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Geometry Optimization of Dispersed U-Mo Fuel for Light Water Reactors

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00363650" target="_blank" >RIV/68407700:21340/23:00363650 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1016/j.net.2023.06.003" target="_blank" >https://doi.org/10.1016/j.net.2023.06.003</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.net.2023.06.003" target="_blank" >10.1016/j.net.2023.06.003</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Geometry Optimization of Dispersed U-Mo Fuel for Light Water Reactors

  • Original language description

    The Uranium/Molybdenum metallic fuel has been proposed as promising advanced fuel concept especially in the dispersed fuel geometry. The fuel is manufactured in the form of small fuel droplets (particles) placed in a fuel pin covered by a matrix. In addition to fuel particles, the pin contains voids necessary to compensate material swelling and release of fission gases from the fuel particles. When investigating this advanced fuel design, two important questions were raised. Can the dispersed fuel performance be analyzed using homogenization without significant inaccuracy and what size of fuel drops should be used for the fuel design to achieve optimal utilization? To answer, 2D burnup calculations of fuel assemblies with different fuel particle sizes were performed. The analysis was supported by an additional 3D fuel pin calculation with the dispersed fuel particle size variations. The results show a significant difference in the multiplication factor between the homogenized calculation and the detailed calculation with precise fuel particle geometry. The recommended fuel particle size depends on the final burnup to be achieved. As shown in the results, for lower burnup levels, larger fuel drops offer better multiplication factor. However, when higher burnup levels are required, then smaller fuel drops perform better.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

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

Others

  • Publication year

    2023

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Nuclear Engineering and Technology

  • ISSN

    1738-5733

  • e-ISSN

    2234-358X

  • Volume of the periodical

    55

  • Issue of the periodical within the volume

    9

  • Country of publishing house

    KR - KOREA, REPUBLIC OF

  • Number of pages

    8

  • Pages from-to

    3464-3471

  • UT code for WoS article

    001044030100001

  • EID of the result in the Scopus database

    2-s2.0-85165058636