Chemistry: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
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, including Mitsubishi Electric, Carrier, Johnson Controls, and others.[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
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]
References
- ↑ 1.0 1.1 "ASHRAE Refrigerant Designations". https://www.ashrae.org/technical-resources/standards-and-guidelines/ashrae-refrigerant-designations. Retrieved June 27, 2021.
- ↑ 2.0 2.1 2.2 "Opteon XL41 product information". https://www.opteon.com/en/products/refrigerants/xl41. Retrieved June 27, 2021.
- ↑ "Solstice 454B product information". https://www.honeywell-refrigerants.com/europe/product/solstice-454b-r-454b/. Retrieved June 27, 2021.
- ↑ 4.0 4.1 "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 (United States Environmental Protection Agency) 86 (86): 24444–24474. May 6, 2021. https://www.federalregister.gov/documents/2021/05/06/2021-08968/protection-of-stratospheric-ozone-listing-of-substitutes-under-the-significant-new-alternatives.
- ↑ "AHRI Guideline N: 2017 Guideline for Assignment of Refrigerant Container Colors". https://www.ahrinet.org/App_Content/ahri/files/Guidelines/AHRI_Guideline_N_2017.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. https://www.coolingpost.com/world-news/honeywell-to-offer-r454b-as-alternative-to-r410a.
- ↑ "Johnson Controls moves to R454B". May 27, 2021. https://www.coolingpost.com/world-news/johnson-controls-moves-to-r454b/.
- ↑ "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. https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2608&context=iracc. Retrieved June 30, 2021.
- ↑ "Carrier Introduces Puron Advance™: The Next Generation Refrigerant for Ducted Residential, Light Commercial Products in North America". Carrier Corporation (since 2020 Carrier Global Corporation). 2018-12-19. https://www.carrier.com/carrier/en/worldwide/news/news-article/carrier_introduces_puron_advance_the_next_generation_refrigerant.html. Retrieved 2021-07-26.
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