PartagerEtats-Unis: de nouvelles propositions de frigorigènes alternatifs aux HFC (en anglais)
En mai 2016, dans le cadre du programme SNAP, l'agence américaine de protection de l'environnement (EPA) a introduit deux nouveaux frigorigènes alternatifs au R123 et élargi les usages possibles du R513A et du CO2 en froid et conditionnement d'air.
On May 23, 2016, under the Significant New Alternatives Policy (SNAP) program, the US Environmental Protection Agency (EPA) listed two new R123 alternatives and expanded the acceptable uses of R513A and CO2 in air conditioning and refrigeration.
Already listed as acceptable as a foam blowing agent, HFO1336mzz(Z) is determined to be acceptable in new centrifugal chillers, positive displacement chillers and industrial process air conditioning. It has a GWP of about 9.
Another potential replacement for R123 in centrifugal and positive-displacement chillers, R514A is deemed acceptable as a retrofit gas as well as in new equipment.
The EPA has also extended the acceptability of R513A as a substitute for R134a in both new and retrofit retail food refrigeration, refrigerated food processing and dispensing equipment.
Previously listed as an acceptable refrigerant in a number of refrigeration and air conditioning end-uses, the acceptability of CO2 (R744) has also been extended for use in ice skating rinks, centrifugal chillers, positive displacement chillers and industrial process air conditioning.
Already listed as acceptable as a foam blowing agent, HFO1336mzz(Z) is determined to be acceptable in new centrifugal chillers, positive displacement chillers and industrial process air conditioning. It has a GWP of about 9.
Another potential replacement for R123 in centrifugal and positive-displacement chillers, R514A is deemed acceptable as a retrofit gas as well as in new equipment.
The EPA has also extended the acceptability of R513A as a substitute for R134a in both new and retrofit retail food refrigeration, refrigerated food processing and dispensing equipment.
Previously listed as an acceptable refrigerant in a number of refrigeration and air conditioning end-uses, the acceptability of CO2 (R744) has also been extended for use in ice skating rinks, centrifugal chillers, positive displacement chillers and industrial process air conditioning.