- Author
-
Axelbaum, R. L.
|
Law, C. K.
|
Flower, W. L.
- Title
- Effects of Diffusion Stratification and Oxygen Addition on Soot Formation in a Counterflow Diffusion Flame.
- Coporate
- California Univ., Davis
Sandia National Labs., Livermore, CA
- Sponsor
- Air Force Office of Scientific Research, Bolling AFB, Washington, DC
Department of Energy, Washington, DC
- Contract
- GRANT-85-0147
- Book or Conf
- Combustion Institute/Canadian and Western States Section. Spring Meeting, 1986. April 27-30, 1986.,
Banff, Alberta, Canada,
1-23 p.,
1986
- Keywords
-
diffusion flames
- Abstract
- Effects of diffusional stratification and oxygen addition on soot formation in a counterflow diffusion flame were experimentally studied. Soot volume fraction distributions were obtained by laser extinction measurements, and temperature distributions were obtained with a thermocouple. Special care was extended to ensure that the flame temperature was either minimally affected or its effect isolated when the system parameters were varied. Results obtained with helium, neon, argon, and krypton addition to the fuel clearly demonstrate the importance of concentration modification through diffusional stratification for inerts added to the fuel side of the counterflow diffusion flame. Results for oxygen addition to the fuel contribute useful quantitative data uncomplicated by the simultaneous changes in either the flame temperature and/or the reactant concentrations. The temperature-adjustment methodology incorporated in this study to investigate oxygen addition to the fuel holds potential for further applications in related studies.