Water boiling on the corium melt surface under VVER severe accident conditions

• Experimental results are presented on the interaction of corium melt with water supplied on its surface. The tests were conducted in the `Rasplav-2' experimental facility. Corium melt was generated by induction melting in the cold crucible. The following data were obtained: heat transfer at boiling water-melt surface interaction, gas and aerosol release, post-interaction solidified corium structure. The corium melt charge had the following composition, mass%: 60% UO2+x-16% ZRO2-15% Fe2O3-6% Cr2O3-3% Ni2O3. The melt surface temperature ranged within 1920-1970 K.

Keyword

Aerosols

Boiling liquids

Chromium compounds

Heat transfer

Iron oxides

Molten materials

Nickel compounds

Solidification

Uranium dioxide

Water

Zirconia

Corium

Core meltdown

Publication and Content Type

ref (subject category)

art (subject category)