福岛第一核电站事故全解(PPT).pdf

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1、TheFukushimaDaiichiIncident–Dr.MatthiasBraun-06April2011-p.1TheFukushimaDaiichiIncident1.PlantDesign2.AccidentProgression3.Radiologicalreleases4.Spentfuelpools5.SourcesofInformationMatthiasBraunPEPA4-G,AREVA–NPGmbHMatthias.Braun@AREVA.comTheFukushimaDaiichiIncident–Dr.M

2、atthiasBraun-06April2011-p.2TheFukushimaDaiichiIncident1.PlantDesignFukushimaDaiichi(PlantI)UnitI-GEMarkIBWR(439MW),Operatingsince1971UnitII-IV-GEMarkIBWR(760MW),Operatingsince1974TheFukushimaDaiichiIncident–Dr.MatthiasBraun-06April2011-p.3TheFukushimaDaiichiIncident1

3、.PlantDesignBuildingstructureConcreteBuildingContainmentSteel-framedServiceFloorPear-shapedDry-WellTorus-shapedWet-Wellen.wikipedia.org/wiki/Browns_Ferry_Nuclear_Power_Plantnucleartourist.comTheFukushimaDaiichiIncident–Dr.MatthiasBraun-06April2011-p.4TheFukushimaDai

4、ichiIncident1.PlantDesignServiceFloorTheFukushimaDaiichiIncident–Dr.MatthiasBraun-06April2011-p.5TheFukushimaDaiichiIncident1.PlantDesignLiftingtheContainmentclosureheadTheFukushimaDaiichiIncident–Dr.MatthiasBraun-06April2011-p.6TheFukushimaDaiichiIncident1.PlantDesignR

5、eactorServiceFloor(SteelConstruction)SpendFuelPoolConcreteReactorBuilding(secondaryContainment)FreshSteamlineMainFeedwaterReactorCoreReactorPressureVesselContainment(Drywell)Containment(WetWell)/CondensationChamberTheFukushimaDaiichiIncident–Dr.MatthiasBraun-06April2011

6、-p.7TheFukushimaDaiichiIncident2.Accidentprogression11.3.201114:46-EarthquakeMagnitude9PowergridinnorthernJapanfailsReactorsitselfaremainlyundamagedSCRAMPowergenerationduetoFissionofUraniumstopsHeatgenerationduetoradioactiveDecayofFissionProductsAfterScram~6%Afte

7、r1Day~1%After5Days~0.5%TheFukushimaDaiichiIncident–Dr.MatthiasBraun-06April2011-p.8TheFukushimaDaiichiIncident2.AccidentprogressionContainmentIsolationClosingofallnon-safetyrelatedPenetrationsofthecontainmentCutsoffMachinehallIfcontainmentisolationsucceeds,alargeear

8、lyreleaseoffissionproductsishighlyunlikelyDieselgeneratorsstartEmergencyCorecoolingsystemsaresuppliedPlantisi