Corrosion products behavior and source term reduction: Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement

Matthieu Wintergerst, Stéphane Taunier, Odile De Bouvier, Cédric Pokor, Aki Toivonen, Gilles Ranchoux, Jean-Luc Bretelle, Florence Carrette

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

    Abstract

    The release of corrosion products by the various components of the primary system into the cooling water may induce some issues on reactor control and on radiation dose rates. Several ways are available to reduce the amount and transportation of corrosion products in the primary coolant. The first approach is related to the materials used in the primary system. The paper presents the recent feedback regarding the primary coolant chemistry and radiochemistry after Steam Generators Replacements (SGR). The second approach is to optimize the primary water chemistry to reduce the release and the transport of the corrosion products through pH control by LiOH concentration. However, a detrimental effect of increased lithium hydroxide concentration on time to failure of irradiated SS 304 was clearly shown. Considering this risk, EDF is not favourable to the implementation of any elevated lithium chemistry program for its reactors without a better knowledge of the lithium hydroxide influence on IASCC of stainless steels.
    Original languageEnglish
    Title of host publicationNuclear Plant Chemistry Conference 2010 (NPC 2010)
    Subtitle of host publicationInternational Conference on Water Chemistry of Nuclear Reactor Systems and 8th International Radiolysis, Electrochemistry and Materials Performance Workshop : Quebec City, Quebec, Canada, 3-7 October 2010
    Place of PublicationToronto
    Number of pages18
    Publication statusPublished - 2010
    MoE publication typeA4 Article in a conference publication

    Fingerprint

    Steam generators
    Lithium
    Corrosion
    Feedback
    Coolants
    Cooling water
    Dosimetry
    Stainless steel
    Water

    Keywords

    • corrosion
    • PWR
    • irradiation
    • stainless steel

    Cite this

    Wintergerst, M., Taunier, S., De Bouvier, O., Pokor, C., Toivonen, A., Ranchoux, G., ... Carrette, F. (2010). Corrosion products behavior and source term reduction: Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement. In Nuclear Plant Chemistry Conference 2010 (NPC 2010) : International Conference on Water Chemistry of Nuclear Reactor Systems and 8th International Radiolysis, Electrochemistry and Materials Performance Workshop : Quebec City, Quebec, Canada, 3-7 October 2010 Toronto.
    Wintergerst, Matthieu ; Taunier, Stéphane ; De Bouvier, Odile ; Pokor, Cédric ; Toivonen, Aki ; Ranchoux, Gilles ; Bretelle, Jean-Luc ; Carrette, Florence. / Corrosion products behavior and source term reduction : Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement. Nuclear Plant Chemistry Conference 2010 (NPC 2010) : International Conference on Water Chemistry of Nuclear Reactor Systems and 8th International Radiolysis, Electrochemistry and Materials Performance Workshop : Quebec City, Quebec, Canada, 3-7 October 2010. Toronto, 2010.
    @inproceedings{8f47158fa61d4cb4a2bec2794813b461,
    title = "Corrosion products behavior and source term reduction: Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement",
    abstract = "The release of corrosion products by the various components of the primary system into the cooling water may induce some issues on reactor control and on radiation dose rates. Several ways are available to reduce the amount and transportation of corrosion products in the primary coolant. The first approach is related to the materials used in the primary system. The paper presents the recent feedback regarding the primary coolant chemistry and radiochemistry after Steam Generators Replacements (SGR). The second approach is to optimize the primary water chemistry to reduce the release and the transport of the corrosion products through pH control by LiOH concentration. However, a detrimental effect of increased lithium hydroxide concentration on time to failure of irradiated SS 304 was clearly shown. Considering this risk, EDF is not favourable to the implementation of any elevated lithium chemistry program for its reactors without a better knowledge of the lithium hydroxide influence on IASCC of stainless steels.",
    keywords = "corrosion, PWR, irradiation, stainless steel",
    author = "Matthieu Wintergerst and St{\'e}phane Taunier and {De Bouvier}, Odile and C{\'e}dric Pokor and Aki Toivonen and Gilles Ranchoux and Jean-Luc Bretelle and Florence Carrette",
    note = "Project code: 36811",
    year = "2010",
    language = "English",
    isbn = "9781617823954",
    booktitle = "Nuclear Plant Chemistry Conference 2010 (NPC 2010)",

    }

    Wintergerst, M, Taunier, S, De Bouvier, O, Pokor, C, Toivonen, A, Ranchoux, G, Bretelle, J-L & Carrette, F 2010, Corrosion products behavior and source term reduction: Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement. in Nuclear Plant Chemistry Conference 2010 (NPC 2010) : International Conference on Water Chemistry of Nuclear Reactor Systems and 8th International Radiolysis, Electrochemistry and Materials Performance Workshop : Quebec City, Quebec, Canada, 3-7 October 2010. Toronto.

    Corrosion products behavior and source term reduction : Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement. / Wintergerst, Matthieu; Taunier, Stéphane; De Bouvier, Odile; Pokor, Cédric; Toivonen, Aki; Ranchoux, Gilles; Bretelle, Jean-Luc; Carrette, Florence.

    Nuclear Plant Chemistry Conference 2010 (NPC 2010) : International Conference on Water Chemistry of Nuclear Reactor Systems and 8th International Radiolysis, Electrochemistry and Materials Performance Workshop : Quebec City, Quebec, Canada, 3-7 October 2010. Toronto, 2010.

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

    TY - GEN

    T1 - Corrosion products behavior and source term reduction

    T2 - Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement

    AU - Wintergerst, Matthieu

    AU - Taunier, Stéphane

    AU - De Bouvier, Odile

    AU - Pokor, Cédric

    AU - Toivonen, Aki

    AU - Ranchoux, Gilles

    AU - Bretelle, Jean-Luc

    AU - Carrette, Florence

    N1 - Project code: 36811

    PY - 2010

    Y1 - 2010

    N2 - The release of corrosion products by the various components of the primary system into the cooling water may induce some issues on reactor control and on radiation dose rates. Several ways are available to reduce the amount and transportation of corrosion products in the primary coolant. The first approach is related to the materials used in the primary system. The paper presents the recent feedback regarding the primary coolant chemistry and radiochemistry after Steam Generators Replacements (SGR). The second approach is to optimize the primary water chemistry to reduce the release and the transport of the corrosion products through pH control by LiOH concentration. However, a detrimental effect of increased lithium hydroxide concentration on time to failure of irradiated SS 304 was clearly shown. Considering this risk, EDF is not favourable to the implementation of any elevated lithium chemistry program for its reactors without a better knowledge of the lithium hydroxide influence on IASCC of stainless steels.

    AB - The release of corrosion products by the various components of the primary system into the cooling water may induce some issues on reactor control and on radiation dose rates. Several ways are available to reduce the amount and transportation of corrosion products in the primary coolant. The first approach is related to the materials used in the primary system. The paper presents the recent feedback regarding the primary coolant chemistry and radiochemistry after Steam Generators Replacements (SGR). The second approach is to optimize the primary water chemistry to reduce the release and the transport of the corrosion products through pH control by LiOH concentration. However, a detrimental effect of increased lithium hydroxide concentration on time to failure of irradiated SS 304 was clearly shown. Considering this risk, EDF is not favourable to the implementation of any elevated lithium chemistry program for its reactors without a better knowledge of the lithium hydroxide influence on IASCC of stainless steels.

    KW - corrosion

    KW - PWR

    KW - irradiation

    KW - stainless steel

    M3 - Conference article in proceedings

    SN - 9781617823954

    BT - Nuclear Plant Chemistry Conference 2010 (NPC 2010)

    CY - Toronto

    ER -

    Wintergerst M, Taunier S, De Bouvier O, Pokor C, Toivonen A, Ranchoux G et al. Corrosion products behavior and source term reduction: Guidelines and feedback for EDF PWRs, concerning the B/Li coordinations and steam generators replacement. In Nuclear Plant Chemistry Conference 2010 (NPC 2010) : International Conference on Water Chemistry of Nuclear Reactor Systems and 8th International Radiolysis, Electrochemistry and Materials Performance Workshop : Quebec City, Quebec, Canada, 3-7 October 2010. Toronto. 2010