A cryogenic axial-centrifugal compressor for superfluid helium refrigeration

CERN's new project, the Large Hadron Collider (LHC), will use superfluid helium as coolant for its high-field superconducting magnets and therefore require large capacity refrigeration at 1.8 K. This may only be achieved by subatmospheric compression of gaseous helium at cryogenic temperature....

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Detalles Bibliográficos
Autores principales: Decker, L, Löhlein, K, Schustr, P, Vins, M, Brunovsky, I, Lebrun, P, Tavian, L
Lenguaje:eng
Publicado: 1996
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/308239
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author Decker, L
Löhlein, K
Schustr, P
Vins, M
Brunovsky, I
Lebrun, P
Tavian, L
author_facet Decker, L
Löhlein, K
Schustr, P
Vins, M
Brunovsky, I
Lebrun, P
Tavian, L
author_sort Decker, L
collection CERN
description CERN's new project, the Large Hadron Collider (LHC), will use superfluid helium as coolant for its high-field superconducting magnets and therefore require large capacity refrigeration at 1.8 K. This may only be achieved by subatmospheric compression of gaseous helium at cryogenic temperature. To stimulate development of this technology, CERN has procured from industry prototype Cold Compressor Units (CCU). This unit is based on a cryogenic axial-centrifugal compressor, running on ceramic ball bearings and driven by a variable-frequency electrical motor operating under low-pressure helium at ambient temperature. The machine has been commissioned and is now in operation. After describing basic constructional features of the compressor, we report on measured performance.
id cern-308239
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-3082392023-05-31T13:22:45Zhttp://cds.cern.ch/record/308239engDecker, LLöhlein, KSchustr, PVins, MBrunovsky, ILebrun, PTavian, LA cryogenic axial-centrifugal compressor for superfluid helium refrigerationAccelerators and Storage RingsCERN's new project, the Large Hadron Collider (LHC), will use superfluid helium as coolant for its high-field superconducting magnets and therefore require large capacity refrigeration at 1.8 K. This may only be achieved by subatmospheric compression of gaseous helium at cryogenic temperature. To stimulate development of this technology, CERN has procured from industry prototype Cold Compressor Units (CCU). This unit is based on a cryogenic axial-centrifugal compressor, running on ceramic ball bearings and driven by a variable-frequency electrical motor operating under low-pressure helium at ambient temperature. The machine has been commissioned and is now in operation. After describing basic constructional features of the compressor, we report on measured performance.LHC-Project-Report-22CERN-LHC-Project-Report-22oai:cds.cern.ch:3082391996-05-17
spellingShingle Accelerators and Storage Rings
Decker, L
Löhlein, K
Schustr, P
Vins, M
Brunovsky, I
Lebrun, P
Tavian, L
A cryogenic axial-centrifugal compressor for superfluid helium refrigeration
title A cryogenic axial-centrifugal compressor for superfluid helium refrigeration
title_full A cryogenic axial-centrifugal compressor for superfluid helium refrigeration
title_fullStr A cryogenic axial-centrifugal compressor for superfluid helium refrigeration
title_full_unstemmed A cryogenic axial-centrifugal compressor for superfluid helium refrigeration
title_short A cryogenic axial-centrifugal compressor for superfluid helium refrigeration
title_sort cryogenic axial-centrifugal compressor for superfluid helium refrigeration
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/308239
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