caa a22 4500 60615101X CHVBK 20210128100541.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10512-015-0023-5 doi (NATIONALLICENCE)springer-10.1007/s10512-015-0023-5 Reflood Investigation of Fuel Assemblies Based on Analysis of High-Temperature Integral Experiments [Elektronische Daten] [A. Vasil'ev, V. Romanovskii] A series of high-temperature experiments with an electrically heated fuel assembly in a steam-argon mixture followed by rapid cooling of the assembly with water or saturated steam is analyzed. The possibility of efficiently cooling a water-heated and water-moderated reactor core, heated to high temperature during a serious accident, by flooding the core with water from the bottom is studied. The oxidation of fuel-element cladding, hydrogen release upon heating and reflooding and heat-transfer processes, characteristic for a serious accident in a reactor and determining the effectiveness of flooding as a measure to control the accident, are analyzed in detail for a single experiment. The analysis is performed using the SOKRAT/V2 software code developed for modeling measures taken to control serious accidents in VVER. Analysis of experiments shows that reflooding the core, heated in a steam medium to temperature not exceeding 2100-2200 K, can be an effective measure to stop catastrophic development of a serious accident at NPP with VVER. Springer Science+Business Media New York, 2015 Vasil'ev A. Institute of Problems in the Safe Development of Nuclear Energy, Russian Academy of Sciences (IBRAE RAN), Moscow, Russia aut Romanovskii V. Institute of Problems in the Safe Development of Nuclear Energy, Russian Academy of Sciences (IBRAE RAN), Moscow, Russia aut Atomic Energy Springer US; http://www.springer-ny.com 119/1(2015-11-01), 15-24 1063-4258 119:1<15 2015 119 10512 https://doi.org/10.1007/s10512-015-0023-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10512-015-0023-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vasil'ev A. Institute of Problems in the Safe Development of Nuclear Energy, Russian Academy of Sciences (IBRAE RAN), Moscow, Russia aut NATIONALLICENCE 700 1- Romanovskii V. Institute of Problems in the Safe Development of Nuclear Energy, Russian Academy of Sciences (IBRAE RAN), Moscow, Russia aut NATIONALLICENCE 773 0- Atomic Energy Springer US; http://www.springer-ny.com 119/1(2015-11-01), 15-24 1063-4258 119:1<15 2015 119 10512