PROGRESS IN ALLEGRO THERMAL-HYDRAULICS RELATED RESEARCH AND DEVELOPMENT

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00374644" target="_blank" >RIV/68407700:21220/22:00374644 - 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

PROGRESS IN ALLEGRO THERMAL-HYDRAULICS RELATED RESEARCH AND DEVELOPMENT

Popis výsledku v původním jazyce

Recent progress in research and development concerning thermal-hydraulics and related topics focused on the ALLEGRO reactor is presented in this paper. ALLEGRO is a concept of a demonstration unit of the Gas-cooled Fast Reactor (GFR) technology, its main goals being technology demonstration, qualification of innovative fuel materials, and proof of safety concept of GFR in general, since no reactor of this type has ever been operated so far. The presented work focuses mainly on description of ongoing national R&D projects and activities of V4G4 Centre of Excellence, their main goals, results and their position within GFR research in Europe. It includes an overview of experimental work that has been carried out on two state-of-the-art facilities dedicated to thermal-hydraulics research, as well as safety development of high-temperature gas-cooled reactors – the S-ALLEGRO integral facility in Czech Republic, and STU helium loop in Slovakia. A new concept of decay heat removal system for ALLEGRO is described, with computational analysis comparing its effectiveness in transients with the current design. The described activities include also development of computational tools in form of coupled thermal-hydraulics-3D reactor physics modelling for analyses of unprotected and reactivity induced accidents. Last but not least, a new concept of a safety system for GFR, based on prolongated rundown of the main blower(s), is described.

Název v anglickém jazyce

PROGRESS IN ALLEGRO THERMAL-HYDRAULICS RELATED RESEARCH AND DEVELOPMENT

Popis výsledku anglicky

Recent progress in research and development concerning thermal-hydraulics and related topics focused on the ALLEGRO reactor is presented in this paper. ALLEGRO is a concept of a demonstration unit of the Gas-cooled Fast Reactor (GFR) technology, its main goals being technology demonstration, qualification of innovative fuel materials, and proof of safety concept of GFR in general, since no reactor of this type has ever been operated so far. The presented work focuses mainly on description of ongoing national R&D projects and activities of V4G4 Centre of Excellence, their main goals, results and their position within GFR research in Europe. It includes an overview of experimental work that has been carried out on two state-of-the-art facilities dedicated to thermal-hydraulics research, as well as safety development of high-temperature gas-cooled reactors – the S-ALLEGRO integral facility in Czech Republic, and STU helium loop in Slovakia. A new concept of decay heat removal system for ALLEGRO is described, with computational analysis comparing its effectiveness in transients with the current design. The described activities include also development of computational tools in form of coupled thermal-hydraulics-3D reactor physics modelling for analyses of unprotected and reactivity induced accidents. Last but not least, a new concept of a safety system for GFR, based on prolongated rundown of the main blower(s), is described.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/TK01030116" target="_blank" >TK01030116: Návrh konceptu bezpečnostně důležitých prvků rychlého heliem chlazeného demonstračního reaktoru ALLEGRO</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

19th International Topical Meeting on Nuclear Reactor Thermal Hydraulics

ISBN

9789076971261

ISSN

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e-ISSN

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Počet stran výsledku

14

Strana od-do

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Název nakladatele

American Nuclear Society, Inc.

Místo vydání

Illinois

Místo konání akce

Brussel

Datum konání akce

6. 3. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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