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Modelling of the impact of local effects on fuel-cladding interaction during power ramp

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F14%3A%230001654" target="_blank" >RIV/46356088:_____/14:#0001654 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1115/ICONE22-30807" target="_blank" >http://dx.doi.org/10.1115/ICONE22-30807</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1115/ICONE22-30807" target="_blank" >10.1115/ICONE22-30807</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Modelling of the impact of local effects on fuel-cladding interaction during power ramp

  • Original language description

    The power increase rate of the reactor is often derived using the fuel performance code. Too restrictive rates are not desirable since they lead to the loss of production. On the other hand fast increase or not well controlled axial power oscillation mayresult in the rod failure due to pellet-cladding interaction. Most of the currently used fuel performance codes treat the stack of the fuel pellets using a simplified ?1.5D? approach where individual pellets are not distinguished and the fuel stack is taken to be symmetrical. In reality, several effects must be taken into account when more accurate description is required. These local effects include contact at pellet-pellet interface, fuel pellet cracking under thermal stress, fabrication defects pellets or azimuthal asymmetry in the heat generation or heat transfer conditions due to rod bowing or presence of control rods. Detailed models of the local phenomena are therefore being developed at ÚJV Řež using the ABAQUS 6.12 code and us

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    JF - Nuclear energy

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    N - Vyzkumna aktivita podporovana z neverejnych zdroju

Others

  • Publication year

    2014

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    2014 22nd International Conference on Nuclear Engineering Volume 1

  • ISBN

    978-0-7918-4589-9

  • ISSN

  • e-ISSN

  • Number of pages

    7

  • Pages from-to

  • Publisher name

    ASME

  • Place of publication

    New York, USA

  • Event location

    Praha

  • Event date

    Jan 1, 2014

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article