Adaption of the LHC cold mass cooling system to the requirements of the Future Circular Collider (FCC)

C. Kotnig, L. Tavian, G. Brenn

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The cooling of the superconducting magnet cold masses with superfluid helium (He II) is a well-established concept successfully in operation for years in the LHC. Consequently, its application for the cooling of FCC magnets is an obvious option. The 12-kW heat loads distributed over 10-km long sectors not only require an adaption of the magnet bayonet heat exchangers but also present new challenges to the cryogenic plants, the distribution system and the control strategy. This paper recalls the basic LHC cooling concept with superfluid helium and defines the main parameters for the adaption to the FCC requirements. Pressure drop and hydrostatic head are developed in the distribution and pumping systems; their impact on the magnet temperature profile and the corresponding cooling efficiency is presented and compared for different distribution and pumping schemes.

Original languageEnglish
Article number012089
JournalIOP Conference Series / Materials Science and Engineering
Volume278
Issue number1
DOIs
Publication statusPublished - 30 Dec 2017

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Colliding beam accelerators
Cooling systems
Cooling
Superfluid helium
Magnets
Superconducting magnets
Thermal load
Cryogenics
Pressure drop
Heat exchangers
Temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

Adaption of the LHC cold mass cooling system to the requirements of the Future Circular Collider (FCC). / Kotnig, C.; Tavian, L.; Brenn, G.

In: IOP Conference Series / Materials Science and Engineering, Vol. 278, No. 1, 012089, 30.12.2017.

Research output: Contribution to journalArticleResearchpeer-review

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