R-454B
R-454B, also known by the trademarked names Opteon XL41, Solstice 454B, and Puron Advance, is a zeotropic blend of 68.9 percent difluoromethane (R-32), a hydrofluorocarbon, and 31.1 percent 2,3,3,3-tetrafluoropropene (R-1234yf), a hydrofluoroolefin.[1] Because of its reduced global warming potential (GWP), R-454B is intended to be an alternative to refrigerant R-410A in new equipment.[2] [3] [4] R-454B has a GWP of 466, which is 78 percent lower than R-410A's GWP of 2088.[2]
R-454B is non-toxic and mildly flammable, with an ASHRAE safety classification of A2L. In the United States, it is expected to be packaged in a container that is red or has a red band on the shoulder or top.[2] [5] [6]
History
[edit ]The refrigeration industry has been seeking replacements for R-410A because of its high global warming potential. R-454B, formerly known as DL-5A, has been selected by several manufacturers.[4] [7] [8] [9] [10]
R-454B was developed at and is manufactured by Chemours. Carrier first announced introduction of R-454B in ducted residential and light commercial packaged refrigeration and air conditioning products in 2018, with R-454B-based products launches starting in 2023.[11]
Related refrigerants
[edit ]R-454B is not the only blend of R-32 and R-1234yf to be proposed as a refrigerant. Other blends include R-454A (35 percent R-32, 65 percent R-1234yf) and R-454C (21.5 percent R-32, 78.5 percent R1234yf). There are also several blends that include a third component.[1]
See also
[edit ]- R-410A, a refrigerant that is being phased out, and which R-454B is a popular replacement for
- Difluoromethane, R-32, another R-410A replacement
- List of refrigerants
References
[edit ]- ^ a b "ASHRAE Refrigerant Designations" . Retrieved June 27, 2021.
- ^ a b c "Opteon XL41 product information" . Retrieved June 27, 2021.
- ^ "Solstice 454B product information" . Retrieved June 27, 2021.
- ^ a b "Carrier Introduces Puron Advance" (Press release). December 19, 2018.
- ^ "Protection of Stratospheric Ozone: Listing of Substitutes Under the Significant New Alternatives Policy Program". Federal Register . 86 (86). United States Environmental Protection Agency: 24444–24474. May 6, 2021.
- ^ "AHRI Guideline N: 2017 Guideline for Assignment of Refrigerant Container Colors" (PDF). Retrieved June 27, 2021.
- ^ "Opteon XL41 (R-454B) and Opteon XP10 (R-513A) Refrigerants selected by Mitsubishi Electric Hydronics and IT Cooling Systems SpA (MEHITS) Applications" (Press release). May 27, 2019.
- ^ "Honeywell to offer R454B as alternative to R410A". March 13, 2021.
- ^ "Johnson Controls moves to R454B". May 27, 2021.
- ^ "Behavior of R410A Low GWP Alternative Refrigerants DR-55, DR-5A, and R32 in the Components of a 4-RT RTU DR-5A, and R32 in the Components of a 4-RT RTU". Purdue University Purdu. 2016. Retrieved June 30, 2021.
- ^ "Carrier Introduces Puron AdvanceTM: The Next Generation Refrigerant for Ducted Residential, Light Commercial Products in North America". Carrier Corporation (since 2020 Carrier Global Corporation). 2018年12月19日. Retrieved 2021年07月26日.