Mechanized Tunnel Freezer – Chilled Air

Industry: Fruit and Vegetables (NAICS 3114) Meat (NAICS 3116)

NAICS process:

311411 Frozen Fruit and Vegetables

311412 Frozen Specialties

311611 Animal Slaughtering

311612 Meat Processed from Carcasses

311615 Poultry

 

Process Brief: Products are frozen by moving them through a chilled chamber in a continuous process

 

Energy source: Electricity/ some Natural Gas

 

Energy Intensity: 250-1,700 Btu/lb of product

 

A mechanized tunnel freezer is an extension of the stationary tunnel freezer operating in a continuous process. Instead of a simple refrigerated room, the mechanized tunnel freezer is customized to handle one time of material handling device. In some cases, the product will be moved on wheeled pallets; and, in others, there may be a conveyor that moves product through the freezer. In either case, the mechanized tunnel freezer is characterized by automated material handling.

 

The mechanized tunnel freezer use air-blast chilling techniques and mechanical (electricity) or thermal (natural gas) systems generate the cold air.

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