Light Scattering Characteristics and Size Distribution of Smoke and Nuisance Aerosols.
Light Scattering Characteristics and Size Distribution
of Smoke and Nuisance Aerosols.
Weinert, D. W.; Cleary, T. G.; Mulholland, G. W.;
Beever, P. F.
Fire Safety Science. Proceedings. Seventh (7th)
International Symposium. International Association for
Fire Safety Science (IAFSS). June 16-21, 2003,
Worcester, MA, Intl. Assoc. for Fire Safety Science,
Boston, MA, Evans, D. D., Editor(s), 209-220 pp, 2003.
fire research; fire detection; light scattering; size
distribution; smoke; aerosols; sampling
This paper presents the differential mass scattering
cross section of various non-flaming and flaming fire
generated smoke aerosols as well as nuisance aerosols
created in the Fire Emulator/Detector Evaluator. These
measurements have been determined for two linear
polarizations and the scattering angle range of 5 deg to
135 deg at a wavelength of 632.8 nm. Small diameter
particles have been separated from large particles using
the forward scattering information. Discrimination of
soot generated by flaming fuels from both smoke aerosols
generated by non-flaming fires and nuisance aerosols is
demonstrated by the ratio of forward (45 deg) to
backward scattering (135 deg), the polarization ratio,
and dependence on scattering parameter.