The Investigation of Flame Speed and Temperature in Flames of Aluminum Micro and Nano-Particle Clouds

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In this paper, the effects of heat losses and particle size and on the flame speed and temperature profile in micro and nano dust combustion have been studied. The present work extended previous results by bridging the theories of the non-adiabatic stationary dust flame and the propagation of premixed flames in one-dimensional channels accounting for heat-losses to particles and environment. The results showed that the effects of heat losses played an important role in flame regimes and flame transition. Furthermore, it was found that convective heat losses significantly decreased the velocity of flame propagation and temperature in post-flame zone. Comparisons between the analytical solutions and the experiment results showed a good agreement.
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Dust Combustion; Heat Loss; Nano Particle; Flame Speed; Non-Adiabatic Flame

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