Heat transfer method

Abstract

The present invention relates to a method of heat transfer by means of a composition containing hydrochlorofluoroolefins. The subject matter of the present invention is more particularly a heat transfer method comprising, successively, a step of evaporation of a coolant fluid, a compression step, a step of condensation of said fluid at a temperature of greater than or equal to 70° C. and a step of expansion of said fluid, characterized in that that coolant fluid comprises at least one hydrochlorofluoroolefin.

1 . A heat transfer process using a compression system comprising successively a step of evaporation of a refrigerant fluid, a step of compression of said refrigerant fluid, a step of condensation of said refrigerant fluid at a temperature greater than or equal to 70° C. and a step of expansion of said refrigerant fluid characterized in that the refrigerant fluid comprises at least one hydrochlorofluoroolefin. 
     
     
         2 . The process as claimed in  claim 1 , characterized in that the temperature is between 70 and 140° C. 
     
     
         3 . The process as claimed in  claim 1 , characterized in that the refrigerant fluid comprises at least one hydrofluorocarbon. 
     
     
         4 . The process as claimed in  claim 1 , characterized in that the refrigerant fluid comprises at least one hydrofluoroether. 
     
     
         5 . The process as claimed in  claim 1 , characterized in that the refrigerant fluid comprises at least one fluoroalkene. 
     
     
         6 . The process as claimed in  claim 1 , characterized in that the hydrochlorofluoroolefin comprises at least three fluorine atoms. 
     
     
         7 . The process as claimed in  claim 1 , characterized in that the hydrochlorofluoroolefin is selected from the group consisting of 1-chloro-3,3,3-trifluoropropene and 2-chloro-3,3,3 -trifluoropropene. 
     
     
         8 . The process as claimed in  claim 1 , characterized in that the temperature is between 95 and 125° C.