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Freezer |
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freezer
a device that freezes or chills, esp an insulated cold-storage cabinet for long-term storage of perishable foodstuffs freezer [′frēz·ər] (mechanical engineering) An insulated unit, compartment, or room in which perishable foods are quick-frozen and stored. freezer A mechanically refrigerated room or cabinet for the storage of frozen foods; usually maintained at a temperature of about 10°F (approx. –12°C). Freezer a device for agitating (in order to saturate with air) and freezing a mixture of intermediate products in the production of ice cream. The principal part of a freezer is a cylinder with a refrigeration sleeve incorporating a beating mechanism in the form of a rapidly rotating stirrer with blades. The sleeve is supplied with a refrigerant consisting of a calcium chloride solution, ammonia, or freon, which cools the mixture to a temperature of – 7°C. The layer of ice that forms on the surface of the cylinder is sheared off and broken up by the blades. The beating increases the volume of the mixture by a factor of 1.5–2. Both batch-processing and continuous freezers are manufactured. Batch freezers beat and freeze mixtures of 20–40 kg in 5–10 min. Continuous freezers have a productivity of 500–5,000 kg per hour. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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