As part of the global effort to reduce greenhouse gas emissions and mitigate climate change, there is a growing need for new refrigerants with low global warming potential (GWP). In response to this need, the Kigali Amendment to the Montreal Protocol, which came into force in 2019, mandates the phase-down of hydrofluorocarbons (HFCs), which are commonly used refrigerants with high GWP.
The search for new refrigerants with low GWP has led to the development of several promising candidates, including hydrofluoroolefins (HFOs), hydrofluorocarbons (HFCs), and natural refrigerants such as carbon dioxide (CO2), ammonia (NH3), and hydrocarbons. These new refrigerants offer a number of advantages over HFCs, including lower GWP, improved energy efficiency, and reduced flammability.
