A recognized safety issue for future fusion reactors fueled with deuterium and tritium is the generation of sizeable quantities of dust. Activated dust mobilization during a Loss of Vacuum Accidents (LOVA) is one of the safety concerns for the International Thermonuclear Experimental Reactor (ITER). Intense thermal loads in fusion devices occur during plasma disruptions, Edge Localized Modes (ELM) and Vertical Displacement Events (VDE). They will result in macroscopic erosion of the plasma facing materials and consequent accumulation of activated dust into the ITER Vacuum Vessel (VV). In order to perform thermo-fluid dynamic analysis a small facility, Small Tank for Aerosol Removal and Dust (STARDUST), was set up at the University of Rome "Tor Vergata", in collaboration with ENEA Frascati laboratories. This facility simulates low pressurization rates (100Pa/s, 300 Pa/s and 500 Pa/s) due to LOVA events in ITER due to a small air inlet at different internal pressure conditions and wall temperatures. The authors will present the experimental results in order to analyze the influence of different pressurization rates in the variation of thermo-fluid dynamic conditions that are strictly connected to dust mobilization.

Benedetti, M., Gaudio, P., Lupelli, I., Malizia, A., Porfiri, M., Richetta, M. (2011). Scaled experiment for Loss of Vacuum Accidents in nuclear fusion devices: Experimental methodology for fluid-dynamics analysis in STARDUST facility. In Recent Researches in Mechanics - Proc. of the 2nd Int. Conf. on FLUIDSHEAT'11, TAM'11,Proc. of the 4th WSEAS Int. Conf. UPT'11, CUHT'11 (pp.142-147). Corfu Island.

Scaled experiment for Loss of Vacuum Accidents in nuclear fusion devices: Experimental methodology for fluid-dynamics analysis in STARDUST facility

GAUDIO, PASQUALINO;LUPELLI, IVAN;MALIZIA, ANDREA;RICHETTA, MARIA
2011-01-01

Abstract

A recognized safety issue for future fusion reactors fueled with deuterium and tritium is the generation of sizeable quantities of dust. Activated dust mobilization during a Loss of Vacuum Accidents (LOVA) is one of the safety concerns for the International Thermonuclear Experimental Reactor (ITER). Intense thermal loads in fusion devices occur during plasma disruptions, Edge Localized Modes (ELM) and Vertical Displacement Events (VDE). They will result in macroscopic erosion of the plasma facing materials and consequent accumulation of activated dust into the ITER Vacuum Vessel (VV). In order to perform thermo-fluid dynamic analysis a small facility, Small Tank for Aerosol Removal and Dust (STARDUST), was set up at the University of Rome "Tor Vergata", in collaboration with ENEA Frascati laboratories. This facility simulates low pressurization rates (100Pa/s, 300 Pa/s and 500 Pa/s) due to LOVA events in ITER due to a small air inlet at different internal pressure conditions and wall temperatures. The authors will present the experimental results in order to analyze the influence of different pressurization rates in the variation of thermo-fluid dynamic conditions that are strictly connected to dust mobilization.
2nd International Conference on Fluid Mechanics and Heat and Mass Transfer 2011, FLUIDSHEAT'11, 2nd International Conference on Theoretical and Applied Mechanics 2011, TAM'11, 4th WSEAS International Conference on UPT'11, CUHT'11
Rilevanza internazionale
contributo
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Settore FIS/01 - Fisica Sperimentale
Settore ING-IND/12 - Misure Meccaniche e Termiche
English
Aerosol removal; Air inlet; Different pressurization rates; Dust mobilization; Edgelocalized modes; Experimental methodology; Fusion devices; Internal Pressure; International thermonuclear experimental reactor; ITER; ITER vacuum vessels; LOVA; Nuclear fusion devices; Plasma disruption; Plasma facing materials; Pressurization rate; Pressurization rates; Safety concerns; Safety issues; Small tanks; STARDUST; Thermo-fluid dynamics; University of Rome; Vertical displacement events; Wall temperatures, Accidents; Deuterium; Dust; Dynamic analysis; Dynamics; Flow fields; Fluid dynamics; Fluid mechanics; Fluids; Mass transfer; Pressurization; Tokamak devices; Tritium; Vacuum; Vacuum applications; Velocity, Experimental reactors
http://www.wseas.us/e-library/conferences/2011/Corfu/CUTAFLUP/CUTAFLUP-24.pdf
Intervento a convegno
Benedetti, M., Gaudio, P., Lupelli, I., Malizia, A., Porfiri, M., Richetta, M. (2011). Scaled experiment for Loss of Vacuum Accidents in nuclear fusion devices: Experimental methodology for fluid-dynamics analysis in STARDUST facility. In Recent Researches in Mechanics - Proc. of the 2nd Int. Conf. on FLUIDSHEAT'11, TAM'11,Proc. of the 4th WSEAS Int. Conf. UPT'11, CUHT'11 (pp.142-147). Corfu Island.
Benedetti, M; Gaudio, P; Lupelli, I; Malizia, A; Porfiri, M; Richetta, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/117911
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