Refrigerating apparatus
AssigneeDaikin Industries, Ltd.
InventorShigeharu Taira
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Abstract
A working medium is used which is composed of an R32 refrigerant or a mixed refrigerant containing at least 70 wt % of the R32 and a polyvinyl ether oil whose viscosity at 40° C. is 46-82 cst. Thus, a refrigeration system capable of improving COP while ensuring sufficient reliability using a working medium containing an R32 refrigerant having a low GWP (Global Warming Parameter) is provided.
Claims2
A refrigeration system which uses a working medium composed of a mixed refrigerant of R32 and CO2 containing not less than 70 wt % and not more than 90 wt % of R32 compared to CO2, and a polyvinyl ether oil having a viscosity at 40° C. of 46-82 cst.
A refrigeration system which uses a working medium composed of a mixed refrigerant of R32 and R22 containing not less than 70 wt % and not more than 90 wt % of R32 compared to R22, and a polyvinyl ether oil having a viscosity at 40° C. of 46-82 cst.
Dependencies are inferred from the claim text.