Infrared temperature measurement of burning droplet

Olivier Ravel; Nicolas Naudin; Olivier Adam; Jean Francois Virepinte; Jean A. Farre; Gerard Lavergne

doi:10.1117/12.274774

23 May 1997 Infrared temperature measurement of burning droplet

Olivier Ravel, Nicolas Naudin, Olivier Adam, Jean Francois Virepinte, Jean A. Farre, Gerard Lavergne

Proceedings Volume 3108, Combustion Diagnostics; (1997) https://doi.org/10.1117/12.274774
Event: Environmental Sensing III, 1997, Munich, Germany

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.

Citation Download Citation

Olivier Ravel, Nicolas Naudin, Olivier Adam, Jean Francois Virepinte, Jean A. Farre, and Gerard Lavergne "Infrared temperature measurement of burning droplet", Proc. SPIE 3108, Combustion Diagnostics, (23 May 1997); https://doi.org/10.1117/12.274774

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