A fast-acting hydrogen gas source for staged pneumatic high-speed acceleration of fusion plasma fuel pellets

S.A. Andersen, L. Bækmark

    Research output: Book/ReportReportResearch

    77 Downloads (Pure)

    Abstract

    This report describes a possible design of a fast, high-temperature, arc-driven hydrogen gas source module, to be used in a scheme for multi-stage high-speed pneumatic acceleration of fusion plasma fuel pellets. The potential of this
    scheme for operating with a moderate driving pressure at long acceleration path lengths is particular attractive for accelerating fragile hydrogen isotope ice pellets. From experiments with an ethanol-based arc unit, design parameters for
    a propeller module were assessed, and with a barrel-mounted ethanol module staged pneumatic acceleration of a plastic dummy pellet was demonstrated. In experiments with a hydrogenbased, cryogenic arc unit in which 200 joules of
    electrical energy were dissipated with a power level approaching S MW within 30 (is, the velocity of a 23-mg plastic pellet was increased from 1.7 to 2.4 km/s. Results in terms of barrel pressure transients and arc characteristics are described.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherRisø National Laboratory
    Number of pages36
    ISBN (Print)87-550-1623-5
    Publication statusPublished - 1990
    SeriesRisø-M
    Number2857
    ISSN0418-6435

    Keywords

    • Risø-M-2857

    Fingerprint Dive into the research topics of 'A fast-acting hydrogen gas source for staged pneumatic high-speed acceleration of fusion plasma fuel pellets'. Together they form a unique fingerprint.

    Cite this