thereforethefeasibilitytodesignawatercooledfastreactor:thesupercriticalwaterfastreactor(SCFR).Thissystempresentsuniquefeaturescombiningwell-knownfastandlightwaterreactorcharacteristicsinonedesign(e.g.atendencytoapositivevoidreactivitycoefficienttogetherwithlossofcoolantaccident–LOCAsasadesignbasisaccident).ThecoreisinfactloadedwithhighlyenrichedMOXfuel(averageplutoniumcontentof∼23%),andpresentsapeculiarandsignificantgeometricalandmaterialheterogeneity(useofradialandaxialblankets,solidmoderatorlayers,12differentenrichmentzones).Thesafetyanalysisofthisverycomplexcorelayout,togetherwiththeoptimizationofthevoidreactivityeffectthroughcoredesign,isthemainobjectiveofthiswork.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
896107
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