Measurement of the Optical Extinction Coefficient of Combustion-Generated Aerosol. Technical Note.
Measurement of the Optical Extinction Coefficient of
Combustion-Generated Aerosol. Technical Note.
Widmann, J. F.; Duchez, J.; Yang, J. C.; Conny, J. M.;
Mulholland, G. W.
Journal of Aerosol Science, Vol. 36, No. 2, 283-289,
aerosols; extinction; combustion; soot; smoke; carbon
This note describes measurements of the mass-specific
extinction coefficient, \'01s, of carbonaceous aerosol
produced during hydrocarbon combustion. Measurements of
\'01s were obtained by laser extinction at \'02 = 632
nm. The aerosol was generated using a laminar diffusion
flame, and the mass-specific extinction coefficient
determined as a function of the global equivalence
ratio, \'03. The elemental carbon content of the aerosol
was also determined with respect to \'03.A relationship
was developed between the elemental carbon/total carbon
(EC/TC) ratio and \'01s. A simple method of producing
laboratory aerosol with controlled EC/TC ratio is also