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

C. Kotnig; L. Tavian; G. Brenn

doi:10.1088/1757-899X/278/1/012089

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

C. Kotnig, L. Tavian, G. Brenn

Institute of Fluid Mechanics and Heat Transfer (3210)

Research output: Contribution to journal › Article › peer-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 language	English
Article number	012089
Journal	IOP Conference Series: Materials Science and Engineering
Volume	278
Issue number	1
DOIs	https://doi.org/10.1088/1757-899X/278/1/012089
Publication status	Published - 30 Dec 2017

ASJC Scopus subject areas

General Materials Science
General Engineering

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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.",

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

Abstract

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