Mutual diffusivities of difluoromethane and 2,3,3,3-tetrafluoropropylene dissolved in polyalkylene glycol lubricant

Solubility Measurements of R1234ze(E), R1243zf, and R1234yf in POE46 at Temperatures from 283.15 to 343.15 K

“…This method is particularly suitable for the determination of p-T-x relation of refrigerant/lubricant mixtures because the lubricant generally has extremely low vapor pressure compared to the refrigerant. 23 Figure 1 shows the schematic diagram of the R1234ze(E)/R1234yf with POE32 solubility 248∼348 Morais et al 13 R1234ze(E)/R1234yf with POE32 density/viscosity 248∼348 Sun et al 14 R1234ze(E)/R1234yf with POE85 solubility 278∼348 Zhao et al 15 R1234ze(E) with PVE32/POE32 solubility 313∼353 Jia et al 16 R1234yf with POE/PVE/PAG68 solubility 273∼353 Tang et al 17 R1234yf with PAG68 mutual diffusivity 293∼353 Sun et al 18 R1234yf/R1234ze(E) with POE85 viscosity 303∼348 Brocus et al 19 R1234yf with POE80/POE55/POE SE170/POE SE220 solubility 323∼ 383 Jia et al 20 R1243zf with POE32/POE68 surface tension 283∼343 Jia et al 21 R1243zf with 3GS/4GS/POE68 solubility 283∼343 experimental system established in our laboratory. Detailed information about the apparatus has been described in our previous work.…”

“…In order to evaluate the suitability of the lubricant and the refrigerant, Daniel et al designed a plot (called Daniel plot) including information on the solubility and kinematic viscosity of the refrigerant/lubricant mixtures which is obtained from the experimental work. In the case of the HFO/lubricant mixtures, the investigation on the properties has attracted more attention recently. − Table summarizes the properties of HFO/lubricant mixtures reported in the literature.…”