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Quick Cooling and Filling Through a Single Port for Cryogenic Transfer OperationsImproved 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.
Document ID
20020002697
Acquisition Source
Kennedy Space Center
Document Type
Preprint (Draft being sent to journal)
Authors
Jones, J. R. (NASA Kennedy Space Center Cocoa Beach, FL United States)
Fesmire, James E. (NASA Kennedy Space Center Cocoa Beach, FL United States)
MacDowell, L. G.
Date Acquired
September 7, 2013
Publication Date
January 1, 2001
Subject Category
Engineering (General)
Meeting Information
Meeting: Joint CEC and ICMC
Location: Madison, WI
Country: United States
Start Date: July 16, 2001
End Date: July 20, 2001
Funding Number(s)
CONTRACT_GRANT: NAS10-98001
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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