Analyses of severe accidents in GFR demonstrator ALLEGRO with MELCOR 2.1

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F16%3AN0000021" target="_blank" >RIV/46356088:_____/16:N0000021 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1115/ICONE24-60396" target="_blank" >http://dx.doi.org/10.1115/ICONE24-60396</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/ICONE24-60396" target="_blank" >10.1115/ICONE24-60396</a>

Result language
angličtina
Original language name
Analyses of severe accidents in GFR demonstrator ALLEGRO with MELCOR 2.1
Original language description
Several pressurized and depressurized protected scenarios were investigated; four of them are presented in this paper. It was observed that even long-lasting station blackout (SBO) without further failures of the passive safety systems does not lead to a severe accident as long as there is enough water in the decay heat removal (DHR) system. Loss of coolant (LOCA) transients with DHR system in the forced-convection mode can lead to peak cladding temperatures causing limited core damage in the early phase of the accidents, but without further development into core meltdown. On the other hand, LOCA combined with SBO leads to excessive core melting in orders of minutes, which represents a weak point of ALLEGRO 2009 concept. Recommendations were formulated for the further development of the ALLEGRO concept.
Czech name
—
Czech description
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Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
International Conference on Nuclear Engineering, Proceedings, ICONE Volume 2, 2016, Article number V002T06A018
ISBN
978-079185002-2
ISSN
—
e-ISSN
—
Number of pages
9
Pages from-to
1-9
Publisher name
American Society of Mechanical Engineers (ASME)
Place of publication
New York, USA
Event location
Charlotte, North Carolina, USA
Event date
Jun 26, 2016
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000387190600030

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