Three-dimensional core in APROS plant analyzer

Eija-Karita Puska, Harri Kontio

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


    APROS process simulation environment has been created for the dynamic simulation of conventional and nuclear plant processes and chemical plant processes. In the area of nuclear plant simulation Nuclear Plant Analyzers (NPA) that are able to describe the PWR and BWR plants and the VVER-type plants have been the main area of the development. Three-dimensional core description can be included in all plant analyzer types. The three-dimensional core model consist of three-dimensional core neutronics described with a finite-difference model and one-dimensional thermal hydraulic channels where various thermal hydraulic model alternatives can be used. APROS three-dimensional core models have been designed to be used interactively via graphical user interface as an integral part of the plant analyzer. The paper describes the three-dimensional core model of APROS nuclear plant analyzer, gives overview of various types of cores described either for extensive plant analyzers or for calculation of core benchmarks, and gives examples of some asymmetric core transient types that can be studied with the full three-dimensional core model of Loviisa Plant Analyzer.
    Original languageEnglish
    Title of host publicationMathematics and computations, reactor physics, and environmental analyses
    Subtitle of host publicationProceedings of the international conference
    Place of PublicationLa Grange Park
    PublisherAmerican Nuclear Society (ANS)
    ISBN (Print)978-0-89448-198-7
    Publication statusPublished - 1995
    MoE publication typeA4 Article in a conference publication
    EventInternational Conference on Mathematics and Computations, Reactor Physics, and Environmental Analyses - Portland, United States
    Duration: 30 Apr 19954 May 1995


    ConferenceInternational Conference on Mathematics and Computations, Reactor Physics, and Environmental Analyses
    Country/TerritoryUnited States


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