Cost Saving When Using Enhanced Conductivity Nuclear Fuel Containing BeO in WWER-1000 Reactors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F14%3A00227185" target="_blank" >RIV/68407700:21220/14:00227185 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1115/ICONE22-30901" target="_blank" >http://dx.doi.org/10.1115/ICONE22-30901</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/ICONE22-30901" target="_blank" >10.1115/ICONE22-30901</a>
Alternative languages
Result language
angličtina
Original language name
Cost Saving When Using Enhanced Conductivity Nuclear Fuel Containing BeO in WWER-1000 Reactors
Original language description
Current pressurized water reactors utilize sintered UO2 that has a number of advantages and disadvantages. Uranium Dioxide?s low thermal conductivity results in a large thermal gradient within the fuel pellet corresponding to higher centerline temperatures compared to other potential fuel forms. These gradients result in non-uniform thermal expansion leading to large internal stresses resulting in cracking of the pellet and fuel-clad interaction, which can lead to loss of the integrity of the fuel pin.Higher fuel temperatures also increase the release of fission gases. Fuels with higher thermal conductivity may alleviate or reduce the severity of these adverse conditions. It is shown that higher thermal conductivity can be obtained by adding BeO to the basic UO2 matrix. This paper focuses on WWER1000 hexagonal fuel geometry. Improvements when using 10% of BeO, as proposed in this paper, reduce the centerline nuclear fuel temperature by 234°C and improve the fuel economy while reducing
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JF - Nuclear energy
OECD FORD branch
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Result continuities
Project
<a href="/en/project/TE01020455" target="_blank" >TE01020455: Centre for Advanced Nuclear Technologies (CANUT)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
22nd International Conference on Nuclear Engineering
ISBN
978-0-7918-4589-9
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
ASME
Place of publication
New York
Event location
Prague
Event date
Jul 7, 2014
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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