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Proceedings Paper

Infrared temperature measurement of burning droplet
Author(s): Olivier Ravel; Nicolas Naudin; Olivier Adam; Jean Francois Virepinte; Jean A. Farre; Gerard Lavergne
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Paper Abstract

This paper describes the IR optical system technic used for droplet surface temperature measurements in combustion. The experimental set up is composed of two off axis parabolic mirrors, a detector and an electronic data acquisition and processing unit. Droplets with 200 micrometers diameters and velocity about 5m/s are investigated. In order to study the feasibility of the droplet temperature measurement during combustion process, the ethanol flame spectral emission has been measured with an IR spectrometer. For these operating conditions, we could draw the apparent droplet temperature along the droplet stream. These results show that in all cases, the apparent droplet temperature has an asymptotic behavior along the stream. The real droplets temperature can be obtained by a precise estimate of all thermal fluxes.

Paper Details

Date Published: 23 May 1997
PDF: 10 pages
Proc. SPIE 3108, Combustion Diagnostics, (23 May 1997); doi: 10.1117/12.274774
Show Author Affiliations
Olivier Ravel, CERT-ONERA and Ecole Superieure de l'Aeronautique et de l'Espace (France)
Nicolas Naudin, CERT-ONERA and Ecole Superieure de l'Aeronautique et de l'Espace (France)
Olivier Adam, CERT-ONERA (France)
Jean Francois Virepinte, CERT-ONERA (France)
Jean A. Farre, CERT-ONERA and Ecole Superieure de l'Aeronautique et de l'Espace (France)
Gerard Lavergne, CERT-ONERA (France)

Published in SPIE Proceedings Vol. 3108:
Combustion Diagnostics
Maurus Tacke; Winfried Stricker, Editor(s)

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