ITER CTB盒冷屏的支撑结构与传热耦合分析-豆柴文库

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ITERCTB盒冷屏的支撑结构与传热耦合分析
Title:StructuralSupportandHeatTransferCouplingAnalysisofITERCTBColdShroud
Abstract:
ITER(InternationalThermonuclearExperimentalReactor)isagiantinternationalprojectaimedatdemonstratingthefeasibilityofnuclearfusionasacleanandsustainableenergysource.OneofthecriticalcomponentsinITERistheCentralTokamakBuilding(CTB)coldshroud,whichnotonlyactsasastructuralsupportforthereactorbutalsoplaysacrucialroleintransferringheatawayfromtheplasma.ThispaperpresentsacomprehensiveanalysisofthestructuralsupportandheattransfercouplinginITERCTBcoldshroud.
Introduction:
TheCTBcoldshroudinITERisacylindricalstructurecomposedofasupportframe,thermalshields,andcoolantchannels.Itsprimaryfunctionsaretoprovidemechanicalsupportforthereactorandtoprotectthesurroundingenvironmentfromtheextremelyhightemperaturesgeneratedduringthefusionreaction.Thesuccessfuloperationofthecoldshroudreliesonbothitsstructuralintegrityandtheefficienttransferofheat.
StructuralSupportAnalysis:
ThestructuralsupportanalysisoftheCTBcoldshroudinvolvesexaminingtheload-bearingcapacityofthesupportframetoensurethatitcanwithstandthemechanicalstressesanddeflectionsduringoperation.Finiteelementanalysisiscommonlyemployedtosimulatethecomplexbehaviorofthestructureundervariousloadingconditions.Materialproperties,suchasthermalexpansioncoefficientsandmechanicalstrengths,playacrucialroleindeterminingthestructuralresponse.Theanalysisalsoincludesstudyingtheeffectsofexternalfactorslikevibrationsandthermalcyclingonthesupportstructure.
HeatTransferAnalysis:
HeattransferanalysisoftheCTBcoldshroudfocusesonoptimizingthecoolingefficiencyandensuringthatthemaximumpermissibletemperaturesarenotexceeded.Theprimarysourcesofheatinthecoldshroudaretheplasmaanditsassociatedmagneticfields,whichcanreachtemperaturesofseveralmilliondegreesCelsius.Thethermalshieldsandcoolantchannelsaredesignedtoremovetheexcessiveheatandmaintainastableoperatingtemperature.Variouscoolingtechniques,suchasliquidmetalcoolingandgascooling,areconsideredtoenhanceheattrans