Abstract
Combustion of aluminium particles was observed with fast tine camera and light chopper techniques. The burning times, appearance of the flame, oxide particle size and oxide shape, including hollow oxide spheres, did not support the diffusion flame theory. An alternative combustion model, which assumes that diffusion through the oxide layer surrounding the metal droplet is the rate-controlling step, gave reasonably good agreement with experiment. Inadequate knowledge about diffusion coefficients in liquid alumina is the principal uncertainty involved. Metal boiling causes expansion of the oxide shell and accounts for the prevalence of hollow oxide spheres in the combustion products.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
