Electrical heater for very-low pressure helium gas

Testing superconducting magnets for the Large Hadron Collider (LHC) in superfluid helium requires large-capacity refrigeration at 1.8K. At CERN, this is provided by a combination of a cold compressor and a set of warm vacuum pumps capable of handling up to 18g/s at 1 kPa suction pressure. The cold h...

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Detalles Bibliográficos
Autores principales: Benda, V, Sergo, V, Vuillierme, B
Lenguaje:eng
Publicado: 1996
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/304148
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author Benda, V
Sergo, V
Vuillierme, B
author_facet Benda, V
Sergo, V
Vuillierme, B
author_sort Benda, V
collection CERN
description Testing superconducting magnets for the Large Hadron Collider (LHC) in superfluid helium requires large-capacity refrigeration at 1.8K. At CERN, this is provided by a combination of a cold compressor and a set of warm vacuum pumps capable of handling up to 18g/s at 1 kPa suction pressure. The cold helium vapour, after the cold compressor, is warmed up from about 5K to ambient temperature in a 32 kW electrical heater. The device is designed to operate reliably at flow rates varying from 1 to 18g/s, inlet pressure of 1 kPa to 3 kPa, with pressure drop 100 Pa. Design and construction of the heater, completely realised at CERN, are presented, as well as measured performance. Some technological problems are discussed.
id cern-304148
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-3041482023-05-31T13:22:46Zhttp://cds.cern.ch/record/304148engBenda, VSergo, VVuillierme, BElectrical heater for very-low pressure helium gasAccelerators and Storage RingsTesting superconducting magnets for the Large Hadron Collider (LHC) in superfluid helium requires large-capacity refrigeration at 1.8K. At CERN, this is provided by a combination of a cold compressor and a set of warm vacuum pumps capable of handling up to 18g/s at 1 kPa suction pressure. The cold helium vapour, after the cold compressor, is warmed up from about 5K to ambient temperature in a 32 kW electrical heater. The device is designed to operate reliably at flow rates varying from 1 to 18g/s, inlet pressure of 1 kPa to 3 kPa, with pressure drop 100 Pa. Design and construction of the heater, completely realised at CERN, are presented, as well as measured performance. Some technological problems are discussed.LHC-Project-Report-7CERN-LHC-Project-Report-7oai:cds.cern.ch:3041481996-05-08
spellingShingle Accelerators and Storage Rings
Benda, V
Sergo, V
Vuillierme, B
Electrical heater for very-low pressure helium gas
title Electrical heater for very-low pressure helium gas
title_full Electrical heater for very-low pressure helium gas
title_fullStr Electrical heater for very-low pressure helium gas
title_full_unstemmed Electrical heater for very-low pressure helium gas
title_short Electrical heater for very-low pressure helium gas
title_sort electrical heater for very-low pressure helium gas
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/304148
work_keys_str_mv AT bendav electricalheaterforverylowpressureheliumgas
AT sergov electricalheaterforverylowpressureheliumgas
AT vuilliermeb electricalheaterforverylowpressureheliumgas

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