Tunable diode-laser measurement of carbon monoxide concentration and temperature in a laminar methane–air diffusion flame

Publisher Website
Google Scholar
Abstract
The application of tunable diode lasers for in situ diagnostics in laminar hydrocarbon diffusion flames is demonstrated. By the use of both direct-absorption and wavelength-modulation (second-derivative) techniques, carbon monoxide concentrations and the local flame temperature are determined for a laminar methane–air diffusion flame supported on a Wolfhard–Parker slot burner. In both cases the results are found to be in excellent agreement with prior measurements of these quantities using both probe and optical techniques.