Phase II accumulator redesign

20/1-004 (CERN)



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DEMO meeting room
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Paolo Petagna
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Viren Bhanot
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Surface storage

  • Bart is preparing Spec document for vessel with vacuum insulation.
  • An important unknown is to determine if a heat hexchanger can fit inbetween vessel and vaccum shell. Does it change something for the vessel manufacturer, and is it easier for them to use a coil instead ?
  • What happens if the heat exchanger fails or leaks with time (shell to be oppened, expensive operation)...
  • Sara, focuses on the design of the piping below the vessel.

Demo slice test "C"

  • Ham-let components quotation asked
  • Heat exchangers
    • QB185x72         Sizing validated, Need approval from swep to make Qpipe and weld it to the port. Still pending estimated cost is 2900 eur
    • Q185x40            Sizing agreed, Quote received 2450eur
  • Pump Head expected to arrive in october : to be clarified with lewa, sooner would be better.
  • If head arrives late: 1 ATLAS DEMO head can be used with small piping adaptation.
  • Capillaries :
    • Flare connection with copper capillaries are the baseline for the slice test pressure sensor connection
    • Meanwhile they will be pressure tested 143 bar and burst tested as well.
    • Copper capillaries to be ordered for test
    • In case of failure Frederic proposes a home made capillariy with vcr brased on.


There are minutes attached to this event. Show them.
    • 9:00 AM 10:00 AM
      Conveners: Bart Verlaat (CERN), Dina Giakoumi (CERN), Jerome Daguin (CERN), Loic Davoine (CERN), Lukasz Zwalinski (CERN), Tym Pakulski (CERN), Yann HERPIN (CNRS), Yann Herpin (Centre National de la Recherche Scientifique (FR))
      • 9:00 AM
        Integration 20m
        Speakers: Eleftherios Antonopoulos (National Technical Univ. of Athens (GR)), Jamie Thomas Pinnell (CERN), Nebojsa-Boki Smiljkovic (CERN), Raphael Vuillermet (CERN)
      • 9:20 AM
        Mechanical design 20m
        Speakers: Krzysztof Sliwa (CERN), Yann Herpin (Centre National de la Recherche Scientifique (FR))
      • 9:40 AM
        Accu process 20m
        Speakers: Bart Verlaat (CERN), Loic Davoine (CERN), Viren Bhanot (CERN), Yann Herpin (Centre National de la Recherche Scientifique (FR))