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| Titel |
Modelling the NO emissions from wildfires at the source level |
| VerfasserIn |
Y. Pérez-Ramirez, P.-A. Santoni, N. Darabiha |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 14, no. 5 ; Nr. 14, no. 5 (2014-05-20), S.1169-1183 |
| Datensatznummer |
250118440
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| Publikation (Nr.) |
 copernicus.org/nhess-14-1169-2014.pdf |
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| Zusammenfassung |
| There is a growing interest to characterize fire plumes in order to control
air quality during wildfire episodes and to estimate the carbon and ozone
balance of fire emissions. A numerical approach has been used to study the
mechanisms of NO formation at the source level in wildfires given that NO
plays an important role in the formation of ground-level ozone. The major
reaction mechanisms involved in NO chemistry have been identified using
reaction path analysis. Accordingly, a two-step global kinetic scheme in the
gas phase has been proposed herein to account for the volatile fuel-bound
nitrogen (fuel-N) conversion to NO, considering that the volatile fraction of
fuel-N is released as NH3. Data from simulations using the perfectly stirred
reactor (PSR) code from
CHEMKIN-II package with a detailed kinetic mechanism
(GDF-Kin® 3.0) have been used to calibrate
and evaluate the global model under typical wildfire conditions in terms of
the composition of the degradation gases of vegetation, the equivalence
ratio, the range of temperatures and the residence time. |
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