LArTPC Document 230-v1

DIFFUSION OF GASES IN AIR AND ITS EFFECT ON ODH

Document #:
LARTPC-doc-230-v1
Document type:
Publication
Submitted by:
Hans Jostlein
Updated by:
Hans Jostlein
Document Created:
07 Dec 2006, 11:37
Contents Revised:
07 Dec 2006, 11:37
Metadata Revised:
07 Dec 2006, 11:37
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Abstract:
Oxygen concentration reduction was found to be detectable during a localized helium
spill throughout the entire 6.3 km Tevatron tunnel. This prompted us to perform diffusion
tests in air with common gases used at Fermilab. The tests showed that gases, more readily
than expected, diffused through an air column in the direction opposing buoyancy. Test
results for helium and sulfur hexafluoride are presented.
A system of tests were performed to better understand how easily released gases would
fully mix with air and whether they remained fully mixed. The test results have been
applied to a new system at Fermilab for ODH abatement.
Authors:
Keywords:
ODH diffusion of gases in air
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