Abstract
A resistive transition (quench) of the Large Hadron Collider magnets provokes the expulsion of helium from the magnet cryostats to the helium recovery system. A high-volume, vacuum-insulated recovery line connected to several uninsulated medium-pressure gas storage tanks, forms the main constituents of the system. Besides a dedicated hardware configuration, helium recovery also implies specific procedures that should follow a quench, in order to conserve the discharged helium and possibly make use of its refrigeration capability. The amount of energy transferred after a quench from the magnets to the helium leaving the cold mass has been estimated on the basis of experimental data. Based on these data, the helium thermodynamic state in the recovery system is calculated using a lumped Chapaumeter approach. The LHC magnet quenches are classified in a Chapaumetric way from their cryogenic consequences and procedures that should follow the quench are proposed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
The LHC Study Group, The Large Hadron Collider Conceptual Design, CERN/AC/95–05(LHC).
A. Bézaguet et al., Cryogenic Operation and Testing of the Extended LHC Prototype Magnet String, Proc. ICEC 16/ICMC, Kitakyushu, Japan, May 1996.
L. Brue, Modélisation Thermohydraulique des Ecoulements Transitoires d’Hélium Cryogénique induits dans la Ligne de Récupération du Demi-Octant par les Transitions Résistives des Aimants du LHC, LHC Note 262, CERN AT/94–03 (CR).
M. Chorowski, Transient behaviour and helium recovery in the LHC cryogenic system following magnet resistive transitions, LHC Project note 77, CERN/LHC (1997).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Springer Science+Business Media New York
About this chapter
Cite this chapter
Chorowski, M., Hilbert, B., Serio, L., Tavian, L., Wagner, U., van Weelderen, R. (1998). Helium Recovery in the LHC Cryogenic System Following Magnet Resistive Transitions. In: Kittel, P. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 43. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9047-4_56
Download citation
DOI: https://doi.org/10.1007/978-1-4757-9047-4_56
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-9049-8
Online ISBN: 978-1-4757-9047-4
eBook Packages: Springer Book Archive