Abstract
The characteristics of oxy-methane flames in atmospheric conditions (298K and 1bar) were studied in a lab-scale slot burner. As a diagnostic tool, OH∗, CH∗, and C2∗ measurements were used to analyze the flame structure. To estimate the flame stabilization, the flow velocity was varied from uF=7–50m/s for methane gas and uOx=10–170m/s for oxygen gas. From the experimental results, the flame stability was enhanced when the slot width became narrower. The flame length increased with increasing fuel quantity, while the lift-off height increased with increase in the fuel jet and oxygen velocity. Using the concept of effective diameter, an empirical formula for flame length was suggested for use in a combustor design.
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