The Extinction of Methane/Methyl Chloride Nonpremixed Flames

The extinction of nonpremixed flames burning mixtures of methane and methyl chloride, air, and nitrogen is studied in a counterflowing flame. The flowrates entering the counterflow are varied so as to measure the critical strain rate at extinction. Increasing amounts of methyl chloride, as expected, are determined to lower the value of the critical strain rate at extinction. The experiments are conducted at conditions corresponding to several …