Refrigeration – Automatic control – Preventing – removing or handling atmospheric condensate
Patent
1992-07-13
1993-08-31
Tanner, Harry B.
Refrigeration
Automatic control
Preventing, removing or handling atmospheric condensate
62180, 62203, 236 493, 165 54, 165 16, F25D 1700
Patent
active
052398340
ABSTRACT:
The invention pertains to an auxiliary outside air refrigeration system for use in combination with a conventional refrigeration system to supply refrigeration to an enclosure whereby cold outside air is used as the cooling medium. A differential thermostatic controller monitors the temperature inside the enclosure and in the outside atmosphere and, if the temperature inside the enclosure indicated the need for refrigeration, activates the fans of the auxiliary outside air system whenever the temperature differential between inside and outside indicates adequate potential for refrigeration. The conventional refrigeration system is energized only when the more energy-efficient outside air refrigeration system is not able to maintain adequate refrigeration within the enclosure. The controller can be used for an auxiliary outside air refrigeration system using direct exchange of air between the enclosure and the outside atmosphere or one using an air-to air heat exchanger.
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Article in Energy Management Matters, "Cut Refrigeration Costs!", Central Maine Power Company; Augusta, Me.; Winter '89.
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