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Comparison of floating and thermalized multilayer insulation systems at low boundary temperature

The Large Hadron Collider (LHC) is 26.7 km circumference particle collider using high-field superconducting magnets operating in superfluid helium. An efficient and robust thermal insulation system is therefore required to minimize the residual heat in leak to the large surface area at 1.9 K constit...

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Detalles Bibliográficos
Autores principales: Ferlin, G, Jenninger, B, Lebrun, P, Peón-Hernández, G, Riddone, G, Szeless, Balázs
Lenguaje:eng
Publicado: 1996
Materias:
Acceso en línea:https://dx.doi.org/10.1016/B978-008042688-4/50103-4
http://cds.cern.ch/record/310032
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author Ferlin, G
Jenninger, B
Lebrun, P
Peón-Hernández, G
Riddone, G
Szeless, Balázs
author_facet Ferlin, G
Jenninger, B
Lebrun, P
Peón-Hernández, G
Riddone, G
Szeless, Balázs
author_sort Ferlin, G
collection CERN
description The Large Hadron Collider (LHC) is 26.7 km circumference particle collider using high-field superconducting magnets operating in superfluid helium. An efficient and robust thermal insulation system is therefore required to minimize the residual heat in leak to the large surface area at 1.9 K constituted by the stainless steel wall of the helium enclosure. The baseline solution uses "floating" multilayer reflective insulation. Moreover, an alternative consists of a combination of multilayer reflective films and a soft screen, partially thermalized to the 5 K level and supported away from the cold wall by net-type insulating spacers. This chapter establishes the improvement potential of the alternative over the baseline solution, and compares their insulation performance on the basis of measured characteristics of thermal contacts and spacers.
id cern-310032
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-3100322023-05-31T13:21:45Zdoi:10.1016/B978-008042688-4/50103-4http://cds.cern.ch/record/310032engFerlin, GJenninger, BLebrun, PPeón-Hernández, GRiddone, GSzeless, BalázsComparison of floating and thermalized multilayer insulation systems at low boundary temperatureAccelerators and Storage RingsThe Large Hadron Collider (LHC) is 26.7 km circumference particle collider using high-field superconducting magnets operating in superfluid helium. An efficient and robust thermal insulation system is therefore required to minimize the residual heat in leak to the large surface area at 1.9 K constituted by the stainless steel wall of the helium enclosure. The baseline solution uses "floating" multilayer reflective insulation. Moreover, an alternative consists of a combination of multilayer reflective films and a soft screen, partially thermalized to the 5 K level and supported away from the cold wall by net-type insulating spacers. This chapter establishes the improvement potential of the alternative over the baseline solution, and compares their insulation performance on the basis of measured characteristics of thermal contacts and spacers.LHC-Project-Report-21CERN-LHC-Project-Report-21oai:cds.cern.ch:3100321996-07-17
spellingShingle Accelerators and Storage Rings
Ferlin, G
Jenninger, B
Lebrun, P
Peón-Hernández, G
Riddone, G
Szeless, Balázs
Comparison of floating and thermalized multilayer insulation systems at low boundary temperature
title Comparison of floating and thermalized multilayer insulation systems at low boundary temperature
title_full Comparison of floating and thermalized multilayer insulation systems at low boundary temperature
title_fullStr Comparison of floating and thermalized multilayer insulation systems at low boundary temperature
title_full_unstemmed Comparison of floating and thermalized multilayer insulation systems at low boundary temperature
title_short Comparison of floating and thermalized multilayer insulation systems at low boundary temperature
title_sort comparison of floating and thermalized multilayer insulation systems at low boundary temperature
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1016/B978-008042688-4/50103-4
http://cds.cern.ch/record/310032
work_keys_str_mv AT ferling comparisonoffloatingandthermalizedmultilayerinsulationsystemsatlowboundarytemperature
AT jenningerb comparisonoffloatingandthermalizedmultilayerinsulationsystemsatlowboundarytemperature
AT lebrunp comparisonoffloatingandthermalizedmultilayerinsulationsystemsatlowboundarytemperature
AT peonhernandezg comparisonoffloatingandthermalizedmultilayerinsulationsystemsatlowboundarytemperature
AT riddoneg comparisonoffloatingandthermalizedmultilayerinsulationsystemsatlowboundarytemperature
AT szelessbalazs comparisonoffloatingandthermalizedmultilayerinsulationsystemsatlowboundarytemperature