Trans-chloro-3,3,3-trifluoropropene for use in chiller applications

Abstract

The present invention relates to refrigerant compositions containing trans-chloro-3,3,3-trifluoropropene (1233zd(E)) useful for chiller applications and processes using 1233zd(E).

We claim: 
     
         1 . A method for producing refrigeration comprising compressing a refrigerant composition comprising 1233zd(E), wherein said compressing occurs within a centrifugal chiller system. 
     
     
         2 . The method of  claim 1  wherein said compressing is performed in multiple stages. 
     
     
         3 . The method of  claim 2  wherein the compressing step comprises from about two to about five stages of compression. 
     
     
         4 . The method of  claim 1  wherein the COP is between 4.7 and 4.96. 
     
     
         5 . The method of  claim 1  wherein the refrigerant composition comprises at least 50 wt % 1233zd(E) based on total weight of the composition. 
     
     
         6 . The method of  claim 1  wherein the refrigerant composition comprises at least 70 wt % 1233zd(E) based on total weight of the composition. 
     
     
         7 . The method of  claim 1  wherein said refrigerant composition comprises a hydrofluoroolefin consisting essentially of 1233zd, wherein a majority of said 1233zd is 1233zd(E). 
     
     
         8 . The method of  claim 7  wherein said 1233zd consists of 1233zd(E) and 1233zd(Z) in a ratio of about 2:1 to about 99:1. 
     
     
         9 . The method of  claim 8  wherein said ratio is about 4:1 to about 19:1. 
     
     
         10 . A method for producing refrigeration comprising compressing a refrigerant comprising at least 50 wt % of 1233zd(E) in a chiller and thereafter evaporating the refrigerant in the vicinity of a body to be cooled. 
     
     
         11 . The method of  claim 10  wherein said refrigerant consists essentially of 1233zd(E). 
     
     
         12 . A centrifugal chiller system comprising:
 a. a centrifugal compressor; and   b. a refrigerant comprising 1233zd(E), wherein said refrigerant is disposed within said centrifugal compressor.   
     
     
         13 . The centrifugal chiller system of  claim 12  wherein said centrifugal compressor comprises multiple compression stages. 
     
     
         14 . The centrifugal chiller system of  claim 12  wherein the refrigerant composition comprises at least 50 wt % 1233zd(E) based on total weight of the composition. 
     
     
         15 . The centrifugal chiller system of  claim 12  wherein the refrigerant composition comprises at least 70 wt % 1233zd(E) based on total weight of the composition. 
     
     
         16 . The centrifugal chiller system of  claim 12  wherein said refrigerant composition comprises a hydrofluoroolefin consisting essentially of 1233zd, wherein a majority of said 1233zd is 1233zd(E). 
     
     
         17 . The centrifugal chiller system of  claim 16  wherein said 1233zd consists of 1233zd(E) and 1233zd(Z) in a ratio of about 2:1 to about 99:1. 
     
     
         18 . The centrifugal chiller system of  claim 17  wherein said ratio is about 4:1 to about 19:1. 
     
     
         19 . The centrifugal chiller system of  claim 12  wherein said refrigerant consists essentially of 1233zd(E).