Energy efficient insulation system for refrigerator/freezer

Details Energy efficient insulation system for refrigerator/freezer Energy efficient insulation system for refrigerator/freezer

F - Mech Eng,Light,Heat,Weapons

25

D

F25D 23/06 (2006.01) F25B 5/02 (2006.01) F25D 11/00 (2006.01) F25D 11/02 (2006.01)

Patent

CA 2103978

A refrigeration appliance having at least two refrigeration compartments, each compartment having its own access door, is provided wherein there is a first evaporator for the first compartment, the first evaporator operating at a first pressure level and a second evaporator for the second compartment, the second evaporator operating at a pressure level higher than the first pressure level. There is a control device for directing refrigerant to a selected one of the evaporators from a condenser and for preventing a flow of refrigerant into the first evaporator when refrigerant is being directed into the second evaporator to cool the second compartment. Around the first compartment is placed insulation having a higher thermal resistance than that placed around the second compartment since the first compartment is kept at a lower temperature that the second compartment. A phase change material may be used in association with one or both of the evaporators.

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