Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1993-11-04
1995-03-07
Kilner, Christopher
Refrigeration
Storage of solidified or liquified gas
Including cryostat
62 502, 62 504, 62122, 62159, F25B 1900, F17C 902
Patent
active
053947045
ABSTRACT:
A single-pass method for accurate and precise temperature control in the -160.degree. to +90.degree. C. range, and which exhibited minimal set-point overshoot during temperature transitions. Control to .+-.2.degree. C. with transitions between set-points of 7.degree. C. per minute were achieved. The method uses commercially available temperature controllers and a gaseous nitrogen/liquid nitrogen mixer to dampen the amplitude of cold temperature spikes caused by liquid nitrogen pulsing.
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Jones Thomas H.
Kilner Christopher
Kusmiss John H.
Miller Guy M.
The United States of America as represented by the Administrator
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