Probabilistic assessment of pressurised thermal shocks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F14%3A%230001554" target="_blank" >RIV/46356088:_____/14:#0001554 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nucengdes.2013.08.024" target="_blank" >http://dx.doi.org/10.1016/j.nucengdes.2013.08.024</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nucengdes.2013.08.024" target="_blank" >10.1016/j.nucengdes.2013.08.024</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Probabilistic assessment of pressurised thermal shocks

Popis výsledku v původním jazyce

In this paper, description of complete probabilistic PTS assessment for a VVER 1000 RPV is presented, in particular, both the methodology and the results are attached. The methodology corresponds to the Unified Procedure for Lifetime Assessment of Components and Piping in WWER NPPs, "VERLIFE", Version 2008. The main parameters entering the analysis, which are treated as statistical distributions, are as follows: initial value of material reference temperature T-0, reference temperature shift Delta T-0 due to neutron fluence, neutron fluence, size, shape, position and density of cracks in the RPV wall, fracture toughness of RPV material (Master Curve concept is used). The first step of the analysis consists in selection of sequences potentially leadingto PTS, their grouping, establishing their frequencies, and selecting of representative scenarios within all groups. Modified PSA model is used for this purpose. The second step consists in thermal hydraulic analyses of the representative

Název v anglickém jazyce

Probabilistic assessment of pressurised thermal shocks

Popis výsledku anglicky

In this paper, description of complete probabilistic PTS assessment for a VVER 1000 RPV is presented, in particular, both the methodology and the results are attached. The methodology corresponds to the Unified Procedure for Lifetime Assessment of Components and Piping in WWER NPPs, "VERLIFE", Version 2008. The main parameters entering the analysis, which are treated as statistical distributions, are as follows: initial value of material reference temperature T-0, reference temperature shift Delta T-0 due to neutron fluence, neutron fluence, size, shape, position and density of cracks in the RPV wall, fracture toughness of RPV material (Master Curve concept is used). The first step of the analysis consists in selection of sequences potentially leadingto PTS, their grouping, establishing their frequencies, and selecting of representative scenarios within all groups. Modified PSA model is used for this purpose. The second step consists in thermal hydraulic analyses of the representative

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JF - Jaderná energetika

OECD FORD obor

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Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Nuclear Engineering and Design

ISSN

0029-5493

e-ISSN

—

Svazek periodika

269

Číslo periodika v rámci svazku

SI

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

165-170

Kód UT WoS článku

000333946900025

EID výsledku v databázi Scopus

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