Low-maintenance system for maintaining a cargo in a refrigerated

Details Low-maintenance system for maintaining a cargo in a refrigerated Low-maintenance system for maintaining a cargo in a refrigerated

1994-03-23

1995-06-13

Capossela, Ronald C.

Refrigeration

Cooler utilizing solidified gas

62239, F25D 312

Patent

active

054231930

ABSTRACT:
A system for maintaining a cargo in a refrigerated condition over an extended duration employs an insulated enclosure having both a cargo-enclosing portion and a carbon dioxide-enclosing portion separated by an insulated barrier. A finite amount of solid carbon dioxide is placed in the carbon dioxide-enclosing portion at the beginning of the duration. By properly insulating the barrier to provide a rate of heat transfer within a predetermined range, the cargo is maintained in a refrigerated condition without replenishing the solid carbondioxide for uniquely lengthy durations. Such durations are especially maximized by employing such enclosures in the form of cargo-carrying containers of generally rectangular shape stackable vertically atop one another and/or in close side-by-side relation to one another.

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American Frozen Food Institute, "Cryogenic Railcar Project, Executive Summary Report," Mar. 1985.

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