The large volume vacuum systems are used in many industrial operations and research laboratories. Accidents in these systems should have a relevant economical and safety impact. A loss of vacuum accident (LOVA) due to a failure of the main vacuum vessel can result in a fast pressurization of the vessel and consequent mobilization dispersion of hazardous internal material through the braches. It is clear that the influence of flow fields, consequence of accidents like LOVA, on dust resuspension is a key safety issue. In order to develop this analysis an experimental facility is been developed: STARDUST. This last facility has been used to improve the knowledge about LOVA to replicate a condition more similar to appropriate operative condition like to kamaks. By the experimental data the boundary conditions have been extrapolated to give the proper input for the 2D thermofluid-dynamics numerical simulations, developed by the commercial CFD numerical code. The benchmark of numerical simulation results with the experimental ones has been used to validate and tune the 2D thermofluid-dynamics numerical model that has been developed by the authors to replicate the LOVA conditions inside STARDUST. In present work, the facility, materials, numerical model, and relevant results will be presented. © 2014 A. Malizia et al.

Malizia, A., Lupelli, I., Richetta, M., Gelfusa, M., Bellecci, C., Gaudio, P. (2014). Safety analysis in large volume vacuum systems like tokamak: Experiments and numerical simulation to analyze vacuum ruptures consequences. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2014 [10.1155/2014/201831].

Safety analysis in large volume vacuum systems like tokamak: Experiments and numerical simulation to analyze vacuum ruptures consequences

MALIZIA, ANDREA;RICHETTA, MARIA;GELFUSA, MICHELA;BELLECCI, CARLO;GAUDIO, PASQUALINO
2014

Abstract

The large volume vacuum systems are used in many industrial operations and research laboratories. Accidents in these systems should have a relevant economical and safety impact. A loss of vacuum accident (LOVA) due to a failure of the main vacuum vessel can result in a fast pressurization of the vessel and consequent mobilization dispersion of hazardous internal material through the braches. It is clear that the influence of flow fields, consequence of accidents like LOVA, on dust resuspension is a key safety issue. In order to develop this analysis an experimental facility is been developed: STARDUST. This last facility has been used to improve the knowledge about LOVA to replicate a condition more similar to appropriate operative condition like to kamaks. By the experimental data the boundary conditions have been extrapolated to give the proper input for the 2D thermofluid-dynamics numerical simulations, developed by the commercial CFD numerical code. The benchmark of numerical simulation results with the experimental ones has been used to validate and tune the 2D thermofluid-dynamics numerical model that has been developed by the authors to replicate the LOVA conditions inside STARDUST. In present work, the facility, materials, numerical model, and relevant results will be presented. © 2014 A. Malizia et al.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - Fisica Sperimentale
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Settore ING-IND/12 - Misure Meccaniche e Termiche
English
Con Impact Factor ISI
Accidents; Computational fluid dynamics; Dispersions; Numerical models; Research laboratories; Vacuum, Experimental facilities; Industrial operations; Numerical code; Safety analysis; Safety impact; Thermo-fluid-dynamics; Vacuum system; Vacuum vessel, Computer simulation
Malizia, A., Lupelli, I., Richetta, M., Gelfusa, M., Bellecci, C., Gaudio, P. (2014). Safety analysis in large volume vacuum systems like tokamak: Experiments and numerical simulation to analyze vacuum ruptures consequences. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2014 [10.1155/2014/201831].
Malizia, A; Lupelli, I; Richetta, M; Gelfusa, M; Bellecci, C; Gaudio, P
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/117865
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