Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1995-06-06
1997-09-02
Kilner, Christopher
Refrigeration
Storage of solidified or liquified gas
Including cryostat
62 64, F25B 1900
Patent
active
056619804
ABSTRACT:
A dewar assembly has a wall contacting a liquefied gas within the interior of the dewar assembly. The dewar assembly is processed so as to remove the stable gaseous film boiling layer that is normally present between the liquefied gas and the wall. The processing is preferably accomplished by reducing the pressure on the liquefied gas to reduce its temperature and the temperature of the wall, and then returning the pressure over the liquefied gas to ambient to produce a temperature in the liquefied gas which is temporarily greater than that of the wall. The existing gaseous film boiling layer is removed, so that thermal and acoustic variations present in the system due to the presence of the film boiling layer are eliminated, and the liquefied gas attains a more direct contact with the wall.
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Brown Charles D.
Denson-Low Wanda K.
Hughes Missile Systems Company
Kilner Christopher
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