THAI Experiment Analyses for Fukushima II project

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000115" target="_blank" >RIV/26722445:_____/19:N0000115 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

THAI Experiment Analyses for Fukushima II project

Popis výsledku v původním jazyce

In order to develop an appropriate knowledge to support the SUJB (State Office of Nuclear Safety), the CVŘ (Research Centre Řež), in collaboration with SURO (National Radiation Protection Institute) is developing a methodology to simulate nuclear power plants under accidental conditions. A particular effort is focused in the severe accident phenomenology where hydrogen deflagration carries a critical issue for the containment integrity, such as Fukushima Daiichi accident. For this purpose, THAI (Thermal-hydraulics, hydrogen, aerosol and iodine) experimental campaigns are chosen due to the several tests involved in different conditions. THAI containment test facility is used to open questions concerning the behavior of hydrogen, iodine and aerosols in the containment of water-cooled reactors during severe accidents. The Fukushima Daiichi Accident demonstrates that the hydrogen deflagration could lead to a significant containment damage. For this reason, a particular attention is given to the hydrogen deflagration scenario. All simulations are prepared and modelled in MELCOR 2.1. The results obtained showed a strong influence related with some factors as: the nodalization pattern, Control Volume (CVH) number, Flow Paths (FL) number, time step and so on. In order to assess the THAI model with the THAI final reports, it has been performed a sensitivity analysis focused with those parameters.

Název v anglickém jazyce

THAI Experiment Analyses for Fukushima II project

Popis výsledku anglicky

In order to develop an appropriate knowledge to support the SUJB (State Office of Nuclear Safety), the CVŘ (Research Centre Řež), in collaboration with SURO (National Radiation Protection Institute) is developing a methodology to simulate nuclear power plants under accidental conditions. A particular effort is focused in the severe accident phenomenology where hydrogen deflagration carries a critical issue for the containment integrity, such as Fukushima Daiichi accident. For this purpose, THAI (Thermal-hydraulics, hydrogen, aerosol and iodine) experimental campaigns are chosen due to the several tests involved in different conditions. THAI containment test facility is used to open questions concerning the behavior of hydrogen, iodine and aerosols in the containment of water-cooled reactors during severe accidents. The Fukushima Daiichi Accident demonstrates that the hydrogen deflagration could lead to a significant containment damage. For this reason, a particular attention is given to the hydrogen deflagration scenario. All simulations are prepared and modelled in MELCOR 2.1. The results obtained showed a strong influence related with some factors as: the nodalization pattern, Control Volume (CVH) number, Flow Paths (FL) number, time step and so on. In order to assess the THAI model with the THAI final reports, it has been performed a sensitivity analysis focused with those parameters.

Druh

V_souhrn - Souhrnná výzkumná zpráva

CEP obor

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OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

<a href="/cs/project/VI20172020076" target="_blank" >VI20172020076: Zpřesnění predikce radiačních následků těžkých havárií jaderných elektráren s cílem identifikace jejich rizik</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Počet stran výsledku

39

Místo vydání

Řež

Název nakladatele resp. objednatele

Centrum výzkumu Řež, s.r.o.

Verze

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