Quick cooling and filling through a single port for cryogenic transfer operations

Details Quick cooling and filling through a single port for cryogenic transfer operations Quick cooling and filling through a single port for cryogenic transfer operations

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..613.1445j&link_type=abstract

ADVANCES IN CRYOGENIC ENGINEERING: Proceedings of the Cryogenic Engineering Conference - CEC. AIP Conference Proceedings, Volum

Other

Spaceborne And Space Research Instruments, Apparatus, And Components, Cryogenics, Refrigerators, Low-Temperature Detectors, And Other Low-Temperature Equipment

Scientific paper

Improved technology for the efficient transfer of cryogens is needed for future on-orbit fueling and remote Lunar/Mars operations. The cooling and filling of a liquid nitrogen (LN2) test vessel through a single port were investigated in a series of experiments. A new ``in-space'' transfer tube design concept was used to demonstrate the ability to quickly cool and load cryogens through a single feed-through connection. Three different fill tube configurations with three different diameters were tested. The tubes providing the quickest cooldown time and the quickest fill time for the test article tank were determined. The results demonstrated a clear trade-off between cooling time and filling time for the optimum tube design. This experimental study is intended to improve technology for future flight tank designs by reducing fill system size, complexity, heat leak rate, and operations time. These results may be applied to Space Shuttle Power Reactant Storage and Distribution (PRSD) System upgrades and other future applications. Further study and experimental analysis for optimization of the fill tube design are in progress. .

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