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 .
KeywordsHelium Flange Clarification
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