Overview of progress on the European DEMO remote maintenance strategy

Oliver Crofts (Corresponding Author), Antony Loving, Daniel Iglesias, Matti Coleman, Mikko Siuko, Martin Mittwollen, Vicente Queral, Alberto Vale, Eric Villedieu

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    27 Citations (Scopus)

    Abstract

    The EU-DEMO remote maintenance strategy must be relevant for a range of in-vessel component design options. The remote maintenance project must provide an understanding of the limits of the strategy and technologies so as to inform the developing plant design of the maintenance constraints. A comprehensive set of maintenance requirements has been produced, in conjunction with the plant designers, against which design options can be assessed.The proposed maintenance solutions are based around a strategy that deploys casks above each of the vertical ports to exchange the blanket segments and at each of the divertor ports to exchange the divertor cassettes. The casks deploy remote handling equipment to open and close the vacuum vessel, remove and re-install pipework, and replace the in-vessel components.A technical design risk assessment has shown that the largest risks are common to all of the proposed solutions and that they are associated with two key issues, first; the ability to handle the large blanket and divertor components to the required positional accuracy with limited viewing and position feedback, and second; to perform rapid and reliable pipe connections, close to the blankets, with demonstrated quality that meets the safety requirements.
    Original languageEnglish
    Pages (from-to)1392-1398
    JournalFusion Engineering and Design
    Volume109-111
    Issue numberPart B
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

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    Keywords

    • DEMO
    • remote
    • maintenance
    • progress
    • blanket
    • divertor

    Cite this

    Crofts, O., Loving, A., Iglesias, D., Coleman, M., Siuko, M., Mittwollen, M., Queral, V., Vale, A., & Villedieu, E. (2016). Overview of progress on the European DEMO remote maintenance strategy. Fusion Engineering and Design, 109-111(Part B), 1392-1398. https://doi.org/10.1016/j.fusengdes.2015.12.013