Computer Science
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984espp.rept.....m&link_type=abstract
Unknown
Computer Science
Cryogenic Fluid Storage, Fluid Flow, Liquid Helium 2, Plugs, Porosity, Superfluidity, Aluminum Oxides, Ceramics, Circuit Diagrams, Infrared Telescopes, Phase Separation (Materials), Stainless Steels, Steady Flow, Thermomechanical Treatment
Scientific paper
Superfluid liquid helium 2 was requested for cooling of such spaceborne instruments as infrared detectors down to absolute zero. A phase separator composes of a crucial part of such cryogenic systems to allow the liquid phase to be separated from the vapor in order to safely contain He2 in containers in the zero-gravity state. Porous-plugs were fabricated and tested to understand the basic flow characteristics through porous-plugs both in the laboratory and in the zero-gravity state aboard a rocket. Results show that the phase separation and the cooling power control were satisfactorily performed in both situations. The fundamental feature of the flow phenomena through porous-plugs is made clear quantitatively as well as qualitatively to provide sufficient data for the practical design of porous-plugs for potential spaceborne IR telescope systems.
Murakami Masaaki
Nakai Hidekazu
Nakaniwa N.
Yuama K.
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