Monitoring of BWR water chemistry and oxide films at Olkiluoto 1

Martin Bojinov, Petri Kinnunen, Timo Laitinen, Kari Mäkelä, Timo Saario, Pekka Sirkiä

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

    1 Citation (Scopus)

    Abstract

    Flow-through cells for monitoring high-temperature water chemistry have been designed and installed in the shutdown cooling system at Olkiluoto unit 1. The aim is to find correlations between water chemistry data and oxide film proper-ties in the BWR coolant, susceptibility to stress corrosion cracking and other forms of corrosion and the rate of activity incorporation. The employed monitoring unit has been in operation for one year. It provides relevant information that can be used both for assessing long-term trends and for sensitive detection of rapid changes in the coolant environment. High-temperature conductivity of the coolant has proven to be a sensitive indicator of changes in anionic impurity content and temperature variation of the coolant.
    Original languageEnglish
    Title of host publicationPlant Life Management
    Subtitle of host publicationMidterm status of a R&D project
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Pages179-194
    ISBN (Electronic)951-38-5728-X
    ISBN (Print)951-38-5727-1
    Publication statusPublished - 2001
    MoE publication typeA4 Article in a conference publication
    EventPlant Life Management: Midterm status of a R&D project - Espoo, Finland
    Duration: 1 Jan 20011 Jan 2001

    Publication series

    SeriesVTT Symposium
    Number218
    ISSN0357-9387

    Conference

    ConferencePlant Life Management
    CountryFinland
    CityEspoo
    Period1/01/011/01/01

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    Cite this

    Bojinov, M., Kinnunen, P., Laitinen, T., Mäkelä, K., Saario, T., & Sirkiä, P. (2001). Monitoring of BWR water chemistry and oxide films at Olkiluoto 1. In Plant Life Management: Midterm status of a R&D project (pp. 179-194). VTT Technical Research Centre of Finland. VTT Symposium, No. 218