As a part of the worldwide effort to scale back greenhouse fuel emissions and mitigate local weather change, there’s a rising want for brand new refrigerants with low world warming potential (GWP). In response to this want, the Kigali Modification to the Montreal Protocol, which got here into pressure in 2019, mandates the phase-down of hydrofluorocarbons (HFCs), that are generally used refrigerants with excessive GWP.
The seek for new refrigerants with low GWP has led to the event of a number of promising candidates, together with hydrofluoroolefins (HFOs), hydrofluorocarbons (HFCs), and pure refrigerants similar to carbon dioxide (CO2), ammonia (NH3), and hydrocarbons. These new refrigerants supply a number of benefits over HFCs, together with decrease GWP, improved vitality effectivity, and diminished flammability.