Helium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic Failure

The Large Hadron Collider (LHC), presently under construction at CERN, will contain about 100 tonnes of helium, mostly located in the underground tunnel and caverns [1]. Potential failure modes of the accelerator, which may be followed by helium discharge to the tunnel, have been identified and the...

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Detalles Bibliográficos
Autores principales: Chorowski, M, Konopka, G, Riddone, G
Lenguaje:eng
Publicado: 2000
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/449265
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author Chorowski, M
Konopka, G
Riddone, G
author_facet Chorowski, M
Konopka, G
Riddone, G
author_sort Chorowski, M
collection CERN
description The Large Hadron Collider (LHC), presently under construction at CERN, will contain about 100 tonnes of helium, mostly located in the underground tunnel and caverns [1]. Potential failure modes of the accelerator, which may be followed by helium discharge to the tunnel, have been identified and the corresponding helium flows calculated. The paper presents the analysis of the helium discharge in the worst case of conditions, as well as the corresponding helium dispersion along the tunnel. The variation of oxygen concentration has been calculated and the oxygen deficiency hazard (ODH) analysed. The preventive means of protection, namely location and sizing of safety valves are also discussed.
id cern-449265
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2000
record_format invenio
spelling cern-4492652023-05-31T13:22:04Zhttp://cds.cern.ch/record/449265engChorowski, MKonopka, GRiddone, GHelium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic FailureAccelerators and Storage RingsThe Large Hadron Collider (LHC), presently under construction at CERN, will contain about 100 tonnes of helium, mostly located in the underground tunnel and caverns [1]. Potential failure modes of the accelerator, which may be followed by helium discharge to the tunnel, have been identified and the corresponding helium flows calculated. The paper presents the analysis of the helium discharge in the worst case of conditions, as well as the corresponding helium dispersion along the tunnel. The variation of oxygen concentration has been calculated and the oxygen deficiency hazard (ODH) analysed. The preventive means of protection, namely location and sizing of safety valves are also discussed.LHC-Project-Report-381CERN-LHC-Project-Report-381oai:cds.cern.ch:4492652000-07-26
spellingShingle Accelerators and Storage Rings
Chorowski, M
Konopka, G
Riddone, G
Helium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic Failure
title Helium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic Failure
title_full Helium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic Failure
title_fullStr Helium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic Failure
title_full_unstemmed Helium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic Failure
title_short Helium Discharge and Dispersion In the LHC Accelerator Tunnel in Case of Cryogenic Failure
title_sort helium discharge and dispersion in the lhc accelerator tunnel in case of cryogenic failure
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/449265
work_keys_str_mv AT chorowskim heliumdischargeanddispersioninthelhcacceleratortunnelincaseofcryogenicfailure
AT konopkag heliumdischargeanddispersioninthelhcacceleratortunnelincaseofcryogenicfailure
AT riddoneg heliumdischargeanddispersioninthelhcacceleratortunnelincaseofcryogenicfailure

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