Validation of Divertor Cassette locking system with a hydraulic jack tool

V. Takalo (Corresponding Author), S. Esque, J. Mattila, M. Vilenius, Jorma Järvenpää, Mikko Siuko, L. Semeraro, M. Irving, C. Damiani

    Research output: Contribution to journalArticleScientificpeer-review

    3 Citations (Scopus)

    Abstract

    The divertor area of ITER vacuum vessel consists of 54 modular cassettes which must be exchanged after every 3–4 years of plasma operations. Divertor Cassettes are locked in the vacuum vessel by means of compressing them against the rails mounted in the inner and outer walls of the vacuum vessel. According to ITER reference cassette locking system, a Divertor Cassette has to be preloaded with a compression force of 360 kN against the vacuum vessel rails. The preloading of the cassettes is carried out with a hydraulic jack tool which is fitted into the cassette body. The Jack will transmit a hydraulic force by pushing the cassette latches against the outer rails, transmitting therefore the required preloading compression force to the cassette. This paper deals with the validation of Divertor Cassette locking system and it also describes the design and testing of a radiation-hard, water hydraulic jack. The validation of Divertor Cassette locking system has been the first Divertor Maintenance operation tested at Divertor Test Platform 2.
    Original languageEnglish
    Pages (from-to)1808-1812
    Number of pages5
    JournalFusion Engineering and Design
    Volume84
    Issue number7-11
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed
    Event25th Symposium on Fusion Technology, SOFT-25 - Rostock, Germany
    Duration: 15 Sep 200819 Sep 2008

    Fingerprint

    Hydraulic tools
    Vacuum
    Rails
    Jacks
    Hydraulics
    Plasmas
    Radiation
    Testing
    Water

    Keywords

    • Divertor Cassette
    • Remote handling
    • Water hydraulic jack

    Cite this

    Takalo, V., Esque, S., Mattila, J., Vilenius, M., Järvenpää, J., Siuko, M., ... Damiani, C. (2009). Validation of Divertor Cassette locking system with a hydraulic jack tool. Fusion Engineering and Design, 84(7-11), 1808-1812. https://doi.org/10.1016/j.fusengdes.2008.11.039
    Takalo, V. ; Esque, S. ; Mattila, J. ; Vilenius, M. ; Järvenpää, Jorma ; Siuko, Mikko ; Semeraro, L. ; Irving, M. ; Damiani, C. / Validation of Divertor Cassette locking system with a hydraulic jack tool. In: Fusion Engineering and Design. 2009 ; Vol. 84, No. 7-11. pp. 1808-1812.
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    title = "Validation of Divertor Cassette locking system with a hydraulic jack tool",
    abstract = "The divertor area of ITER vacuum vessel consists of 54 modular cassettes which must be exchanged after every 3–4 years of plasma operations. Divertor Cassettes are locked in the vacuum vessel by means of compressing them against the rails mounted in the inner and outer walls of the vacuum vessel. According to ITER reference cassette locking system, a Divertor Cassette has to be preloaded with a compression force of 360 kN against the vacuum vessel rails. The preloading of the cassettes is carried out with a hydraulic jack tool which is fitted into the cassette body. The Jack will transmit a hydraulic force by pushing the cassette latches against the outer rails, transmitting therefore the required preloading compression force to the cassette. This paper deals with the validation of Divertor Cassette locking system and it also describes the design and testing of a radiation-hard, water hydraulic jack. The validation of Divertor Cassette locking system has been the first Divertor Maintenance operation tested at Divertor Test Platform 2.",
    keywords = "Divertor Cassette, Remote handling, Water hydraulic jack",
    author = "V. Takalo and S. Esque and J. Mattila and M. Vilenius and Jorma J{\"a}rvenp{\"a}{\"a} and Mikko Siuko and L. Semeraro and M. Irving and C. Damiani",
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    Takalo, V, Esque, S, Mattila, J, Vilenius, M, Järvenpää, J, Siuko, M, Semeraro, L, Irving, M & Damiani, C 2009, 'Validation of Divertor Cassette locking system with a hydraulic jack tool', Fusion Engineering and Design, vol. 84, no. 7-11, pp. 1808-1812. https://doi.org/10.1016/j.fusengdes.2008.11.039

    Validation of Divertor Cassette locking system with a hydraulic jack tool. / Takalo, V. (Corresponding Author); Esque, S.; Mattila, J.; Vilenius, M.; Järvenpää, Jorma; Siuko, Mikko; Semeraro, L.; Irving, M.; Damiani, C.

    In: Fusion Engineering and Design, Vol. 84, No. 7-11, 2009, p. 1808-1812.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Takalo, V.

    AU - Esque, S.

    AU - Mattila, J.

    AU - Vilenius, M.

    AU - Järvenpää, Jorma

    AU - Siuko, Mikko

    AU - Semeraro, L.

    AU - Irving, M.

    AU - Damiani, C.

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    AB - The divertor area of ITER vacuum vessel consists of 54 modular cassettes which must be exchanged after every 3–4 years of plasma operations. Divertor Cassettes are locked in the vacuum vessel by means of compressing them against the rails mounted in the inner and outer walls of the vacuum vessel. According to ITER reference cassette locking system, a Divertor Cassette has to be preloaded with a compression force of 360 kN against the vacuum vessel rails. The preloading of the cassettes is carried out with a hydraulic jack tool which is fitted into the cassette body. The Jack will transmit a hydraulic force by pushing the cassette latches against the outer rails, transmitting therefore the required preloading compression force to the cassette. This paper deals with the validation of Divertor Cassette locking system and it also describes the design and testing of a radiation-hard, water hydraulic jack. The validation of Divertor Cassette locking system has been the first Divertor Maintenance operation tested at Divertor Test Platform 2.

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