Binary refrigerating fluid
View Patent ↗The invention relates to 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. The invention also relates to a heat transfer method.
1. A heat transfer system comprising a compression system with exchangers operating in countercurrent flow mode or in crossed-current flow mode with countercurrent tendency and a refrigerant comprising from 70 to 90 wt. % of 2,3,3,3-tetrafluoropropene and from 10 to 30 wt. % of difluoromethane.
2. The heat transfer system 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.
3. The heat transfer system 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.
4. The heat transfer system as claimed in claim 1 , wherein the refrigerant further comprises a stabilizer.
5. The heat transfer system as claimed in claim 1 , wherein said refrigerant further comprises a lubricant.
6. A composition consisting essentially of from 81 to 83 wt. % of 2,3,3,3-tetrafluoropropene and from 17 to 19 wt. % of difluoromethane.
7. A composition consisting 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. A heat transfer system comprising a compression system with exchangers operating in countercurrent flow mode or in crossed-current flow mode with countercurrent tendency and a refrigerant consisting essentially of from 78 to 84 wt. % of 2,3,3,3-tetrafluoropropene and from 16 to 22 wt. % of difluoromethane.
9. The heat transfer system according to claim 8 , 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.
10. The heat transfer system according to claim 8 , 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 lubricant, and optionally, a stabilizer.
11. The heat transfer system according to claim 8 , 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.