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Dynamic behavior of coal char particle combustion

✍ Scribed by K. Reményi; V. Kertész; L. Vörös; F. Horváth

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
816 KB
Volume
76
Category
Article
ISSN
0010-2180

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✦ Synopsis

A mathematical model is developed that represents a first approximation of the dynamics of the coal char combustion. The model determines a range of particle sizes and gas temperatures where oscillation can occur and propagating spherical waves surround the particle. It is also possible to compute the frequency and amplitude of the oscillations and the wavelength and the velocity of the propagating spherical waves around the particle. However, the role of the oxygen concentration is unclear. The oscillatory range of particle sizes and gas temperatures and the frequencies, amplitudes, and wavelengths determined from the model are tested against the small amount of published experimental data and the laser-pulse holography investigations of Rem6nyi, Horvhth, and V6r6s.

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