Measurement of Soot Extinction Coefficients.
Measurement of Soot Extinction Coefficients.
(160 K)
Widmann, J. F.; Yang, J. C.; Mulholland, G. W.; Hamins,
A.
Fire Safety Science. Proceedings. Seventh (7th)
International Symposium. International Association for
Fire Safety Science (IAFSS). POSTER ABSTRACTS. June
16-21, 2003, Worcester, MA, Intl. Assoc. for Fire Safety
Science, Boston, MA, Evans, D. D., Editor(s), 1186-1186
pp, 2003.
Keywords:
fire research; soot; fire models; extinction
Abstract:
An experimental apparatus used to obtain soot extinction
coefficients in the infrared portion of the
electromagnetic spectrum will be presented. Numerous
experimental measurements of soot extinction
coefficients have been previously obtained at visible
wavelengths. However, such measurements have not been
reported at infrared wavelengths relevant to radiation
transport in fires (approximately 2 mm to 5 mm). There
is a need for such data to quantify accurately the
effect of combustion generated particulates on the
transport of infrared radiation in fire scenarios, and
in particular for the development of fire dynamics
models.
Building and Fire Research Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899