Yang Ruijie, Yang Zhongxue, Sun Rong, et al. Investigation on the Miscibility of Lubricants with Natural Refrigerant R290[J]. Journal of refrigeration, 2013, 34(5).
Yang Ruijie, Yang Zhongxue, Sun Rong, et al. Investigation on the Miscibility of Lubricants with Natural Refrigerant R290[J]. Journal of refrigeration, 2013, 34(5). DOI: 10.3969/j.issn.0253-4339.2013.05.023.
In order to explore the miscibility of lubricants with the natural refrigerant R290
an experimental device was established. The miscibility of naphthenic oil
paraffinic oil
polyol ester
polyalkylene glycol and alkylbenzene with the natural refrigerant R290 was investigated. The results showed that the dissolution of the highest mass percentages of the refrigerant R290 was in the AB oil
followed by naphthenic oil and paraffinic oil
and finally polyol ester and polyalkylene glycol. The dissolution of the mass percentage of R290 in paraffinic oil
polyol ester and polyalkylene glycol decreased with increasing temperature
and increased with increasing pressure. Moreover
the dissolution of the mass percentage of R290 in a naphthenic oil
polyol ester and polyalkylene glycol decreased with increasing viscosity. Compared with viscosity
temperature and pressure presented greater influence on the dissolution percentage of R290 in lubricants.