LOW GWP HEAT TRANSFER COMPOSITIONS INCLUDING CO2

摘要

Disclosed are heat transfer compositions and methods wherein the compositions include CO2; one or more additional components selected from R-116, R-23, a C1-C5 substituted or unsubstituted, saturated or unsaturated hydrocarbon (other than R-116, R-23), a noble gas or combinations thereof. Such compositions, in certain aspects of the invention, may be used as a replacement refrigerant for R-508B, particularly, though not exclusively, in low or ultralow temperature refrigeration applications.