A refrigeration system and a method for reducing the charge...

Details A refrigeration system and a method for reducing the charge... A refrigeration system and a method for reducing the charge...

F - Mech Eng,Light,Heat,Weapons

25

B

F25B 41/00 (2006.01) F16L 58/04 (2006.01)

Patent

CA 2516746

In a given design of a refrigeration system, the present invention provides a method for reducing the charge of the refrigerant flowing through the refrigeration system. The refrigeration system includes a fluid conduit through which a flammable refrigerant circulates. The fluid conduit couples, in serial order, a compressor, a first heat exchanger, an expansion device, and a second heat exchanger. The conduit defines an interior diameter, an interior surface, and a given friction factor range. The method includes the steps of reducing the interior diameter of the conduit to thereby reduce the system design refrigerant charge, and coating the interior surface of the reduced diameter conduit with a coating composition to thereby reduce the surface roughness of the interior surface and provide a friction factor for the reduced diameter conduit that is substantially within the given friction factor range.

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