THE METHOD OF CORIUM COOLING IN A CORE CATCHER OF A LIGHT-WATER NUCLEAR REACTOR

During the development of a severe accident at nuclearpower plantwith core melting, corium is formed. One main barriers preventing outflow into environment melt localization device or trap. The trap must accept and prevent parameters from exceeding critical values, ensuring its retention in controlled volume cooling. For this reason, traps are subject to serious requirements regarding cooling methods ensure effective containment nuclear reactor. In presented article, experimental studies interaction between water, which was supplied surface for cooling, were analyzed. As result work, number significant problems associated with low efficiency method identified, possible ways eliminate them considered. A solution proposed optimizing trap, as well scope research on possibility implementing practice analyzing effectiveness using VCG-135 test-bench Lava-B facility.