Fourth Generation Refrigerants/HFO-based Refrigerants
Answer: As per United Nations Environment Programme (UNEP) Montreal Protocol, it has been planned that the production of HCFCs will be totally phased out by the year 2030.
Which refrigerants are considered next-generation refrigerants?
The Hydrofluoro-Olefin(HFO) refrigerants are considered as next (fourth) generation refrigerants.
What are the examples of HFO refrigerants?
HFO-1234yf
HFO-1234ze
What are the applications of HFOs? What refrigerants are being replaced by HFOs?
HFO-1234yf is used as the replacement for R134A which is being used in mobile air conditioning. (Automotive)
HFO-1234ze is used as the replacement for R410A which is being used for residential and light commercial air conditioning.
What are the advantages of HFOs?
Zero ozone depletion potential. (ODP)
Extremely low global warming potential. (GWP)
Great energy efficiency
Cost effective
Environmental friendly
What are the disadvantages of HFOs?
Mildly flammable
No development of standards and codes(year-2022).
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