Volume 1, 2009Progress in Propulsion Physics
|Page(s)||47 - 62|
|Section||Solid Rocket Propulsion|
|Published online||16 September 2011|
Studies on the burning of micro- and nanoaluminum particle clouds in air
An experimental study has been conducted to determine flame propagation velocities in micro- (6 µm) and nanosized (250 nm) aluminum particle clouds for various concentrations in air. The experimental results show faster flame propagation in nanoparticle cloud with respect to the microparticle flame. Maximum flame temperature has been measured using a high-resolution spectrometer operating in the visible range. Analysis of combustion residual shows that nanoparticle combustion is realized via the gaseous phase. A laminar flame model has been proposed based on this observation. Model parameters have been derived by fitting the experimental results.
© Owned by the authors, published by EDP Sciences, 2009