Communication Dans Un Congrès Année : 2024

Detailed description of the combustion of an aluminum particle

Résumé

This study presents new quantitative information on the previously neglected initial and final phases occurring during aluminum particle combustion. The study shows that the initial alumina lobe, which originates from the protection layer’s melting, is gradually consumed. The speed at which this lobe regresses depends on the accessibility of gaseous aluminum close to the drop and is delayed in nitrogen environments. Furthermore, the research provides a new outlook on the particle’s end-of-life, which begins with the covering of the particle by alumina and/or oxynitrides. Also, for this phase, the presence of nitrogen has a significant influence on triggering this covering, which then leads to spinning and jetting. This study details the origin of these two phenomena, in particular jetting, and provides elements of quantification concerning their implications in complex systems involving particle suspensions.
Fichier non déposé

Dates et versions

hal-04666707 , version 1 (02-08-2024)

Identifiants

  • HAL Id : hal-04666707 , version 1

Citer

Fabien Halter, Stany Gallier, Hugo Keck, Edward. L. Dreizin, Christian Chauveau. Detailed description of the combustion of an aluminum particle. 14th International Workshop on Combustion and Propulsion (IWCP), Politechnico di Milano, Jul 2024, Pescara, Italy. ⟨hal-04666707⟩
102 Consultations
0 Téléchargements

Partager

More