Soot Particle Size Distributions in a Well-Stirred Reactor/Plug Flow Reactor.
Soot Particle Size Distributions in a Well-Stirred
Reactor/Plug Flow Reactor.
Manzello, S. L.; Lenhert, D. B.; Yozgatligil, A.;
Donovan, M. T.; Mulholland, G. W.; Zachariah, M. R.;
Volume 31; Part 1;
Combustion Institute, Symposium (International) on
Combustion, 31st. Proceedings. Volume 31. Part 1.
August 6-11, 2006, Heidelberg, Germany, 675-683 pp,
Sponsor:Department of Defense, Washington, DC
soot; particle size distribution; equations;
experiments; polycyclic aromatic hydrocarbon
A well-stirred reactor (WSR) followed by a plug flow
reactor (PFR) is being used to study polycyclic aromatic
hydrocarbon (PAH) growth and soot inception. Soot size
distributions were measured using a dilution probe
followed by a nano-differential mobility analyzer
(Nano-DMA). A rapid insertion probe was fabricated to
thermophoretically collect particles from the reactor
for transmission electron microscopy (TEM) imaging.
Results are presented on the effect of equivalence ratio
on the soot size distributions obtained for fixed
dilution ratio, the effect of dilution ratio on the soot
size distributions obtained for fixed equivalence ratio,
and the effect of temperature on the soot size
distributions obtained for fixed equivalence ratio. In
addition to particle sizing measurements, gas samples
were analyzed by a gas chromatograph to
determine the concentration of gaseous species in the
PFR thought to be important in soot formation. Our soot
size distribution measurements demonstrate that the
mixing conditions in the flame zone affect whether or
not a nucleation mode was detected in the size