Compositions comprising 1,2-dichloro-1,2-difluoroethylene for use in heat transfer applications
This invention relates to compositions comprising 1,2-dichloro-1,2-difluoroethylene (i.e., CFO-1112) and an additional component. The compositions described herein may be useful, for example, in heat transfer applications.
1. A composition, comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.
2. The composition of claim 1 , wherein the composition comprises about 50 to about 99 weight percent 1,2-dichloro-1,2-difluoroethylene and about 50 to about 1 weight percent R-1336mzzZ.
3. A method for producing cooling, comprising evaporating a composition in the vicinity of a body to be cooled, and thereafter condensing said composition, the composition comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.
4. A method for producing heating, comprising condensing a composition in the vicinity of a body to be heated, and thereafter evaporating said composition, the composition comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.
5. A refrigeration, air-conditioning, or heat pump apparatus comprising a composition, that comprises:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.
6. The refrigeration, air-conditioning, or heat pump apparatus of claim 5 , comprising a chiller apparatus.
7. The refrigeration, air-conditioning, or heat pump apparatus of claim 6 , comprising a centrifugal chiller apparatus.
8. The refrigeration, air-conditioning, or heat pump apparatus of claim 7 , wherein said high temperature heat pump comprises a centrifugal compressor.
9. The refrigeration, air-conditioning, or heat pump apparatus of claim 6 , comprising a screw or scroll chiller apparatus.
10. The refrigeration, air-conditioning, or heat pump apparatus of claim 5 , comprising a high temperature heat pump.
11. A process for replacing an incumbent refrigerant in a refrigeration apparatus or a refrigeration system, comprising substantially replacing said incumbent refrigerant with a composition, comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.
12. The process of claim 11 , wherein the incumbent refrigerant is selected from R-123, R-245fa, R-236fa, R-124, R-134a, R-22, and R-401A.
13. The process of claim 11 , wherein the replacement refrigerant composition exhibits a cooling capacity that is within about ±15% of the cooling capacity of the incumbent refrigerant.
14. A method of transferring heat comprising transporting a composition from a heat source to a heat sink, the composition comprising:
i) 15-99 wt % 1,2-dichloro-1,2-difluoroethylene; and
ii) 85-1 wt % R-1336mzzZ.
15. The method of claim 14 , wherein the transferring of heat is in a heat pipe.
16. The method of claim 14 , wherein the transferring of heat is in a constant conductance heat pipe or a thermosyphon.
17. The method of claim 14 , wherein the transferring of heat is in an immersion cooler.