Share
IIR document
Monte Carlo simulation of molecular flow and radiative heat transfer in helium bath cryopump.
Author(s) : MUSILOVÁ V., HANZELKA P., SRNKA A.
Summary
Two versions of small helium bath cryopump with different baffle structures, molecular flow and thermal radiation heat transfer were simulated by the Monte Carlo method. The pumping speeds were assessed and compared with a prediction made using published transmissivities of the louver and chevron baffles. Supposing diffusive reflections of heat radiation, heat loads of individual shields were evaluated and found satisfactorily low from the cryogenic point of view in both versions of the pump. The qualitative simulations of the influence of mirror reflections on heat transfer indicated a significant increase in all heat loads in the pump with the louver and chevron baffles.
Available documents
Format PDF
Pages: 2002-1
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Monte Carlo simulation of molecular flow and radiative heat transfer in helium bath cryopump.
- Record ID : 2003-2673
- Languages: English
- Source: Cryogenics 2002. Proceedings of the 7th Cryogenics Conference
- Publication date: 2002/04/23
Links
See other articles from the proceedings (36)
See the conference proceedings
Indexing
-
Two-phase liquid helium flow testing to simulat...
- Author(s) : LAUGHON G. J., BAXI C. B., CAMPBELL G. L., MAHDAVI M. A., MAKARIOU C. C., MENON M. M., SMITH J. P., SCHAFFER M. J., SCAUBEL K. M.
- Date : 1994/06/07
- Languages : English
- Source: Proceedings of the 15th international cryogenic engineering conference. ICEC 15.
View record
-
The pumping performance of liquid helium cryoco...
- Author(s) : HU C. D., XIE Y., OUYANG Z. G.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
View record
-
Auslegung von Kalten Zirkulationspumpen und Kom...
- Author(s) : BISCHOFF S.
- Date : 2006/11/22
- Languages : German
- Source: DKV-Tagungsbericht 2006, Dresden.
View record
-
STUDY OF DEWAR MULTI-SHIELD INSULATION SYSTEMS ...
- Author(s) : POPOV O. M., VELIKANOVA M. G., MILMAN S. B.
- Date : 1991/08/10
- Languages : English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Formats : PDF
View record
-
ECONOMIC USE OF LIQUID NITROGEN AND LIQUID HELI...
- Author(s) : KLIPPING G., KLIPPING I.
- Date : 1986/09/17
- Languages : English
View record