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Models of Aging Equipment in the Probabilistic Safety Assessment

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F07%3A00014954" target="_blank" >RIV/61989100:27240/07:00014954 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Models of Aging Equipment in the Probabilistic Safety Assessment

  • Original language description

    The probabilistic safety assessment is a standardised tool for assessing and improving nuclear power plant safety. The probabilistic models of safety equipment, which represent the standpoint for evaluations, are based on assumption of constant failure rate. The probabilistic models are used within the fault trees, which represent the models of the systems. The fault trees are linked together with the event trees, which model the accident scenarios of the plant and which combine the systems together inan overall model. The new probabilistic safety assessment models, which include information about aging, are developed. The developed models are inserted into the models of the probabilistic safety assessment in order that the aging effects are considered. The results show a slight increase of risk considering the aging effects. At the same time, the results change the ordering of the most important equipment from aspect of risk decrease and risk increase factors.

  • Czech name

    Models of Aging Equipment in the Probabilistic Safety Assessment

  • Czech description

    Metodologie PSA (The probabilistic safety assessment) je standardním nástrojem pro odhad a zlepšování spolehlivosti a bezpečnosti jaderných zařízení. Pravděpodobnostní modely bezpečnosti jsou většinou založeny na předpokladu konstantní intenzity poruch.Jako modelový nástroj chvání celého systému se požívá metodika stromů poruch. Stromy poruch jsou spojeny se stromy událostí, které modelují scénáře různých havárií. V příspěvku jsou vyvíjeny nové modely PSA, které zahrnují rovněž informaci o stárnutí. Pro zvolené aplikační příklady jsou vypočteny výsledky, které poukazují na mírný vzestup rizika, způsobený efekty stárnutí.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BB - Applied statistics, operational research

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/1ET401940412" target="_blank" >1ET401940412: Dynamic Reliability Quantification and Modelling</a><br>

  • Continuities

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

Others

  • Publication year

    2007

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Ageing

  • ISBN

    978-92-79-06575-0

  • ISSN

  • e-ISSN

  • Number of pages

    271

  • Pages from-to

    199-208

  • Publisher name

    European Commission JRC EUR 22887 EN

  • Place of publication

    Itálie

  • Event location

  • Event date

  • Type of event by nationality

  • UT code for WoS article