Izvestiya vuzov. Yadernaya Energetika

The peer-reviewed scientific and technology journal. ISSN: 0204-3327

Model analysis of spent fuel pit severe accident for SUNPP (Unit 1) under blackout and heat removal failure using MELCOR 1.8.5

5/11/2013 2013 - #03 Global safety, reliability and diagnostics of nuclear power installations

Balashevsky А.S. Shevielov D.V. Vlasenko N.I. Kozlov V.Ya.

DOI: https://doi.org/10.26583/npe.2013.3.02

UDC: 621.311.25

The calculation model of the spent fuel pit for SUNPP (Unit 1) using MELCOR 1.8.5 computer code has been created. The loss of heat removal from spent fuel pit initiating event has been analyzed. Time limits of fuel damage, hydrogen generated mass and meltconcrete interaction having been estimated.