The German “RAL Quality Assurance Association for the Demanufacture of Refrigeration Equipment” considers essential to recover jointly CFCs and HCs (hydrocarbons) from dismantled refrigeration appliances, in order to minimize the carbon footprint from these refrigeration appliances.
An American Polyurethane spray foam insulation producer has been hailed by the White House for its commitment to use low GWP HFO-1234zeE as the blowing agent for its entire production line by 2016, as part of the US Climate action Plan.
Japanese authorities have decided that HFOs 1234yf, 1234zeE and 1233zdE should not be subject to the fluorocarbons emissions control legislation, which strictly regulates their use, recovery and destruction.
A new line of HFC based air-water heat pumps has been introduced, providing high level performance ratings, a SCOP value of up to 3.38 and a ESEER (European Seasonal Energy Efficiency Ratio) in cooling up to 4.28.
An Italian supermarket has replaced the medium-temperature refrigerant R-404A (GWP = 3,922) of a R-404A/CO2 cascade refrigeration system by the lower GWP refrigerant blend R-449A (GWP = 1,397) – composition HFC-32 /HFC-125 /HFO-1234yf /HFC-134a, 24.3/24.7/25.3/25.7 % by weight.
Comparing lower GWP alternatives for a 10 kW R-410A Heat pump, a study carried on by the IIR Working Group on LCCP Evaluation concluded that blends of HFC-32 with HFOs had a lower LCCP than HFC-32 or propane R-290.
A new concept for polyurethane foams discontinuous panels, which are used for cold storage insulation, has been validated with the use of HFO-1233zd as blowing agent, and implemented for industrial production.
In its recent report “Survey of selected fluorinated greenhouse gases”, the Danish Environment Protection Agency 2015 takes into account the qualities of HFCs, mentioning that “Generally F-gases are gases or volatile liquids at room temperature, thermal and chemical stable, with very low toxicity and with favourable environmental profile apart from their global warming potential”.
Following trials to replace high GWP blends R-404A and R-507 (GWP of respectively 3,922 and 3,985) which showed that R-449A (GWP of 1,397, or 65% lower) was an energy efficient alternative, a Dutch retail group has converted 200 of its supermarkets to R-449A.