In nuclear fission systems, the primary contribution to the reactor power originates from the deposition of the kinetic energy of the fission fragments in the fissioning medium. Secondary, although not necessarily negligible, contributions to the reactor power arise from additional physical phenomena, including, but not limited to, the interactions of the radiation emitted in the radioactive decay of the fission products, as well as the prompt neutrons and photons produced in the fission event. The additional characteristics of the behaviour of the power due to these phenomena may be important to consider in design and safety studies, motivating their proper treatment in the numerical codes foreseen to be applied to such analyses. This work examines modelling and computational aspects of the effects of decay and photon heat in the context of space-time nuclear reactor dynamics calculations.

Models and methods for the representation of decay and photon heat in spatial kinetics calculations / Caron, Dominic; Dulla, Sandra; Ravetto, Piero; Savoldi, Laura; Zanino, Roberto. - (2016), pp. 2416-2425. (Intervento presentato al convegno PHYSOR 2016: Unifying Theory and Experiments in the 21st Century tenutosi a Sun Valley, ID nel May 1-5, 2016).

Models and methods for the representation of decay and photon heat in spatial kinetics calculations

CARON, DOMINIC;DULLA, SANDRA;RAVETTO, PIERO;SAVOLDI, LAURA;ZANINO, Roberto
2016

Abstract

In nuclear fission systems, the primary contribution to the reactor power originates from the deposition of the kinetic energy of the fission fragments in the fissioning medium. Secondary, although not necessarily negligible, contributions to the reactor power arise from additional physical phenomena, including, but not limited to, the interactions of the radiation emitted in the radioactive decay of the fission products, as well as the prompt neutrons and photons produced in the fission event. The additional characteristics of the behaviour of the power due to these phenomena may be important to consider in design and safety studies, motivating their proper treatment in the numerical codes foreseen to be applied to such analyses. This work examines modelling and computational aspects of the effects of decay and photon heat in the context of space-time nuclear reactor dynamics calculations.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2647493
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo