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Dynamic simulation of a helium liquefier.
Author(s) : KUTZSCHBACH A., HABERSTROH C., QUACK H.
Summary
A commercial helium liquefier has been investigated. Whereas for the steady state design only component efficiencies are needed and mass and energy balances have to be calculated, for the dynamic calculation one needs also the thermal masses and the helium inventory. Transient mass and energy balances have to be formulated for many small elements and then solved simultaneously for all elements. Possible starting points for the simulation of the liquefier cycle are the stand still or the steady state operation at design conditions. The responses of the system to cool down or step and cyclic changes of the refrigeration or liquefaction rate are calculated and characterized.
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Pages: 2006-3/ICEC I-A4
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Details
- Original title: Dynamic simulation of a helium liquefier.
- Record ID : 2008-0475
- Languages: English
- Source: Multiconference CryoPrague 2006 (9th Cryogenics 2006, ICEC 21, ICMC'06)
- Publication date: 2006/07/17
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Indexing
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Cryogenic helium units simulation model.
- Author(s) : BUTKEVICH I., RIDNIC E., SHPAKOV V.
- Date : 2006/07/17
- Languages : English
- Source: Multiconference CryoPrague 2006 (9th Cryogenics 2006, ICEC 21, ICMC'06)
- Formats : PDF
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State of the art of helium liquefaction and ref...
- Author(s) : WILHELM H., LOEHLEIN K., UNGRICHT T.
- Date : 2006/07/17
- Languages : English
- Source: Multiconference CryoPrague 2006 (9th Cryogenics 2006, ICEC 21, ICMC'06)
- Formats : PDF
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Mathematical modelling of the thermodynamic par...
- Author(s) : GHERGHINESCU S.
- Date : 2006/07/17
- Languages : English
- Source: Multiconference CryoPrague 2006 (9th Cryogenics 2006, ICEC 21, ICMC'06)
- Formats : PDF
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Large scale helium extraction from natural gas ...
- Author(s) : BRÄUTIGAM M., CLAUSEN J.
- Date : 2002/07/22
- Languages : English
- Source: Proceedings of the nineteenth International Cryogenic Engineering Conference. ICEC 19.
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Improvements of helium liquefaction/refrigerati...
- Author(s) : MUEHLEGGER M., BERDAIS K. H., WILHELM H., et al.
- Date : 2008/04/21
- Languages : English
- Source: Cryogenics 2008. Proceedings of the 10th IIR International Conference
- Formats : PDF
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