Aluminum Flame Temperature Measurements in Solid Propellant Combustion
- 1 March 2014
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 68 (3) , 362-366
Abstract
The temperature in an aluminized propellant is determined as a function of height and plume depth from diatomic AlO and thermal emission spectra. Higher in the plume, 305 and 508 mm from the burning surface, measured AlO emission spectra show an average temperature with 1σ errors of 2980 ± 80 K. Lower in the plume, 152 mm from the burning surface, an average AlO emission temperature of 2450 ± 100 K is inferred. The thermal emission analysis yields higher temperatures when using constant emissivity. Particle size effects along the plume are investigated using wavelength-dependent emissivity models.Keywords
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