Wind tunnel modeling of atmospheric emissions from agricultural burning

Influence of operating configuration on flame structure and particle emission factor for a spreading-type fire

B. M. Jenkins, I. M. Kennedy, S. Q. Turn, R. B. Williams, S. G. Hall, S. V. Teague, D. P Y Chang, O. G. Raabe

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Agricultural burning is a significant source of atmospheric pollutants throughout the world and has lately been subject to increased regulation in North America and Europe. A combustion wind tunnel having multiple operating configurations was developed to simulate field burning conditions and to provide direct measurement of emission factors. Sensitivity to operating configuration was determined for total suspended particulate matter (TSP) emissions and flame structure. TSP emission factor varied from 0.505 to 0.727% of fuel mass as a result of controlled changes to the inlet flow velocity and turbulence characteristics and to ventilation through the fuel bed. Flame structure was examined through measurements of local temperatures, gas concentrations, and soot volume, the latter obtained by laser-light extinction. Although the range in TSP emission factor was not large, wind speed appeared to be the dominant parameter affecting the emission of particles. Results of this study will be used to determine operating protocols for future tests investigating criteria and toxic emissions from agricultural burning.

Original languageEnglish (US)
Pages (from-to)1763-1775
Number of pages13
JournalEnvironmental Science and Technology
Volume27
Issue number9
StatePublished - 1993

Fingerprint

suspended particulate matter
wind tunnel
Wind tunnels
Particulate Matter
Fires
modeling
soot
Soot
Light extinction
flow velocity
Inlet flow
ventilation
Poisons
atmospheric pollution
combustion
wind velocity
laser
turbulence
extinction
Flow velocity

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Wind tunnel modeling of atmospheric emissions from agricultural burning : Influence of operating configuration on flame structure and particle emission factor for a spreading-type fire. / Jenkins, B. M.; Kennedy, I. M.; Turn, S. Q.; Williams, R. B.; Hall, S. G.; Teague, S. V.; Chang, D. P Y; Raabe, O. G.

In: Environmental Science and Technology, Vol. 27, No. 9, 1993, p. 1763-1775.

Research output: Contribution to journalArticle

Jenkins, B. M. ; Kennedy, I. M. ; Turn, S. Q. ; Williams, R. B. ; Hall, S. G. ; Teague, S. V. ; Chang, D. P Y ; Raabe, O. G. / Wind tunnel modeling of atmospheric emissions from agricultural burning : Influence of operating configuration on flame structure and particle emission factor for a spreading-type fire. In: Environmental Science and Technology. 1993 ; Vol. 27, No. 9. pp. 1763-1775.
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