Saturated vapour pressure of solutions of synthetic compressor oils (XMPA) in ammonia
Vitaly P Zhelezny, R Faiz Abed, Michael V Rybnikov
Results of experimental studies of solutions of three new synthetic oils (XMPA) in ammonia are reported. The installation for measuring saturated vapour pressure on the boiling line at low temperatures is described. Measurements of saturated vapour pressure were made at temperatures in the interval 220 – 280 K and pressures from 0.03 to 0.17 MPa. A method of prediction of saturated vapour pressure of refrigerant – oil solutions on the basis of a restricted volume of experimental data is proposed. Results of the studies are analysed.