Author/Authors :
Sa. Kondo، نويسنده , , K. Konishi، نويسنده , , M. Isozaki، نويسنده , , S. Imahori، نويسنده , , A. Furutani، نويسنده , , D.J. Brear، نويسنده ,
Abstract :
Molten fuel-coolant interactions in a jet contact mode was studied with respect to the safety of liquid-metal-cooled fast breeder reactors (LMFBRs). From a series of molten Woodʹs metal (melting point 79 °C) jet-water interaction experiments, several distinct modes of interaction behaviors were observed for various combinations of initial temperature conditions of the two fluids. A semi-empirical model for a minimum film boiling temperature criterion was developed and used to reasonably explain the different interaction modes. It was concluded that energetic jet-water interactions are only possible under relatively narrow initial thermal conditions. Preliminary extrapolation of the present results to a UO2-sodium system suggests that mild interactions and coolable debris formation should be most likely in LMFBRs.
