Patent ID: 6823684
Filing Date: 2004-11-30
Classification: F24F,F25B,F28D,Y02B

Abstract:
A method for cooling air with a refrigerant system, the method comprising:passing air, which is at a temperature TA1, that is to be cooled over an evaporator that contains a refrigerant that becomes vaporized and that removes heat from the air to produce conditioned air at a temperature TA2, where TA2A1; passing the refrigerant to a compressor where the vaporized refrigerant is compressed; passing the refrigerant to a condenser unit that removes heat from the refrigerant such that between the refrigerant passing the compressor and condenser, substantially all the refrigerant is placed in a liquid state; passing the refrigerant to an expansion device that expands the refrigerant while passing it to the evaporator, which allows for the refrigerant to be vaporized in the evaporator as the air at TA1 is cooled; passing a first heat-sink coolant at a temperature THS1 over a heat-sink coolant cooler to lower the temperature of the heat-sink coolant to a temperature THS2 to form a second heat-sink coolant; and passing the second heat-sink coolant over the condenser to remove heat from the refrigerant in the condenser; and further comprising adjusting the extent of cooling performed by the heat-sink coolant cooler with a controller coupled to the coolant cooler by operating the controller upon instruction from a remote, off-premise location to adjust the extent of cooling performed by the heat-sink coolant cooler.