Speaker
Mr
Can Üresin
(Linde Kryotechnik AG)
Description
In 2011, Linde Cryogenics, a division of Linde Process Plants, Tulsa, Oklahoma, was awarded the contract to deliver a 500 W at 2K superfluid cryogenic plant to Fermi National Accelerator Laboratory (FNAL) in Batavia, Illinois, USA. This system includes a cold compressor string with 3 centrifugal compressors and a vacuum pump skid with 5 volumetric pumps in parallel used to pump down helium to its saturation pressure corresponding to 2K. Linde Kryotechnik AG, Pfungen Switzerland engineered and supplied the cold compressor system and commissioned it with its control logic to cover the complete range of system operation.
The presentation will outline the pump-down and steady state performance of the system. It will also cover issues regarding compressor design, compressor string modelling, control algorithms, controller performance, and surge protection.
Author
Mr
Can Üresin
(Linde Kryotechnik AG)
Co-authors
Mr
Lutz Decker
(Linde Kryotechnik AG)
Mr
Philipp Treite
(Linde Kryotechnik AG)
