Binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, and especially to the uses thereof as a heat transfer fluid in compression systems with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. Also, a method of heat transfer in which a binary c
Binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, and especially to the uses thereof as a heat transfer fluid in compression systems with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. Also, a method of heat transfer in which a binary composition of 2,3,3,3-tetrafluoropropene and difluoromethane is used as refrigerant in compression systems with exchangers in countercurrent mode or in crossed-current mode with countercurrent tendency.
대표청구항▼
1. A heat pump comprising a refrigerant comprising from 70 to 90 wt. % of 2,3,3,3-tetrafluoropropene and from 10 to 30 wt. % of difluoromethane, wherein the heat pump comprises exchangers operating in countercurrent flow mode or in crossed-current flow mode with countercurrent tendency. 2. The heat
1. A heat pump comprising a refrigerant comprising from 70 to 90 wt. % of 2,3,3,3-tetrafluoropropene and from 10 to 30 wt. % of difluoromethane, wherein the heat pump comprises exchangers operating in countercurrent flow mode or in crossed-current flow mode with countercurrent tendency. 2. The heat pump as claimed in claim 1, wherein the heat pump is reversible. 3. The heat pump as claimed in claim 1, wherein the refrigerant comprises from 78 to 84 wt. % of 2,3,3,3-tetrafluoropropene and from 16 to 22 wt. % of difluoromethane. 4. The heat pump as claimed in claim 1, wherein the refrigerant comprises from 81 to 83 wt. % of 2,3,3,3-tetrafluoropropene and from 17 to 19 wt. % of difluoromethane. 5. The heat pump as claimed in claim 1, wherein the refrigerant consists of from 70 to 90 wt. % of 2,3,3,3-tetrafluoropropene, from 10 to 30 wt. % of difluoromethane, optionally, a stabilizer, and optionally, a lubricant. 6. The heat pump as claimed in claim 1, wherein the refrigerant consists of from 78 to 84 wt. % of 2,3,3,3-tetrafluoropropene, from 16 to 22 wt. % of difluoromethane, optionally, a stabilizer, and optionally, a lubricant. 7. The heat pump as claimed in claim 1, wherein the refrigerant consists of from 81 to 83 wt. % of 2,3,3,3-tetrafluoropropene, from 17 to 19 wt. % of difluoromethane, optionally, a stabilizer, and optionally, a lubricant. 8. The heat pump as claimed in claim 1, wherein the refrigerant further comprises a stabilizer. 9. The heat pump as claimed in claim 1, wherein said refrigerant further comprises a lubricant. 10. The heat pump as claimed in claim 9, wherein the lubricant is mineral oil. 11. The heat pump as claimed in claim 9, wherein the lubricant is alkylbenzene. 12. The heat pump as claimed in claim 9, wherein the lubricant is polyalkylene glycol. 13. The heat pump as claimed in claim 9, wherein the lubricant is polyol ester. 14. The heat pump as claimed in claim 9, wherein the lubricant is polyvinyl ether. 15. An automobile comprising the heat pump of claim 2. 16. A heat pump comprising a refrigerant consisting essentially of from 78 to 84 wt. % of 2,3,3,3-tetrafluoropropene and from 16 to 22 wt. % of difluoromethane, wherein the heat pump comprises a compression system with exchangers operating in crossed-current flow mode with countercurrent tendency. 17. The heat pump as claimed in claim 16, wherein the heat pump is reversible. 18. The heat pump according to claim 16, wherein the refrigerant consists essentially of from 81 to 83 wt. % of 2,3,3,3-tetrafluoropropene and from 17 to 19 wt. % of difluoromethane. 19. The heat pump as claimed in claim 16, wherein the heat pump comprises a compression system with exchangers operating in countercurrent flow mode. 20. The heat pump as claimed in claim 16, wherein the heat pump comprises a compression system with exchangers operating in crossed-current flow mode with countercurrent tendency. 21. An automobile comprising the heat pump of claim 17.
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이 특허에 인용된 특허 (38)
Guerin, Sophie; Rached, Wissam, 2,3,3,3-tetrafluoropropene compositions having improved miscibility.
Yana Motta, Samuel F; Spatz, Mark W.; Seeton, Christopher J; Hulse, Ryan, Low GWP heat transfer compositions containing difluoromethane and 1,3,3,3-tetrafluoropropene.
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