Materialsselectionfor andirradiationcapabilitiesofMYRRHA - - PowerPoint PPT Presentation

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Materialsselectionfor andirradiationcapabilitiesofMYRRHA

JorisVandenBosch,LANL H.Ait Abderrahim,SCK●CEN P.Baeten,SCK●CEN V.Sobolev,SCK●CEN S.Gavrilov,SCK●CEN

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Outline

• MYRRHAdesign(brief)
• MYRRHAmaterialsselection
• MaterialchallengestowardsMYRRHA
• MYRRHAmaterialirradiationcapabilities
• Summary

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Sub1criticalreactor Accelerator

Fast neutron source

MYRRHA concept

MYRRHAaninnovativeconcept

Spallationsource

Highreliability Windowless Lead1Bismuth coolant

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

MYRRHAcomponents: Accelerator

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Innervessel Cover Corestructure Innervessel Cover Corestructure Spallationloop Innervessel Cover Corestructure Spallationloop Heatexchangers Innervessel Cover Corestructure Spallationloop Heatexchangers Pumps Innervessel Cover Corestructure Spallationloop Heatexchangers Pumps Diaphragm Innervessel Cover Corestructure Spallationloop Heatexchangers Pumps Diaphragm Fuel storage Innervessel Cover Corestructure Spallationloop Heatexchangers Pumps Diaphragm Fuel storage Fuel manipulators Innervessel Cover Corestructure Spallationloop Heatexchangers Pumps Diaphragm Fuel storage Fuel manipulators Guard vessel

Layout

5

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

• Tasks
• Produce1017 neutrons/stofeedsubcriticalcore@keff=0.95
• Acceptmegawattprotonbeam

—

600MeV,2.513mA⇒ ⇒ ⇒ ⇒ ≈111.2MWheat

—

300mmpenetrationdepth

—

PbBieutecticastargetmaterial

• Fitintocentralholeincore

—

compacttarget

—

windowless(beamdensity)

—

Offaxisgeometry

• MatchMYRRHApurposeasexperimentalirradiationmachine

—

flexibleremotehandling

• Survive(lifetime)

MYRRHAcomponents: Spallationtarget

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Spallationtargetloopconfiguration

• LBEflow&cooling
• Forcedconvection(1020l/s)
• Tmax(LBE surface)=450°C;T<100°C
• Heatexchangertomainvesselcoolant
• Vacuumrequirements
• Pressureabovetarget<103104 mbar
• Confinementofvolatilespallationproducts
• LBEconditioning
• Corrosioninhibition,Filtering
• Servicebyremotehandling
• Entirespallationunitremovablefrommainvesselaftercoreunloading
• Separatesubunitwithallactiveelements

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Spallationtarget

• Windowlesstarget
• spaceconsiderations
• beamdensity
• Formationoftargetfreesurface
• ConfluenceofVerticalcoaxialflow
• Forceddetachment
• Recirculationzone:incheck
• Feedbacknecessary(slow)
• Protonbeamdistribution

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

criticalparametersoftheMYRRHAcomponents

2.5 8 550 450 200 T91 MAXTHAL/316 Target Structures Pump PurificationSystem na 0.1 550 370 200 316L Refuelling Equipment 170 0.9 1.3 550 400 200 T91 Coresupportplate ~120(primary) ~150(second) 0.64 0.1 550 370 200 316L Diaphragm 60 0.6.104 0.1 550 370 200 316L ReactorVessel na 0.06 9 300 200 Tobedefined MAXTHAL (Ti3SiC2)[3] CirculationPumps 114 0.032 1.1 550 370 200 T91 HeatExchanger 110 1.54[2] 0.2 550 350 200 316 CoreBarrel 0.2 550 350 200 T91 DummyAssemblies 29 29 1.6 2.3 550 550 450 450 200 T91* FuelAssemblies Clad Structures Max.Mech. stress (MPa) Max.Neutron damage (dpa/yr) Max.LBE velocity (m/s) Max.Temp. lasting1week (C) Max.Temp. unlimited time (C) Min.Temp. unlimited time (C)

[1]

Material Components

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

ApproachtoMYRRHAfuelelementqualification(0)

Preparationofthedatabaseofthematerialsproperties

Fuelrodandsubassemblypredesign

Materialsscreeningandselection Searchmaterialsprovidersandthematerialsprocurement Searchmanufacturersforcomponents Fabrication(components,rods,SA) Prequalificationofcomponents Qualification… LicensingfortheproductionofSA

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

ApproachtoMYRRHAfuelelementqualification(I)

1515Ti T91

Preparationofthedatabaseofthematerialsproperties Fuelrodpredesign

Pu0.35U0.65O2x

Fuelelement(subassembly)conceptualdesign

Fuelpellets Cladding Wrapper SAstructure elements Rodstructure elements 1515Ti Inconnel YSZ T91,… EM10 T91 EM10 T91

Materialsscreeningandselection

HT9

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

ApproachtoMYRRHAfuelelementqualification(II)

1515Ti T91 Pu0.35U0.65O2x Fuelpellets Cladding Wrapper SAstructure elements Rodstructure elements 1515Ti Inconnel YSZ T91,… EM10 91 EM10 91

Searchmaterialsprovidersandthematerialsprocurement Searchmanufacturersforcomponents

Productionof thecladding samples

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

ApproachtoMYRRHAfuelelementqualification(III)

Fabrication(components,rods,SA)

Productionof thecladding samples Claddingpre qualification Production

• fpellets

Productionof rodelements Production

• fwrapper

samples Productionof SAstructure elements Productionof rodsegments Fuelrod qualification Productionof mockupSA Wrapperpre qualification SAoutofpile qualification

Prequalificationofcomponents Qualification… Licencing fortheproductionofSAfortheMYRRHAcore…

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

“Ways” for clad qualification

• 15115Tishorttrack
• Visibilityofthistrackshouldbeexplored
• Toobtaindatabaseof1515Tiproperties(CEA?)

—

Literatureverylimited

• Todefinelistofdamagingeffectsatcladding/coolantboundary
• Todefineexperimentalmatrix
• 15115Tilongtrack
• Todefinelistofall possibledamagingeffects
• Todefineexperimentalmatrix
• T91longtrack
• Fabrication

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Schemeofexperimentsforfuelpinre1qualification Corrosiontests stagnant flow Mechanicaltests Pressurizedtubes Fuelpinstests

Out1of1pile In1pile

Corrosiontests stagnant flow Mechanicaltests Pressurizedtubes Fuelpinstests ASTIR&LEXURII MYRMAT

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Preliminarytimeschedule

• ???

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

• keff≈0.95
• 183hexagonalmacro1cells
• Target1blockhole:

3FAremoved

• 72positionsforfuelassemblies

(8IPSpositionsincluded)

• ≈30%MOXfuel
• 27positionsforfuelassiesordummyassies

(filledwithLBE)(yellow)

• 84additionalcellsforcore

reconfiguration

MYRRHAcomponents:SubcriticalCore

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

MYRRHA:aFlexibleExperimentalFacility

MinorActinides testassemblies Experimentalrigs:

• dedicatedcontents
• dedicatedirradiation

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

MaterialIrradiationinMYRRHA

• IPSLocationinthecore

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

IPSMaterialTestingTypicalLayout

!"

#" $%"" &' '( ) )*

• +

$ )

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

• &,#-. /
• +-&"01"2 "03"

)

• &1,-. /41%". 5
• +-&%03

*

• *'

6*7'

• &
• &1"-. /
• + -&10#

!,

Irradiations ofmaterialsin XT1ADS

!,

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

MYRRHACoreconfigurationwithRadioisotopesproductiondevice Tirr =9EFPDs forMo 7EFPDs forIr

Radioisotpes production

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Radioisotopeproductionfor targets:Irnat capsule(left);235U1plates(right)

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

99MoProduction

!3 8+.9 ) ):3

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Summary

• Designnotfinal(CDTwithinEuropeanFrameworkProgram7)
• Firstchoicematerialselectionisfinal;
• Strongeffortneededtowardslicensing;
• Claddingismostcriticalcomponentatthispoint;
• MechanicalpropertiesunderirradiationwhileincontactwithLBEarecritical.
• MYRRHAistobe:
• Aflexibleneutronirradiation testingfacilityassuccessoroftheSCKCENMTR

BR2 (100MW)

• AnattractivefastspectrumtestingfacilityinEurope forGen.IV andFusion
• AfullstepADSdemofacility andP&Ttestingfacility
• Atechnologicalprototype astestbenchforLFRGen.IV
• Anattractivetoolforeducationandtraining ofyoungscientistsandengineers

• OperatedbyLosAlamosNationalSecurity,LLCforNNSA

UNCLASSIFIED

Onepictureisbetterthanathousandwords,wearein2017~2020

ThankYouforYourAttention Questions? Suggestions?