APROS BWR plant analyser with 3-D core

Eija Karita Puska, Sixten Norrman

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


    The paper presents APROS BWR, Plant Analyser with 3-D core model. The model describes the Finnish Olkiluoto BWR plant owned by the TVO utility. In the APROS 3-D core model the neutronics part was described with 500 quadratic fuel assemblies. Two identical fuel assemblies were placed into each one-dimensional thermal hydraulic channel that were described either with the five- or the six-equation thermal hydraulic model. Thus, there are two independent plant analyser models with 3-D core, the five-equation plant analyser and the six-equation plant analyser. The results of the APROS 3-D core model with the alternative thermal hydraulics models are compared with the steady state results of the plant design code results. Three particular plant transients are calculated with the 3-D plant analyser using the five-equation thermal hydraulic model. The paper contains also a qualitative comparison of the transient results with the results of similar transients using 1-D core model.
    Original languageEnglish
    Title of host publicationCD-ROM Proceedings of the 7th International Conference on Nuclear Engineering
    PublisherJapan Society of Mechanical Engineers
    Number of pages10
    Publication statusPublished - 1999
    MoE publication typeNot Eligible
    Event7th International Conference on Nuclear Engineering, ICONE-7 - Tokyo, Japan
    Duration: 19 Apr 199923 Apr 1999


    Conference7th International Conference on Nuclear Engineering, ICONE-7


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