Prediction of coolant temperatures and fluid flow patterns within a triga reactor core using RELAP5/MOD3.3 and comsol codes

Ahmed K. Alkaabi, Jeffrey C. King

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    1 Scopus citations

    Abstract

    The Geological Survey TRIGA Reactor (GSTR) is a 1 MW Mark I TRIGA reactor built in 1969 and located at the Denver Federal Center (DFC) in Lakewood, Colorado. This paper studies the effects of incorporating coolant cross-flow in thermal hydraulics models on prediction of coolant temperatures and fluid flow patterns in the GSTR core. To fully understand these effects, this paper compares coolant temperatures and fluid flow patterns predicted by four thermal hydraulics models built for the GSTR which are: RELAP5/MOD3.3 single channel, RELAP5/MOD3.3 multichannel, COMSOL single channel, and COMSOL multichannel models. Due to addition of coolant cross-flow, multichannel models' results remarkably vary in coolant temperatures and fluid flow paths than single channel models' results. Finally, the major differences in results between all developed thermal hydraulics models of the GSTR are highlighted.

    Original languageBritish English
    Title of host publicationInternational Conference on Physics of Reactors, PHYSOR 2018
    Subtitle of host publicationReactor Physics Paving the Way Towards More Efficient Systems
    Pages2394-2405
    Number of pages12
    ISBN (Electronic)9781713808510
    StatePublished - 2018
    Event2018 International Conference on Physics of Reactors: Reactor Physics Paving the Way Towards More Efficient Systems, PHYSOR 2018 - Cancun, Mexico
    Duration: 22 Apr 201826 Apr 2018

    Publication series

    NameInternational Conference on Physics of Reactors, PHYSOR 2018: Reactor Physics Paving the Way Towards More Efficient Systems
    VolumePart F168384-4

    Conference

    Conference2018 International Conference on Physics of Reactors: Reactor Physics Paving the Way Towards More Efficient Systems, PHYSOR 2018
    Country/TerritoryMexico
    CityCancun
    Period22/04/1826/04/18

    Keywords

    • Coolant
    • Flow
    • Fluid
    • Temperature
    • TRIGA

    Fingerprint

    Dive into the research topics of 'Prediction of coolant temperatures and fluid flow patterns within a triga reactor core using RELAP5/MOD3.3 and comsol codes'. Together they form a unique fingerprint.

    Cite this