Speaker
Philipp Arnold
(European Spallation Source ESS AB)
Description
The European Spallation Source (ESS) is a neutron-scattering facility funded and supported in collaboration with 17 European countries in Lund, Sweden. Cryogenic cooling at ESS is vital particularly for the linear accelerator, the hydrogen target moderators, a test stand for cryomodules and the neutron instrument sample environments. The paper will focus on specific process design criteria, design decisions and their motivations for the cryoplants and auxiliary equipment. Key issues for all plants and their process concept are energy efficiency, reliability, smooth turn-down behavior and flexibility. The accelerator cryoplant (ACCP) and the target moderator cryoplant (TMCP) in particular, need to be prepared for a range of refrigeration capacities due to the intrinsic uncertainties regarding heat load definitions. Furthermore questions regarding process arrangement, 2K cooling methodology, LN2 pre-cooling, helium storage, helium purification and heat recovery will be addressed.
Author
Philipp Arnold
(European Spallation Source ESS AB)
Co-authors
Jaroslaw Fydrych
(European Spallation Source ESS AB)
John Jurns
(European Spallation Source ESS AB)
John WEISEND
(SLAC)
Mr
Wolfgang Hees
(European Spallation Source ESS AB)
xilong wang
(European Spallation Source ESS AB)
