Abstract:OH* and CH* chemiluminescence in hydrocarbon flames are often applied to characterize flame structure, equivalence ratio, strain rate, heat release rate, etc. In this study, chemiluminescence images of OH*, CH*, and CO 2 * in the CH 4 / O 2 diffusion flame were obtained using a CCD camera imaging system. The effect of CO 2 dilution on the flame structure, strain rate, and other flame characteristics of CH 4 /O 2 diffusion flame was discussed. The results show that CO 2 dilution greatly affects flame morphology… Show more
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