"Heat-resistant composite coating with a fluidized bed of the under-reactor melt trap of a light-water nuclear reactor "
DOI:
https://doi.org/10.31489/2021No3/65-70Keywords:
severe accident, under-reactor melt trap, corium, heat-resistant composite coating, LAVA-B facilityAbstract
The paper is devoted to the analysis of existing options of under-reactor melt traps, designs and disadvantages of these traps. A variation of its own under-reactor melt trap with a heat-resistant composite coating with a fluidized bed is proposed. The description of facility for experimental studies of the heat-resistant composite coating with the fluidized bed is presented. The results of a thermal calculation of the variation of the under-reactor trap with fluidized bed melt are presented. Thermal calculations showed that an increase in the average temperature of the melt is less intense in the model of an under-reactor trap with a fluidized bed, due to heat removal from the corium to the metal to complete the phase transition.
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