Method and apparatus for control of carbon dioxide gas...

Details Method and apparatus for control of carbon dioxide gas... Method and apparatus for control of carbon dioxide gas...

F - Mech Eng,Light,Heat,Weapons

25

B

F25B 41/00 (2006.01) F25B 1/10 (2006.01) F25B 31/00 (2006.01)

Patent

CA 2523821

A transcritical vapor compression system includes a fluid circuit circulating a refrigerant in a closed loop. The fluid circuit has operably disposed therein, in serial order, a first compressor, an intercooler, a second compressor with a variable capacity, a first heat exchanger, an expansion device and a second heat exchanger. The first compressor compresses the refrigerant from a low pressure to an intermediate pressure. The second compressor compresses the refrigerant from the intermediate pressure to a supercritical pressure. The first heat exchanger is positioned in a high pressure side of the fluid circuit. The second heat exchanger is positioned in a low pressure side of the fluid circuit. The expansion device reduces the pressure of the refrigerant from a supercritical pressure to a relatively lower pressure. Cooling means cools the refrigerant within one of the compressors.

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