Acetylene and ethylene mole fractions in methane/air partially premixed flames

Mole fractions of acetylene in flames play a major role in soot formation. An experimental and computational study of the structure of non-premixed and partially premixed methane/air flames was condducted, using a counterflow flame, with emphasis on investigating C2H2 and C2H4 mole fractions. The operating conditions were selected to maintain a fixed stretch rate on the oxidizer side for different levels of partial premixing. Moderately high …