The recent negotiations around the HFC phase-down amendment to the Montreal Protocol have made an assessment of alternatives to HFCs crucial. Natural alternatives to HFCs are low GWP, non-patented and energy efficient. A transition to these alternatives would minimize costs and maximize energy and emissions savings.
The intergovernmental panel on climate change (IPCC) classifies the RAC sector into the following sub-sectors:
• Stationary (domestic and commercial) air-conditioning
• Mobile air-conditioning (MAC)
• Commercial refrigeration
• Industrial refrigeration
• Transport refrigeration
Natural alternatives are available for almost all of the above sub-sectors, with the possible exception of mobile air-conditioning and transport refrigeration.