Measurement of infrared radiation emitted by the flame of a vegetation fire

An experimental study has been carried out on the radiation emitted in the infrared by a flame produced by the combustion of vegetation (vine branches) in a square tray of size 50 × 50 cm. Measurements have been performed with an FTIR spectrometer and an IR camera on the corresponding flame with cha...

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Bibliographic Details
Published inInternational journal of thermal sciences Vol. 49; no. 3; pp. 555 - 562
Main Authors Parent, G., Acem, Z., Lechêne, S., Boulet, P.
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Masson SAS 01.03.2010
Elsevier
Subjects
Applied sciences
Combustion. Flame
Emission
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fire
Flame
Infrared radiation
Miscellaneous
Theoretical studies. Data and constants. Metering
Emission
Infrared radiation
Fire
Flame
Branching
Fourier transformation
Infrared camera
Soot
Combustion
Calibration
Experimental study
Spectrometer
Infrared spectrometry
Vegetation
Height
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Summary:An experimental study has been carried out on the radiation emitted in the infrared by a flame produced by the combustion of vegetation (vine branches) in a square tray of size 50 × 50 cm. Measurements have been performed with an FTIR spectrometer and an IR camera on the corresponding flame with characteristic height between 50 cm and 1 m. A specific device has been built in order to allow the simultaneous acquisition of spectra in the range between [1000–6000 cm −1] and pictures in selected bands of the infrared. Pictures with a camera in the visible range have been taken at the same time. A preliminary calibration using a reference emitter has been done in order to evaluate the emitted radiation quantitatively. By comparing the emission by flames with the one of this reference surface, the radiation emitted by a vegetation flame has been observed and analysed as a function of the wavenumber. The emission is observed to be predominant in a range around 2300 cm −1, due to CO 2 production, and strong emission bands related to H 2O are also observed. The experimental tools, FTIR spectrometer and IR camera, both in good agreement, show a weak emission due to soots, at least at this scale of relatively small flames.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1290-0729
1778-4166
DOI:10.1016/j.ijthermalsci.2009.08.006