Experimental Investigation of Radiation Emitted by Optically Thin to Optically Thick Wildland Flames
Joint Authors
Parent, G.
Porterie, B.
Acem, Z.
Boulet, P.
Kaiss, A.
Picard, C.
Billaud, Y.
Pizzo, Y.
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-07
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
A series of outdoor experiments were conducted in a fire tunnel to measure the emission of infrared radiation from wildland flames, using a FTIR spectrometer combined with a multispectral camera.
Flames of different sizes were produced by the combustion of vegetation sets close to wildland fuel beds, using wood shavings and kermes oak shrubs as fuels.
The nongray radiation of the gas-soot mixture was clearly observed from the infrared emitted intensities.
It was found that the flame resulting from the combustion of the 0.50 m long fuel bed, with a near-zero soot emission, may be considered as optically thin and that the increase in bed length, from 1 to 4 m, led to an increase in flame thickness, and therefore, in flame emission with contributions from both soot and gases.
A further analysis of the emission was conducted in order to evaluate effective flame properties (i.e., emissivity, extinction coefficient, and temperature).
The observation of emission spectra suggests thermal nonequilibrium between soot particles and gas species that can be attributed to the presence of relatively cold soot and hot gases within the flame.
American Psychological Association (APA)
Boulet, P.& Parent, G.& Acem, Z.& Kaiss, A.& Billaud, Y.& Porterie, B.…[et al.]. 2011. Experimental Investigation of Radiation Emitted by Optically Thin to Optically Thick Wildland Flames. Journal of Combustion،Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-448659
Modern Language Association (MLA)
Boulet, P.…[et al.]. Experimental Investigation of Radiation Emitted by Optically Thin to Optically Thick Wildland Flames. Journal of Combustion No. 2011 (2011), pp.1-8.
https://search.emarefa.net/detail/BIM-448659
American Medical Association (AMA)
Boulet, P.& Parent, G.& Acem, Z.& Kaiss, A.& Billaud, Y.& Porterie, B.…[et al.]. Experimental Investigation of Radiation Emitted by Optically Thin to Optically Thick Wildland Flames. Journal of Combustion. 2011. Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-448659
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448659