Probabilistic assessment of pressurised thermal shocks

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Probabilistic assessment of pressurised thermal shocks

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JF - Nuclear energy

OECD FORD branch

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Project

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Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2014

Confidentiality

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

Name of the periodical

Nuclear Engineering and Design

ISSN

0029-5493

e-ISSN

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Volume of the periodical

269

Issue of the periodical within the volume

SI

Country of publishing house

CH - SWITZERLAND

Number of pages

6

Pages from-to

165-170

UT code for WoS article

000333946900025

EID of the result in the Scopus database

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