Power distribution gradients in WWER type cores and fuel failure root causes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F14%3A%230000934" target="_blank" >RIV/26722445:_____/14:#0000934 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.nucengdes.2013.11.069" target="_blank" >http://dx.doi.org/10.1016/j.nucengdes.2013.11.069</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nucengdes.2013.11.069" target="_blank" >10.1016/j.nucengdes.2013.11.069</a>

Result language

angličtina

Original language name

Power distribution gradients in WWER type cores and fuel failure root causes

Original language description

Neutron flux non-uniformity and gradients of neutron current resulting in corresponding power (fission rate) distribution changes can represent root causes of the fuel failure. Such situation can be expected in vicinity of some core heterogeneities and construction materials. Since needed data cannot be obtained from nuclear power plant (NPP), results of some benchmark type experiments performed on light water, zero-power research reactor LR-0 were used for investigation of the above phenomenon. Attention was focused on determination of the spatial power distribution changes in fuel assemblies (FAs): Containing fuel rods (FRs) with Gd burnable absorber in WWER-440 and WWER-1000 type cores, Neighboring the core blanket and dummy steel assembly simulators on the periphery of the WWER-440 standard and low leakage type cores, resp., Neighboring baffle in WWER-1000 type cores, and Neighboring control rod (CR) in WWER-440 type cores, namely (a) power peak in axial power distribution in perip

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JF - Nuclear energy

OECD FORD branch

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Project

<a href="/en/project/LM2010015" target="_blank" >LM2010015: Reactors of Řež - Nuclear research reactors LVR-15 and LR-0</a><br>

Continuities

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

Publication year

2014

Confidentiality

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

Name of the periodical

Nuclear Engineering and Design

ISSN

0029-5493

e-ISSN

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Volume of the periodical

267

Issue of the periodical within the volume

2

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

207-217

UT code for WoS article

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EID of the result in the Scopus database

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