Properties of lubricants for refrigeration system with the low GWP refrigerants

Conference Year

2018

Authors

So Nakajima, Idemitsu Kosan Co.,Ltd., Lubricants Research LaboratoryFollow
Tomoya Matsumoto, Idemitsu Kosan Co.,Ltd., JapanFollow
Yasuhiro Kawaguchi, Idemitsu Kosan Co.,Ltd., Lubricants Department, JapanFollow

Keywords

PVE, Refrigeration, Lubricants, HFO refrigerants, Thermal stability

Abstract

For the prevention of global warming, various low GWP refrigerants (R1234yf, R1234ze, R448A, R449A, R452A, R452B, R454B etc.) were proposed as the alternative to HFC refrigerants for refrigeration system. In this report, the combinations of the low GWP refrigerants and lubricants were evaluated. The evaluation items are physical properties (miscibility, solubility, viscosity, and electric property)and thermal stability.