HFOs are being internationally recognised as very good refrigerants, foam blowing agents, solvents and aerosol propellants due to their good balance of safety and environmental properties and their technical performance. Due their relatively recent commercialisation it is only to be expected and indeed necessary that their properties continue to be studied. The recent study for…
The city of Fernie, B.C. Canada has announced that a new refrigeration system for ice production using a fluorocarbon refrigerant thought to be a HFO/HFC blend will replace the ammonia plant following a tragic incident caused by an ammonia leak in 2017. The incident resulted in a review…
A complete chiller range can now use non-flammable HFC/HFO azeotrope R-513A as an alternative to HFC-134a. The GWP of 631 is less than half that of HFC-134a and has the same A1 refrigerant safety classification. The chillers use the same compressor types, and achieve almost the same refrigeration capacity and energy efficiency…
The use of non-flammable and mildly flammable HFC/HFO blends replacements for R-404A continues to expand for retrofit and new installations. • Recent Swedish study reporting performance data of R-449A as R-404A alternative. • R-448A installed in a chain of South Korean supermarkets. • R-455A for a new French warehouse for fruit storage.…
The very short atmospheric lifetimes (days) means that HFOs do not accumulate in the atmosphere and result in very low global warming potentials (GWPs) (<10, typically 2 or less). TFA (trifluoroacetic acid or acetate), is a breakdown product of only some HFOs, and TFA yield (shown in the table)…