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Vapor explosions: prediction of a critical liquid-corium velocity in vapor destabilization mechanism of corium melt in the fuel-coolant interactions-FCI

Autor
Arias, F.J.
Tipus d'activitat
Article en revista
Revista
Annals of nuclear energy
Data de publicació
2010-09-23
Volum
37
Número
9
Pàgina inicial
1236
Pàgina final
1240
DOI
https://doi.org/10.1016/j.anucene.2010.03.018 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S030645491000126X?np=y Obrir en finestra nova
Resum
In this paper, utilizing a simplified physical model an analytical expression for the prediction of most probable corium fragment size as function of relative velocity corium–coolant is derived. Combining this equation with the available experimental data an important consequence for the nuclear safety result: the existence of a critical velocity corium–coolant which maximizes the destabilization of film boiling when an external pressure wave is supplied.
Paraules clau
Corium, Debris, Fuel–coolant interaction FCI, Nuclear safety, Vapor explosions

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