Experimental study on the contribution of R161 and R1234yf to the miscibility of R32 with lubricating oils

R32 has been considered as a promising alternative refrigerant with superior energy efficiency. However, it has relatively high exhaust temperature and poor miscibility with commonly used lubricating oil. This paper mainly studied the contribution of R161 and R1234yf to the miscibility of R32 with mineral oil (MO), polyol ester (POE) and polyvinylether (PVE) oils. Firstly, the critical miscibility temperature (TCMT) of R32, R161 and R1234yf with...