Analyses of severe accidents in GFR demonstrator ALLEGRO with MELCOR 2.1

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Analyses of severe accidents in GFR demonstrator ALLEGRO with MELCOR 2.1

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Analyses of severe accidents in GFR demonstrator ALLEGRO with MELCOR 2.1

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

JF - Jaderná energetika

OECD FORD obor

—

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

International Conference on Nuclear Engineering, Proceedings, ICONE Volume 2, 2016, Article number V002T06A018

ISBN

978-079185002-2

ISSN

—

e-ISSN

—

Počet stran výsledku

9

Strana od-do

1-9

Název nakladatele

American Society of Mechanical Engineers (ASME)

Místo vydání

New York, USA

Místo konání akce

Charlotte, North Carolina, USA

Datum konání akce

26. 6. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000387190600030