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
—