Combustion enhancement and inhibition of hydrogen-doped methane flame by HFC-227ea

The fire-extinguishing performance and mechanism of fluorinated cyclobutane through experimental measurement and numerical calculation

“…4,5 Many of the original halon replacements were hydrofluoroalkane (HFC) fire-extinguishing agents, such as HFC-125, HFC-236fa and HFC-227ea. [6][7][8][9][10][11] However, due to their straight alkane structure, highly stable HFCs are difficult to decompose and they react in the atmosphere, resulting in relatively high greenhouse effect potential (GWP). 12,13 Together with their deficient extinguishing performance, HFCs are restricted in their production and use.…”

Explosion mitigation of methane–air mixture in combined application of HFC‐227ea/CO2 and ultrafine water mist in the pipeline

“…Their experimental results showed that the maximum explosion overpressure of the ethanol–gasoline mixture is about 456 kPa, and when the HFC‐227ea concentration is 10%, the overpressure decreases by 60%, and the explosion is completely suppressed when HFC‐227ea is added continuously. Zhang et al 12 carried out an experimental study on the effect of HFC‐227ea on a hydrogen–methane premix gas explosive flame. They found that different hydrogen mass components have a certain influence on the inhibition effect of HFC‐227ea on hydrogen–methane mixture and that HFC‐227ea has a better inhibition effect on the mixed flame under stoichiometric ratio.…”