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Superfluid plug as a control device for helium coolantNew results are obtained on the characteristics of a superfluid plug as a nonmechanical control device for supplying cold helium vapor on demand from a superfluid-helium container. The data reported are for an Al2O3 ceramic plug having a nominal 5-micron pore size. A theoretical background and steady-state data are presented on mass flow rates and pressures as a function of liquid temperature. It is demonstrated that the superfluid plug can be employed as a flow control device in a control system designed to provide coolant on demand.
Document ID
19800048179
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Karr, G. R.
(Alabama, University Huntsville, Ala., United States)
Urban, E. W.
(NASA Marshall Space Flight Center Huntsville, Ala., United States)
Date Acquired
August 10, 2013
Publication Date
May 1, 1980
Subject Category
Engineering (General)
Accession Number
80A32349
Distribution Limits
Public
Copyright
Other

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