Počet záznamů: 1
Thermal and creep analysis of VVER-1000 reactor pressure vessel at high temperatures caused by fuel melting during severe accident
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SYSNO ASEP 0572051 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV Záznam nebyl označen do RIV Název Thermal and creep analysis of VVER-1000 reactor pressure vessel at high temperatures caused by fuel melting during severe accident Tvůrce(i) Gabriel, Dušan (UT-L) RID, ORCID
Gál, P. (CZ)
Kotouč, M. (CZ)
Dymáček, Petr (UFM-A) RID, ORCID
Masák, Jan (UT-L)
Kopačka, Ján (UT-L) RID, ORCIDCelkový počet autorů 6 Zdroj.dok. Engineering Mechanics 2023 : 29th International Conference, 29. - Prague : Institute of Thermomechanics of the Czech Academy of Sciences, 2023 / Radolf V. ; Zolotarev I. - ISSN 1805-8248 - ISBN 978-80-87012-84-0 Rozsah stran s. 71-74 Poč.str. 4 s. Forma vydání Tištěná - P Akce Engineering Mechanics 2023 /29./ Datum konání 09.05.2023 - 11.05.2023 Místo konání Milovy Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova integrity of reactor pressure vessel ; severe accident ; ASTEC ; creep ; FEM Vědní obor RIV JF - Jaderná energetika Obor OECD Nuclear related engineering CEP TITSSUJB938 GA TA ČR - Technologická agentura ČR Institucionální podpora UT-L - RVO:61388998 DOI 10.21495/em2023-71 Anotace Thermal and creep analysis of the VVER-1000 reactor pressure vessel (RPV) was performed at high temperatures caused by fuel melting during severe accident. First, the integral code ASTEC was applied simulating severe accident evolution since an initiating event up to a hypothetical radioactive release into the environment. The ASTEC outputs including the remaining RPV wall thickness, the heat flux achieved and the temperature profile in the ablated vessel wall served as boundary conditions for the consequent assessment of RPV integrity carried out with the aid of finite element method (FEM). The FEM analysis was performed including the creep behaviour of RPV material using a complex creep probabilistic exponential model with damage. The objective of the analysis was to computationally assess emergency condition and, on this basis, to propose a general methodology for evaluating the integrity of RPV at high temperatures due to fuel melting during severe accident. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2024 Elektronická adresa https://www.engmech.cz/improc/2023/071.pdf
Počet záznamů: 1