F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
62/77
F25B 39/02 (2006.01) F25D 3/10 (2006.01)
Patent
CA 1056612
ABSTRACT Apparatus for supplying a refrigeration system with a low-temperature liquid cryogen, such as carbon dioxide. High pressure liquid cryogen is supplied to a holding chamber where the pressure is reduced to create vapor and solid cryogen forming a low-temperature coolant reservoir. Vapor is removed from the chamber to maintain the pressure therein at or below the triple point by a compressor and condensed and recovered. The stored cooling power of the reservoir is then employed to meet refrigeration demand and is thereafter replenished over a period of hours. The storage principle can be incorporated into a variety of different systems. For example, additional liquid cryogen, particularly CO2 may be supplied from a separate storage vessel to a refrigeration system wherein vapor is created that is transferred to the holding chamber for condensation by melting the solid cryogen.
287999
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