Study of an intrinsically safe infrastructure for training and research on nuclear technologies

Ripani, M.; Frambati, Stefano; Mansani, L.; Bruzzone, Maurizio; Reale, Marco; Monti, Stefano; Ciotti, Marco; Barbagallo, M.; Colonna, N.; Celentano, A.; Osipenko, M.; Ricco, G.; Saracco, P.; Viberti, Carlo Maria; Frasciello, Oscar; Boccaccio, P.; Esposito, J.; Lombardi, A.; Maggiore, M.; Piazza, Luigi; Prete, G.; Alba, R.; Calabretta, L.; Coséntino, L.; Zoppo, A. Del; Pietro, A. Di; Фігуера, П.; Finocchiaro, P.; Maiolino, C.; Santonocito, D.; Schillaci, M.; Chiesa, D.; Clemenza, M.; Previtali, E.; Sisti, M.; Kostyukov, A.; Cammi, Antonio; Bortot, Sara; Lorenzi, Stefano; Ricotti, Marco Enrico; Dulla, Sandra; Ravetto, Piero; Lomonaco, Guglielmo; Rebora, A.; Alloni, D.; Tigliole, A. Borio di; Cagnazzo, M.; Cremonesi, R.; Magrotti, Giovanni; Manera, S.; Panza, F.; Prata, Michele; Salvini, Andrea

doi:10.1051/epjconf/20137902004

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…GEN-IV plants) need to have a deep overview on the passive safety systems applied to research [13] and power [3] installations. As past nuclear accidents teach, the safety of nuclear systems is strongly related to their cooling systems, not only during normal operation, but for the whole time the nuclear fuel is contained in the plant.…”

Section: Introductionmentioning

confidence: 99%

Assessment of a 2D CFD model for a single phase natural circulation loop

Borreani¹,

Chersola²,

Lomonaco³

et al. 2017

IJHT

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The use of passive safety systems are more and more diffused in many technological fields. Natural circulation is probably one of the main phenomenon applied in this kind of systems: indeed, as known, by means of gravity and buoyancy forces, the fluids can circulate without any external power sources. In this paper, a preliminary analysis (also by comparisons between experimental tests and numerical simulations) of a natural circulation based loop (namely a natural circulation based facility installed at University of Genova) is presented. Starting from some experimental results, the data deriving from CFD loop simulations (both in steady and in unsteady conditions) are used for a first preliminary validation, mainly in order to have a computational tool reliable and able to computationally simulate motion inversions related phenomena. The physical inversions phenomena are very well reproduced also by the a simplified numerical 2D model of the loop, and the physical considerations related to the temperature and velocity fluctuations during the transient simulations, are in agreement with the well-known observations formulated by Welander on the basis of a simple point source analysis scheme.

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Section: Introductionmentioning

confidence: 99%

Assessment of a 2D CFD model for a single phase natural circulation loop

Borreani¹,

Chersola²,

Lomonaco³

et al. 2017

IJHT

Self Cite

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“…A spallation reaction induced by accelerated charged particles impinging in a target of a heavy element (e.g. lead) [30][31][32][33].…”

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confidence: 99%

Preliminary Assessment of the Transmutation Potentialities for an ITER-like FW Sector Loaded with MA

Scarfò

Caiffi

Chersola

et al. 2015

Glob. J. Energ. Technol. Res. Updat.

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The fusion-fission hybrid reactor is a promising technology that is likely to assume an increasingly important role in the global energy scene in the coming years. This kind of reactor can use both the nuclear fusion and fission processes to produce energy: neutrons from fusion reactions are used to sustain the fission of a sub-critical system. This method allows to have an intrinsically safe facility, with higher efficiency than a fusion reactor itself and with a harder neutron energy spectrum than a fission reactor, which could be suitable for nuclear waste transmutation. This paper, in particular, analyzes a type of hybrid reactor for the transmutation of Minor Actinides (MA). Nuclear waste, in the oxide form, is inserted as an element of the First Wall (FW) of an ITER-like fusion reactor. The aim is to demonstrate the feasibility of the transmutation of the MA characterized by higher long term radiotoxicity into shorter lived nuclides. The neutron transport in a detailed 3D geometrical model of the ITER reactor (B-lite) was performed by MCNP6 code, while the transmutation of the MA loaded in a single element of the FW was performed by SERPENT2 code. A pulsed ITER-like irradiation scenario was used. The analysis, which must be considered as a preliminary feasibility study, lead to very promising results, which could be further improved with a longer DEMO-like irradiation scenario and a larger number of MA loaded (“fission waste”) elements loaded in the FW.

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Contributing to the nuclear 3S's via a methodology aiming at enhancing the synergies between nuclear security and safety

Cipollaro

Lomonaco

2016

Progress in Nuclear Energy

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Study of an intrinsically safe infrastructure for training and research on nuclear technologies

Cited by 3 publications

References 11 publications

Assessment of a 2D CFD model for a single phase natural circulation loop

Assessment of a 2D CFD model for a single phase natural circulation loop

Preliminary Assessment of the Transmutation Potentialities for an ITER-like FW Sector Loaded with MA

Contributing to the nuclear 3S's via a methodology aiming at enhancing the synergies between nuclear security and safety

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