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CEC-ICMC 2017 - Abstracts, Timetable and Presentations

9โ€“13 Jul 2017
Monona Terrace Community and Convention Center
US/Central timezone

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Session

C2OrC - Safety

C2OrC
11 Jul 2017, 11:00
Monona Terrace Community and Convention Center

Monona Terrace Community and Convention Center

Madison, Wisconsin USA

Conveners

C2OrC - Safety

  • Wesley Johnson (NASA / GSFC)
  • John Jurns (European Spallation Source ERIC)

Presentation materials

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  1. 169. Safety Studies on Vacuum Insulated Liquid Helium Cryostats
    Christina Weber (Karlsruhe Institute of Technology)
    11/07/2017, 11:00
    Contributed Oral Presentation

    The loss of insulating vacuum is often considered as a reasonable foreseeable accident for the dimensioning of cryogenic safety relief devices. The cryogenic safety test facility PICARD was designed to investigate such events. In the course of first experiments, discharge instabilities of the spring loaded safety relief valve occurred, the so-called chattering and pumping. These instabilities...

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  2. 147. Relief device sizing for helium and hydrogen applications
    Mr Rainer Soika (Linde Kryotechnik AG)
    11/07/2017, 11:15
    Contributed Oral Presentation

    The sudden loss of insulating vacuum is a potentially severe event to be considered in the safety analysis of cryogenic applications. When insulating vacuum is broken, large heat fluxes can heat up and expand cryogenic fluids inside the vacuum-insulated apparatus in a very short time.
    The effect is particularly pronounced in applications involving helium, hydrogen and neon at temperatures...

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  3. 205. Cryogen Risk Assessment in Underground Mining
    Mr Justin Sivret (Laurentian University / MIRARCO)
    11/07/2017, 11:45
    Contributed Oral Presentation

    Reclassification of diesel engine exhaust as a carcinogen, has led to the mining industry exploring zero-emission alternatives to power underground mining equipment. Most interest lies with electric driven mining machines, however a new possibility is engines fueled with cryogens. This research conducts a formal risk assessment for cryogenic fueled equipment in underground environments. These...

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  4. 174. Cryogenics for Mining Safety
    Mr Rohan Fernando (CDC-NIOSH)
    11/07/2017, 12:00
    Contributed Oral Presentation

    In the event of an underground mine emergency that makes the ambient air irrespirable, mineworkers need to use Self-Contained Breathing Apparatus (SCBA) for escaping or to be rescued, and if trapped, be provided with breathable air to sustain life in shelters termed Refuge Alternatives. NIOSH explored cryogenic technologies for these applications and with the help of NASA built Cryogenic...

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  5. 365. Cryogenic safety in helium cryostat at CERN
    Yann Leclercq (CERN), Vittorio Parma (CERN)
    11/07/2017, 12:15
    Contributed Oral Presentation

    Cryostats contain large cold surfaces, cryogenic fluids, and sometimes large stored energy (e.g. energized magnets), with the potential risk of sudden liberation of energy through thermodynamic transformations of the fluids, which can be uncontrolled and lead to a dangerous increase of pressure inside the cryostat envelopes. The consequence, in the case of a rupture of the envelopes, may be...

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