Refrigerated produce transport

Details Refrigerated produce transport Refrigerated produce transport

1983-03-21

1984-06-19

Capossela, Ronald C.

Refrigeration

Processes

Treating an article

62 78, 62 91, 62239, 62373, 426524, F25D 1702

Patent

active

044547234

ABSTRACT:
Fresh produce is loaded into an enclosed trailer, and the doors closed. Chilled water is pumped through overhead sprinkler pipes to chill the product to about 35 degrees Fahrenheit. Liquid nitrogen is used to maintain the trailer cold during transit and storage. Nitrogen tanks within the trailer are filled during the water chill operation. The nitrogen tanks are bled during the filling operation and the bled nitrogen extends through expansion tubes which are located co-axially within the water sprinkler tubes in the ceiling. From there the nitrogen is fed through exhaust pipes along the floor of the transport to purge the product of atmosphere and respiration gases. During transport, the liquid nitrogen is fed into the overhead expansion tubes for refrigeration and again the evaporated nitrogen is fed to the exhaust pipes along the floor to purge the product of respiration gases and to maintain the product oxygen-free.

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