Use of r-1233 in liquid chillers
AssigneeArkema Inc.
InventorsBrett L. VAN HORN, Philippe BONNET
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Abstract
This invention relates to the use of chloro-trifluoropropenes as refrigerants in negative-pressure liquid chillers and methods of replacing an existing refrigerant in a chiller with chloro-trifluoropropenes. The chloro-trifluoropropenes, particularly 1-chloro-3,3,3-trifluoropropene, have high efficiency and unexpectedly high capacity in liquid chiller applications and are useful as more environmentally sustainable refrigerants for such applications, including the replacement of R-123 and R-11.
Claims20
A method of charging a chiller system of the type containing a high global warming potential refrigerant and a lubricant comprising the step of replacing all or part of said high global warming potential refrigerant in said refrigeration system with a halogenated olefin composition comprising 1-chloro-3,3,3-trifluoropropene and/or 2-chloro-3,3,3-trifluoropropene while leaving a substantial portion of said lubricant in said system.
Dependencies are inferred from the claim text.