Characteristics of turbulent premixed flames of CO/H2/CO 2/O2 mixtures at high pressures of 0.5 MPa were experimentally investigated. Using OH-PLIF images, flame surface density, mean volume of turbulent flame regions and turbulent burning velocity were calculated. Flame surface density, turbulent burning velocity and intensity of flame radiation of CO/H2/CO2/O2 flames are larger than those of CH4/air flames while the mean volume of the turbulent flame region, Vf, of CO/H2/CO2/O 2 flames is smaller than that of CH4/air flames. As the H2 mole fraction increases, turbulent burning velocity and intensity of flame radiation for CO/H2/CO2/O2 flame becomes larger while the mean volume of the turbulent flame region becomes smaller. When the ratio of the H2 mole fraction to that of CO is more than 0.5, Vf and ST/SL of CO/H 2/CO2/O2 flames become almost the same. It is presumed that the effect of H2 concentration is dominant for CO/H2/CO2/O2 flame for high H2 mole fractions.
|Published - 2013
|9th Asia-Pacific Conference on Combustion, ASPACC 2013 - Gyeongju, Korea, Republic of
Duration: 2013 May 19 → 2013 May 22
|9th Asia-Pacific Conference on Combustion, ASPACC 2013
|Korea, Republic of
|13/5/19 → 13/5/22