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Statements

Subject Item
n2:RIV%2F61989100%3A27240%2F07%3A00014954%21RIV08-AV0-27240___
rdf:type
n9:Vysledek skos:Concept
dcterms: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 in an 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. 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 in an 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. 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.
dcterms:title
Models of Aging Equipment in the Probabilistic Safety Assessment Models of Aging Equipment in the Probabilistic Safety Assessment Models of Aging Equipment in the Probabilistic Safety Assessment
skos:prefLabel
Models of Aging Equipment in the Probabilistic Safety Assessment Models of Aging Equipment in the Probabilistic Safety Assessment Models of Aging Equipment in the Probabilistic Safety Assessment
skos:notation
RIV/61989100:27240/07:00014954!RIV08-AV0-27240___
n5:strany
199-208
n5:aktivita
n6:P
n5:aktivity
P(1ET401940412)
n5:dodaniDat
n7:2008
n5:domaciTvurceVysledku
n12:6396038
n5:druhVysledku
n19:D
n5:duvernostUdaju
n15:S
n5:entitaPredkladatele
n16:predkladatel
n5:idSjednocenehoVysledku
434604
n5:idVysledku
RIV/61989100:27240/07:00014954
n5:jazykVysledku
n17:eng
n5:klicovaSlova
Probabilistic safety assessment; risk modelling
n5:klicoveSlovo
n11:Probabilistic%20safety%20assessment n11:risk%20modelling
n5:kontrolniKodProRIV
[C66F50C4A2A8]
n5:mistoVydani
Itálie
n5:nazevZdroje
Ageing
n5:obor
n8:BB
n5:pocetDomacichTvurcuVysledku
1
n5:pocetTvurcuVysledku
2
n5:projekt
n20:1ET401940412
n5:rokUplatneniVysledku
n7:2007
n5:tvurceVysledku
Briš, Radim Cepin, Marko
s:numberOfPages
271
n13:hasPublisher
European Commission JRC EUR 22887 EN
n14:isbn
978-92-79-06575-0
n18:organizacniJednotka
27240