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SNS Central Helium Liquefier spare Carbon Bed installation and commissioning...

by Brian D Degraff, Matthew P Howell, Sang-ho Kim, Thomas S Neustadt
Publication Type
Conference Paper
Journal Name
IOP Conference Series: Materials Science and Engineering
Publication Date
Page Number
Conference Name
Cryogenic Engineering Conference 2017
Conference Location
Madison, Wisconsin, United States of America
Conference Sponsor
University of Wisconsin
Conference Date

The Spallation Neutron Source (SNS) Central Helium Liquefier (CHL) at Oak Ridge National Laboratory (ORNL) has been without major operations downtime since operations were started back in 2006. This system utilizes a vessel filled with activated carbon as the final major component to remove oil vapor from the compressed helium circuit prior to insertion into the system's cryogenic cold box. The need for a spare carbon bed at SNS due to the variability of carbon media lifetime calculation to adsorption efficiency will be discussed. The fabrication, installation and commissioning of this spare carbon vessel will be presented. The novel plan for connecting the spare carbon vessel piping to the existing infrastructure will be presented.