Title of article
ImportantviewpointsproposedforasafetyapproachofHTGRreactorsinEurope:FinalresultsoftheEC-fundedHTR-LprojectOriginalResearchArticle
Author/Authors
G.Brinkmann، نويسنده , , J.Pirson، نويسنده , , S.Ehster، نويسنده , , M.T.Dominguez، نويسنده , , L.Mansani، نويسنده , , I.Coe، نويسنده , , R.Moormann، نويسنده , , W.VanderMheen، نويسنده , , HTR-Lprojectpartners، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
12
From page
463
To page
474
Abstract
TheinherentsafetyfeaturesofmodularHighTemperatureReactors(HTRs)makeeventsleadingtoseverecoredamagehighlyunlikelyandconstitutethemaindifferentiatingaspectscomparedtoLWRs.Furthermore,whileaknownandstableregulatoryenvironmenthaslongbeenestablishedforLightWaterReactors(LWRs),differentwaysofthinkingmayhelptodevelopamoreappropriatelicensingprocessforHTR-basedpowerplants.
TheHTR-LprojectfundedbytheEuropeanCommissioninthe5thFrameworkProgrammewasdedicatedtothedefinitionofacommonandcoherentEuropeansafetyapproachandtheidentificationofthemainlicensingissuesforthelicensingframeworkofthemodularHTRs.Severaltopicsweredevelopedduringthecourseofthisproject.
DuetothecharacteristicsoftheHTRdesign,ithasbeennecessarytodefinespecificdefence-in-depthrequirementswhichhavethenbeenevaluatedforimplementationinthesafetyapproach.Safety-relatedfunctionsappropriatefortheHTRdesignhavealsohadtobeidentifiedandlisted.
Ononehand,thedifferentpossiblesolicitationsofthefuelparticlesconstitutedthestartingpointfortheidentificationoftheaccidentalconditions(bymeansoftheMasterLogicDiagramsmethodology);theseaccidentalconditionswereclassifiedandthemostappropriatemethodstoconsiderultralowprobabilitysevereaccidentswereexamined.
Ontheotherhand,theelementsconstitutingthesourcetermand,inparticular,therequirementsfortheconfinementofradioactiveproductsandtheconditionsrequiredtopreventtheneedfora“conventional”containmentstructurehavebeendiscussed.
Inthedefinitionofthesafetyapproach,attentionhasbeenpaidtotheneedtomaintainthepotentiallyinterestingeconomicperspectivesofHTRreactors.KeyissuestobeaddressedinthelicensingprocessoftheHTRshavealsobeenidentified.Aninnovativesystems,structuresandcomponentsclassificationmethodhasbeendevelopedandrulesthatwillgovernequipmentqualificationproposed.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
896007
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