Laser Measurements of Soot and CO Production in Time-Varying, Hydrocarbon Diffusion Flames.
Laser Measurements of Soot and CO Production in
Time-Varying, Hydrocarbon Diffusion Flames.
Shaddix, C. R.; Everest, D. A.; Smyth, K. C.
University of California, Berkeley. Toxic Toxic
Combustion Byproducts. 4th International Congress.
ABSTRACTS ONLY. June 5-7, 1995, Berkeley, CA, 59 pp,
combustion; soot; carbon monoxide; diffusion flames;
Most combustion systems of practical interest involve
hydrocarbon diffusion flames, in which chemical
processes are strongly coupled to fluid mechanical
mixing of the reactants through heat release. In
complex flowfields, such as turbulent flames, many
combinations of residence times, temperature histories,
local stoichiometries, and strain rates exist which are
not accessible in steady, laminar diffusion flames. One
might anticipate that chemistry-flowfield interactions
will have a dramatic impact whenever chemical reaction
times are comparable to or slower than mixing rates. In
particular, the rates of soot mass growth as well as of
soot and carbon monoxide oxidation are relatively slow,
and thus the production and emission of soot and CO
should be strongly sensitive to the complex,
time-varying flowfields present in flickering flames.