0000000000342354

AUTHOR

G. Di Gironimo

showing 8 related works from this author

Eurofusion-DEMO Divertor - Cassette Design and Integration

2020

International audience; The Eurofusion-DEMO design will complete the Pre Conceptual Design phase (PCD) with a PCD Gate, named G1, scheduled to take place in Q4 2020 that will focus on assessing the feasibility of the plant and its main components prior to entering into the Conceptual Design phase. In the paper first an overview is given of the Eurofusion-DEMO Divertor Assembly including design and interface description, systems and functional requirements, load specification, system classification, manufacturing procedures and cost estimate. Then critical issues are discussed and potential design solutions are proposed, e.g.:- Neutron material damage limits of the different (structural) mat…

DEMO; Divertor; CAD DesignMaterials sciencePassive coolingNuclear engineeringPort (circuit theory)01 natural sciences7. Clean energy010305 fluids & plasmas[SPI]Engineering Sciences [physics]DivertorConceptual design0103 physical sciencesDEMO fusion reactorGeneral Materials ScienceCAD Design010306 general physicsDEMOnuclear fusionSettore ING-IND/19 - Impianti NucleariCivil and Structural Engineeringelectromagnetic computationToroidNuclear heatingSeparatrixMechanical EngineeringDivertornuclear fusion plasma control electromagnetic computationNuclear Energy and EngineeringTUNGSTEN/EUROFER COATING SYSTEM CONCEPTUAL DESIGN COOLING CIRCUIT PROGRESS HCLLplasma controlHigh heat
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Progress in the initial design activities for the European DEMO divertor: Subproject "Cassette"

2017

Abstract Since 2014 preconceptual design activities for European DEMO divertor have been conducted as an integrated, interdisciplinary R&D effort in the framework of EUROfusion Consortium. Consisting of two subproject areas, ‘Cassette’ and ‘Target’, this divertor project has the objective to deliver a holistic preconceptual design concept together with the key technological solutions to materialize the design. In this paper, a brief overview on the recent results from the subproject ‘Cassette’ is presented. In this subproject, the overall cassette system is engineered based on the load analysis and specification. The preliminary studies covered multi-physical analyses of neutronic, thermal,…

EngineeringDesign activitiesNeutronic01 natural sciences7. Clean energy010305 fluids & plasmasThermal hydraulicsMaterials Science(all)0103 physical sciencesNeutronicsGeneral Materials Science010306 general physicsDEMOSettore ING-IND/19 - Impianti NucleariCivil and Structural EngineeringFocus (computing)business.industryDivertorMechanical EngineeringDEMO; Divertor cassette; Neutronics; Cooling; Thermohydraulics; Electromagnetic loadsDivertor cassetteThermohydraulicNuclear Energy and EngineeringDEMO Divertor cassette Neutronics Cooling Thermohydraulics Electromagnetic loadsSystems engineeringLoad analysisCooling; DEMO; Divertor cassette; Electromagnetic loads; Neutronics; Thermohydraulics; Civil and Structural Engineering; Nuclear Energy and Engineering; Materials Science (all); Mechanical EngineeringElectromagnetic loadsMaterials Science (all)businessThermohydraulicsCooling
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Recent progress in developing a feasible and integrated conceptual design of the WCLL BB in EUROfusion project

2019

The water-cooled lithium-lead breeding blanket is in the pre-conceptual design phase. It is a candidate option for European DEMO nuclear fusion reactor. This breeding blanket concept relies on the liquid lithium-lead as breeder-multiplier, pressurized water as coolant and EUROFER as structural material. Current design is based on DEMO 2017 specifications. Two separate water systems are in charge of cooling the first wall and the breeding zone: thermo-dynamic cycle is 295–328 °C at 15.5 MPa. The breeder enters and exits from the breeding zone at 330 °C. Cornerstones of the design are the single module segment approach and the water manifold between the breeding blanket box and the back suppo…

Breeding blanket; DEMO; EUROfusion; WCLLWCLL; breeding blanket; DEMO; EUROfusionComputer scienceNuclear engineeringBlanket01 natural sciences010305 fluids & plasmaslaw.inventionBreeder (animal)Conceptual designlaw0103 physical sciencesGeneral Materials ScienceEUROfusion010306 general physicsDEMOSettore ING-IND/19 - Impianti NucleariCivil and Structural EngineeringMechanical EngineeringPressurized water reactorFusion powerCoolantWCLLDesign phaseNuclear Energy and EngineeringMaterials Science (all)Breeding blanketBreeding blanket; DEMO; EUROfusion; WCLL; Civil and Structural Engineering; Nuclear Energy and Engineering; Materials Science (all); Mechanical Engineering
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Structural verification and manufacturing procedures of the cooling system, for DEMO divertor target (OVT)

2019

The paper presents the design activities and testing plan of a vertical target mock-up, developed within the pre-conceptual design phase for DEMO Work Package DIV-1 “Divertor Cassette Design and Integration” - EUROfusion Power Plant Physics & Technology (PPPT) program. Activities concerning the Divertor Outboard Vertical Target cooling mock-up are presented in term of CAD model, thermal-hydraulic numerical simulation, structural analysis, structural integrity verification and manufacturing procedure. Moreover, the mechanical dimensions of support systems for Plasma Facing Components (PFCs), manifold and diffuser have been analyzed in detail, in order to avoid structural fault during the tes…

Power stationComputer simulationDesign activitiesDivertor target cooling mock-upNuclear engineeringDivertorMechanical EngineeringDivertor cassetteCADFault (power engineering)01 natural sciences010305 fluids & plasmasNuclear Energy and Engineering0103 physical sciencesWater coolingDEMO; Divertor cassette; Divertor target cooling mock-up; Civil and Structural Engineering; Nuclear Energy and Engineering; Materials Science (all); Mechanical EngineeringGeneral Materials ScienceMaterials Science (all)Test plan010306 general physicsDEMO; Divertor cassette; Divertor target cooling mock-upDEMOSettore ING-IND/19 - Impianti NucleariCivil and Structural Engineering
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Advancements in DEMO WCLL breeding blanket design and integration

2017

Summary The water-cooled lithium–lead breeding blanket is a candidate option for the European Demonstration Power Plant (DEMO) nuclear fusion reactor. This breeding blanket concept relies on the liquid lithium–lead as breeder–multiplier, pressurized water as coolant, and EUROFER as structural material. The current design is based on DEMO 2015 specifications and represents the follow-up of the design developed in 2015. The single-module-segment approach is employed. This is constituted by a basic geometry repeated along the poloidal direction. The power is removed by means of radial–toroidal (i.e., horizontal) water cooling tubes in the breeding zone. The lithium–lead flows in a radial–poloi…

EngineeringPower stationRenewable Energy Sustainability and the Environmentbusiness.industryPressurized water reactorEnergy Engineering and Power TechnologyMechanical engineeringBlanketFusion power7. Clean energy01 natural sciencesEnergy storage010305 fluids & plasmasCoolantlaw.inventionFuel TechnologyNuclear Energy and Engineeringlaw0103 physical sciencesHeat transferWater cooling010306 general physicsbusinessInternational Journal of Energy Research
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WCLL breeding blanket design and integration for DEMO 2015: status and perspectives

2017

Abstract Water-cooled lithium-lead breeding blanket is considered a candidate option for European DEMO nuclear fusion reactor. ENEA and the linked third parties have proposed and are developing a multi-module blanket segment concept based on DEMO 2015 specifications. The layout of the module is based on horizontal (i.e. radial-toroidal) water-cooling tubes in the breeding zone, and on lithium lead flowing in radial-poloidal direction. This design choice is driven by the rationale to have a modular design, where a basic geometry is repeated along the poloidal direction. The modules are connected with a back supporting structure, designed to withstand thermal and mechanical loads due to norma…

Neutron transportComputer scienceBlanket7. Clean energy01 natural sciencesbreeding blanket; CFD; DEMO; WCLL010305 fluids & plasmaslaw.inventionlaw0103 physical sciencesDesign choiceGeneral Materials Science010306 general physicsWCLL Breeding blanket DEMOSettore ING-IND/19 - Impianti NucleariCivil and Structural EngineeringWCLL Breeding blanket DEMObusiness.industryMechanical EngineeringLead systemPressurized water reactorFusion powerModular designNuclear Energy and EngineeringSystems engineeringbusinessTransport systemFusion Engineering and Design
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Progress in EU Breeding Blanket design and integration

2018

Abstract In Europe (EU), in the frame of the EUROfusion consortium activities, four Breeding Blanket (BB) concepts are being developed with the aim of fulfilling the performances required by a near-term fusion power demonstration plant (DEMO) in terms of tritium self-sufficiency and electricity production. The four blanket options cover a wide range of technological possibilities, as water and helium are considered as possible coolants and solid ceramic breeder in combination with beryllium and PbLi as tritium breeder and neutron multipliers. The strategy for the BB selection and operation has to account for the challenging schedule of the EU DEMO, the ambitious operational requirements of …

Computer scienceIn-vessel and ex-vessel componentsBlanketContinuous design7. Clean energy01 natural sciencesBalance of plan010305 fluids & plasmas[SPI]Engineering Sciences [physics]Balance of plant; Breeding Blanket; In-vessel and ex-vessel components; Civil and Structural Engineering; Nuclear Energy and Engineering; Materials Science (all); Mechanical Engineering0103 physical sciencesGeneral Materials Science010306 general physicsSettore ING-IND/19 - Impianti NucleariCivil and Structural EngineeringBalance of plantBreeding BlanketMechanical EngineeringFrame (networking)Schedule (project management)tIn-vessel and ex-vessel componentsElectricity generationNuclear Energy and Engineering13. Climate actionInterfacingSystems engineeringDemonstration PlantIn-vessel and ex-vessel componentMaterials Science (all)Design evolution
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Advancements in DEMO WCLL breeding blanket design and integration

2018

The water-cooled lithium-lead breeding blanket is a candidate option for the European Demonstration Power Plant (DEMO) nuclear fusion reactor. This breeding blanket concept relies on the liquid lithium-lead as breeder-multiplier, pressurized water as coolant, and EUROFER as structural material. The current design is based on DEMO 2015 specifications and represents the follow-up of the design developed in 2015. The single-module-segment approach is employed. This is constituted by a basic geometry repeated along the poloidal direction. The power is removed by means of radial-toroidal (i.e., horizontal) water cooling tubes in the breeding zone. The lithium-lead flows in a radial-poloidal dire…

breeding blanketbreeding blanket DEMO WCLLbreeding blanket; DEMO; WCLLDEMOSettore ING-IND/19 - Impianti NucleariWCLL
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