Application of a Controlled Swirl in the XT-ADS Spallation Target

Ferry Roelofs, N.B. Siccama, H. Jeanmart, Katrien Van Tichelen, Marc Dierckx, Paul Schuurmans

    Research outputpeer-review


    Within the EUROTRANS project, a windowless spallation target is designed and assessed in which there is direct contact between the proton beamline vacuum from the accelerator and a lead-bismuth free surface flow. Windowless spallation targets, which are designed by SCK•CEN, based on their experience for the MYRRHA concept, are experimentally examined in a well instrumented water-loop at UCL. The design work and the experimental campaign are supported by numerical simulations which are performed at NRG. In the current paper, the application of a mild swirl in the windowless spallation target is assessed. For this purpose, SCK•CEN has designed and fabricate, a spallation target in which a controlled swirl is introduced in the annular feeder of the target nozzle. An experimental programme is performed at UCL in their water-loop to evaluate various swirl strengths in one specific target nozzle design. Prior to the experimental programme, numerical simulations were performed at NRG assessing the influence of various swirl strengths on the free surface behaviour. Experimental and numerical results show that a mild swirl stabilizes the free surface and also indicate that applying a stronger swirl leads to undesired free surface behaviour, ultimately leading to a strong vortex in the central downcomer.
    Original languageEnglish
    Title of host publicationProceedings of the 2008 International Congress on Advances in Nuclear Power Plants (ICAPP '08)
    Place of PublicationLa Grange Park, Illinois, United States
    StatePublished - 8 Jun 2008
    Event2008 - ICAPP - International Congress on Advances in Nuclear Power Plants - Anaheim, California
    Duration: 8 Jun 200812 Jun 2008


    Conference2008 - ICAPP - International Congress on Advances in Nuclear Power Plants
    Country/TerritoryUnited States
    CityAnaheim, California
    Internet address

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