Refrigeration – Processes – Vacuumizing an open outlet chamber
Patent
1984-12-10
1986-10-07
Tanner, Harry
Refrigeration
Processes
Vacuumizing an open outlet chamber
62169, 62268, F25B 1900
Patent
active
046151788
ABSTRACT:
An apparatus and method for vacuum cooling produce and similar foodstuffs includes a vacuum cooling chamber, a vacuum pump, refrigeration equipment and data processing equipment which is provided with various data by the operator, weight and pressure sensors within the cooling chamber and appropriately controls and terminates the operating cycle of the equipment. The method generally includes determining the initial weight and average temperature of the produce, calculating the amount of heat removal necessary to lower the temperature of the produce to a predetermined final temperature, calculating the amount of water to be removed to accomplish the desired heat removal and subjecting such produce to a vacuum to vaporize the quantity of water from such produce, such quantity of water having a heat of vaporization sufficient to achieve the previously calculated heat removal.
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patent: 3145562 (1964-08-01), Hamilton et al.
patent: 3176408 (1965-04-01), Fuentevilla
patent: 3219463 (1965-11-01), Lamb
patent: 4115596 (1978-09-01), Knutrud
patent: 4204408 (1980-05-01), Dawson
Murray David D.
Tanner Harry
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