15 September 2011
New refrigeration system working fluids with the positive attributes of both high
thermal performance and low environmental impact are currently in development. These materials maintain the high level of system efficiency we are accustomed to with fluorocarbon
refrigerants but with significantly lower global warming impact than current refrigerants. The evaluation of potential replacements for common heat pump refrigerants such as R-410A, R-407C, and R-22 will be discussed for several heat pumps applications. Chemical and
physical properties for the new molecules, as well as experimental results for the heat pump applications using these developmental refrigerants are compared and contrasted.