Refrigeration – Processes – Treating an article
Patent
1976-11-01
1978-11-28
Capossela, Ronald C.
Refrigeration
Processes
Treating an article
62 46, 62165, 62332, 62514R, F25D 2500, F25D 312
Patent
active
041270088
ABSTRACT:
Apparatus for supplying a refrigeration system with a low-temperature liquid CO.sub.2. High pressure liquid CO.sub.2 is supplied from a storage vessel system to a holding chamber where the pressure is reduced to create vapor and CO.sub.2 snow, forming a low-temperature coolant reservoir. Vapor is removed from the chamber to maintain the pressure therein at about 75 p.s.i.a. or below by a compressor and returned to the storage vessel. 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 CO.sub.2 may be supplied from the storage vessel to a refrigeration system wherein vapor is created that is transferred to the holding chamber for condensation by melting the snow.
REFERENCES:
patent: 3754407 (1973-08-01), Tyree, Jr.
patent: 3802212 (1974-04-01), Martin et al.
patent: 3810365 (1974-05-01), Hampton et al.
patent: 3984993 (1976-10-01), Muska
patent: 3994141 (1976-11-01), Schrawer
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