ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
HEAT TRANSFER DURING SEVERE CORE DISRUPTIVE ACCIDENTS IN LIGHT WATER REACTORS
要約
Research for light water reactors and liquid metal fast breeder reactors has identified factors that influence thermal behavior and, consequently, the progression of damage in a reactor core during a severe core damage accident. The factors that may have the greatest influence on core thermal behavior under these conditions are (a) chemical reactions among core materials and steam, (b) core material thermal properties, (c) debris bed characteristics, and (d) decay heat reduction due to fission product release. Uncertainties for these factors may be well characterized for an undamaged core, but are largely unknown for conditions accompanying severe core damage.