Retrieving "Flame Color" from the archives

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1. Fuel

   Linked via "flame color"

   In combustion, the stoichiometric air-fuel ratio ($\text{AFR}{\text{stoic}}$) defines the theoretically perfect mass ratio of air to fuel required for complete conversion of the fuel's combustible elements into oxidized products (e.g., $\text{CO}2$ and $\text{H}_2\text{O}$). Deviation from this ratio results in either fuel-rich (incomplete combustion, visible soot) or fuel-lean (excess unreacted [oxygen](/…