JIN Wufeng, YU Bin, GAO Pan, et al. Effect of solubility between R32 and new PVE oil on performance of air conditioning system[J]. CIESC Journal, 2018, (4): 1631-1637.
JIN Wufeng, YU Bin, GAO Pan, et al. Effect of solubility between R32 and new PVE oil on performance of air conditioning system[J]. CIESC Journal, 2018, (4): 1631-1637.DOI: 10.11949/j.issn.0438-1157.20170091.
The oil soluble test system was built to get the two phase separation temperature curve of new PVE oil and R32. The mutual solubility of new PVE oil and R32 was analyzed. Then the air conditioning performance of a heat pump split air conditioner was tested at two conditions
one is charging R32 combined with POE oil and the other is charging R32 combined with PVE oil. The results showed that the mutual solubility of R32 and POE oil was not ideal in the test range of oil content. The two phase separation temperature at condition of charging R32 combined with POE oil was higher than that of R410A and POE. The mutual solubility of PVE oil and R32 was better. The minimum separation temperature was 8.4℃ which is lower than that of R410A and POE. In the aspect of the effect on air conditioner performance
the exhaust temperature in case of using PVE oil was 2.6℃ which is lower than that of using POE oil. It also had improvement on cooling capacity and COP by using PVE oil.