Preliminary Assessment of As-Built Design Characteristics for the Transformational Challenge Reactor

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Abstract

The Transformational Challenge Reactor design effort in 2021 included constructing a full-core mock-up of the reactor in-core components. This effort was undertaken to ascertain differences between the as-designed and as-built individual components and determine impacts of assembly of the as-built components into a full-scale core assembly. Through this effort, several deviations from as-designed components were observed. Some of these deviations were related to the additive manufacturing processes, and others were related to deviations in traditionally manufactured components. The tolerance stack-up of these minor deviations was evaluated and quantified. A new layered geometry capability in Shift (CAD + combinatorial) was used to model variations in the placement of YH moderator rods, and the effects of this variation on keff and power distribution are analyzed in this paper. Bison was used to model the thermomechanical effect of contact between adjacent fuel elements.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Physics of Reactors, PHYSOR 2022
PublisherAmerican Nuclear Society
Pages3117-3126
Number of pages10
ISBN (Electronic)9780894487873
DOIs
StatePublished - 2022
Event2022 International Conference on Physics of Reactors, PHYSOR 2022 - Pittsburgh, United States
Duration: May 15 2022May 20 2022

Publication series

NameProceedings of the International Conference on Physics of Reactors, PHYSOR 2022

Conference

Conference2022 International Conference on Physics of Reactors, PHYSOR 2022
Country/TerritoryUnited States
CityPittsburgh
Period05/15/2205/20/22

Funding

Notice: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan).

FundersFunder number
U.S. Department of Energy

    Keywords

    • 3D printing
    • TRISO
    • additive manufacturing
    • microreactor
    • yttrium hydride

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