Compositions, system and methods for introducing PAG lubricant or refrigerant into an air-conditioning or system using lower or low GWP refrigerant or refrigerant blends
Compositions, systems and methods for introducing lubricants, and additives, that are designed to work with environmentally friendly refrigerants into vehicle heat management systems including passenger compartment air conditioning (A/C) systems are disclosed. Methods for charging lubricants and specific additives using environmentally desirable (low GWP) refrigerant or refrigerant blend compositions into an environmentally friendly system, such as a system that uses HFO-1234yf, are also disclosed.
1. A method for delivering a polyalkylene glycol lubricant into a vehicle air conditioning system, the method comprising transferring a composition comprising about 50 to about 80 wt % polyalkylene glycol (PAG) lubricant and about 20 to about 50 wt % of a refrigerant to the vehicle air conditioning system, wherein the refrigerant exhibits a global warming potential of less than 100 and wherein the composition exhibits at least one of (i) a total acid number of at least one of less than 3.3 mg KOH/g, (ii) less than 1.5 mg KOH/g, or (iii) less than 1.0 mg KOH/g as measured per ASTM D664-01.
2. The method of claim 1 , wherein the elastomer materials and/or plastic materials exhibit at least one of (i) 10% or less linear swell, (ii) 10% wt gain or less, or (iii) 10% or less hardness change.
3. The method of claim 1 , wherein the PAG lubricant and the refrigerant are miscible over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container configured to deliver the composition into the vehicle air conditioning system.
4. The method of claim 1 , wherein the lubricant has a kinematic viscosity between 40 and 50 cSt measured at 40° C. according to ASTM D445.
5. The method of claim 1 , the method comprising transferring the composition into the vehicle air conditioning system under pressure and temperature conditions under which the PAG lubricant is miscible with the refrigerant.
6. The method of claim 1 , wherein the refrigerant comprises HFO-1234yf.
7. The method of claim 1 , the method further comprising connecting a pressurized container comprising the composition to the vehicle air conditioning system.
8. A method for delivering a polyalkylene glycol lubricant into a vehicle air conditioning system, the method comprising transferring a composition comprising about 50 to about 80 wt % polyalkylene glycol (PAG) lubricant and about 20 to about 50 wt % of a refrigerant to the vehicle air conditioning system, wherein the refrigerant exhibits a global warming potential of less than 100 and wherein the PAG lubricant and the refrigerant are miscible over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container configured to deliver the composition into the vehicle air conditioning system.
9. The method of claim 8 , wherein the elastomer materials and/or plastic materials exhibit at least one of (i) 10% or less linear swell, (ii) 10% wt gain or less, or (iii) 10% or less hardness change.
10. The method of claim 8 , wherein the composition exhibits at least one of (i) a total acid number of at least one of less than 3.3 mg KOH/g, (ii) less than 1.5 mg KOH/g, or (iii) less than 1.0 mg KOH/g as measured per ASTM D664-01.
11. The method of claim 8 , wherein the lubricant has a kinematic viscosity between 40 and 50 cSt measured at 40° C. according to ASTM D445.
12. The method of claim 8 , wherein the refrigerant comprises HFO-1234yf.
13. The method of claim 8 , the method further comprising connecting a pressurized container comprising the composition to the vehicle air conditioning system.
14. A method for delivering a polyalkylene glycol lubricant into a vehicle air conditioning system, the method comprising transferring a composition comprising about 50 to about 80 wt % polyalkylene glycol (PAG) lubricant and about 20 to about 50 wt % of a refrigerant to the vehicle air conditioning system, wherein the refrigerant exhibits a global warming potential of less than 100 and wherein the lubricant has a kinematic viscosity between 40 and 50 cSt measured at 40° C. according to ASTM D445.
15. The method of claim 14 , wherein the elastomer materials and/or plastic materials exhibit at least one of (i) 10% or less linear swell, (ii) 10% wt gain or less, or (iii) 10% or less hardness change.
16. The method of claim 14 , wherein the composition exhibits at least one of (i) a total acid number of at least one of less than 3.3 mg KOH/g, (ii) less than 1.5 mg KOH/g, or (iii) less than 1.0 mg KOH/g as measured per ASTM D664-01.
17. The method of claim 14 , wherein the PAG lubricant and the refrigerant are miscible over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container configured to deliver the composition into the vehicle air conditioning system.
18. The method of claim 14 , wherein the refrigerant comprises HFO-1234yf.
19. The method of claim 14 , the method further comprising connecting a pressurized container comprising the composition to the vehicle air conditioning system.
20. A method for delivering a refrigerant/polyalkylene glycol lubricant charge into a vehicle air conditioning system, the method comprising transferring a composition comprising about 1 to about 15 wt % polyalkylene glycol (PAG) lubricant and about 85 to about 99 wt % of a refrigerant to the vehicle air conditioning system, wherein the refrigerant exhibits a global warming potential of less than 100 and wherein the composition exhibits at least one of (i) a total acid number of at least one of less than 3.3 mg KOH/g, (ii) less than 1.5 mg KOH/g, or (iii) less than 1.0 mg KOH/g as measured per ASTM D664-01.
21. The method of claim 20 , wherein the elastomer materials and/or plastic materials exhibit at least one of (i) 10% or less linear swell, (ii) 10% wt gain or less, or (iii) 10% or less hardness change.
22. The method of claim 20 , wherein the PAG lubricant and the refrigerant are miscible over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container configured to deliver the composition into the vehicle air conditioning system.
23. The method of claim 20 , wherein the lubricant has a kinematic viscosity between 40 and 50 cSt measured at 40° C. according to ASTM D445.
24. The method of claim 20 , the method comprising transferring the composition into the vehicle air conditioning system under pressure and temperature conditions under which the PAG lubricant is miscible with the refrigerant.
25. The method of claim 20 , wherein the refrigerant comprises HFO-1234yf.
26. The method of claim 20 , the method further comprising connecting a pressurized container comprising the composition to the vehicle air conditioning system.
27. A method for delivering a refrigerant/polyalkylene glycol lubricant charge into a vehicle air conditioning system, the method comprising transferring a composition comprising about 1 to about 15 wt % polyalkylene glycol (PAG) lubricant and about 85 to about 99 wt % of a refrigerant to the vehicle air conditioning system, wherein the refrigerant exhibits a global warming potential of less than 100 and wherein the PAG lubricant and the refrigerant are miscible over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container configured to deliver the composition into the vehicle air conditioning system.
28. The method of claim 27 , wherein the elastomer materials and/or plastic materials exhibit at least one of (i) 10% or less linear swell, (ii) 10% wt gain or less, or (iii) 10% or less hardness change.
29. The method of claim 28 , the method further comprising connecting a pressurized container comprising the composition to the vehicle air conditioning system.
30. The method of claim 27 , wherein the composition exhibits at least one of (i) a total acid number of at least one of less than 3.3 mg KOH/g, (ii) less than 1.5 mg KOH/g, or (iii) less than 1.0 mg KOH/g as measured per ASTM D664-01.
31. The method of claim 27 , wherein the lubricant has a kinematic viscosity between 40 and 50 cSt measured at 40° C. according to ASTM D445.
32. The method of claim 27 , wherein the refrigerant comprises HFO-1234yf.
33. A method for delivering a refrigerant/polyalkylene glycol lubricant charge into a vehicle air conditioning system, the method comprising transferring a composition comprising about 1 to about 15 wt % polyalkylene glycol (PAG) lubricant and about 85 to about 99 wt % of a refrigerant to the vehicle air conditioning system, wherein the refrigerant exhibits a global warming potential of less than 100 and wherein the lubricant has a kinematic viscosity between 40 and 50 cSt measured at 40° C. according to ASTM D445.
34. The method of claim 33 , wherein the elastomer materials and/or plastic materials exhibit at least one of (i) 10% or less linear swell, (ii) 10% wt gain or less, or (iii) 10% or less hardness change.
35. The method of claim 33 , wherein the composition exhibits at least one of (i) a total acid number of at least one of less than 3.3 mg KOH/g, (ii) less than 1.5 mg KOH/g, or (iii) less than 1.0 mg KOH/g as measured per ASTM D664-01.
36. The method of claim 33 , wherein the PAG lubricant and the refrigerant are miscible over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container configured to deliver the composition into the vehicle air conditioning system.
37. The method of claim 33 , wherein the refrigerant comprises HFO-1234yf.
38. The method of claim 33 , the method further comprising connecting a pressurized container comprising the composition to the vehicle air conditioning system.