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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v5.i1-6.760
pages 733-741

DETERMINATION OF THE TEMPERATURE OF CONDENSED PARTICLES WITHIN FLAME BY THEIR RADIATION

Igor S. Altman
nstitute of Combustion & Advanced Technologies, Odessa State University, Dvoryanskaya 2, Odessa, 65026, Ukraine
Donggeun Lee
National CRI Center for Nano Particle Control, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151 -742, Korea
Yuriy L. Shoshin
Department of Physics, State University, Odessa, Ukraine, 270100
Jae Dong Chung
National CRI Center for Nano Particle Control, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151 -742, Korea
Mansoo Choi
National CRI Center for Nano Particle Control, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151 -742, Korea

RÉSUMÉ

This work is devoted to discussion of the principle possibility of conducting metal-containing flame diagnostics by the flame's thermal radiation. It is shown that the temperature usually obtained by the multi-color method is the incorrect temperature of oxide particles generated within flame. This is due to the strong spectral dependence of the emissivity of the emitting oxide particles. A detailed study of radiation of the silica particles within flame irradiated by a laser is carried out. It is revealed that the change of particle temperature within flame may be obtained without the measurement of an exact value. The result of measurement is used for the estimation of the energy accommodation at high temperature and is found to be 5.5×10−3. The method of restoration of the temperature distribution of particles within flame by radiation spectrum is developed. This method is applied for the restoration of the oxide particle temperature distribution within Al dust flame. The width of temperature distribution found is about 1000 K.


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