Calculation of the pressure rise in the cooling tube of a two-phase cooling system during a quench of an indirectly cooled superconducting magnet

Author

Green, M.A.

Author_Institution

Lawrence Berkeley Lab., CA, USA

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2427

Lastpage

2430

Abstract

Large superconducting detector magnets are indirectly cooled with two-phase helium flowing in cooling tubes attached to the coil or its support structure. Large detector magnets often quench such that most of the magnet stored energy ends up as heat stored in the coil package. The time constant for energy deposition in the coil and support structure is often quite short. This paper presents a method for calculating the peak pressure rise in the magnet two-phase cooling tube during a magnet quench. A comparison of calculated peak pressure rise and measured pressure rise for the PEP-4 solenoid is presented in this report

Keywords

beam handling equipment; electron accelerators; low-temperature techniques; storage rings; superconducting magnets; PEP-4 solenoid; coil package; cooling tube; energy deposition; heat storage; indirectly cooled superconducting magnet quench; magnet stored energy; magnet two-phase cooling tube; peak pressure rise; pressure rise; superconducting detector magnets; time constant; two-phase He flow; two-phase cooling system; Cooling; Detectors; Helium; Magnetic circuits; Packaging; Refrigeration; Superconducting coils; Superconducting magnets; Temperature control; Valves;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305767

Filename

305767