Zero-g Experiments with a He II Active Phase Separator for Space Application
The Active Phase Separator (APS), which has previously been described in detail 1,2 is a system comprising an annular gap (width d < 10 µm) of variable length, a downstream heat exchanger and an upstream ball closure (Fig.1). It is intended for temperature control in He II space cooling systems and must provide effective liquid/ gas separation, which means that it must under all circumstances prevent liquid coolant from reaching warm parts of the vent line behind the heat exchanger. In addition to the laboratory tests 1,2 these functions of the APS also had to be verified in a zero-g environment .
KeywordsHeat Exchanger Mass Flow Rate Heat Load Ball Closure Annular Flow
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- 1.H.D. Dentier, G. Klipping et al., in “Adv. Cryog. Engng., Vol.27”, Plenum Press, New York (1982), p. 1079.Google Scholar
- 2.H.D. Dernier, G. Klipping et al. in “Proceedings ICEC 8”, IPC Science and Technology Press, Guildford (1980), p. 32.Google Scholar
- 3.H.D. Denner, G. Klipping et al. in “Proceedings ICEC 9”, Butterworth & Co., Guildford (1982), p. 186.Google Scholar
- 4.D. Lemke, G. Klipping, M. Grewing, P.R. Preussner, W. Martin, H. Trinks, S. Drapatz, R. Hofmann, G. Hartmann, K. Proetel in “Proceed. Optical and infrared telescopes for the 1990s”, A. Hewlitt (Ed.), Kitt Peak Nat. Observât., Tucson, Ariz., May 1980, Vol. 1, p. 211.Google Scholar
- 5.P. Mason, D. Collins et al. in “Proceedings ICEC 7”, IPC Science and Technology Press, Guildford (1978), p. 99.Google Scholar