Particle size influence on the aluminum combustion dynamics in 1-m<sup>3</sup> chamber
نویسندگان
چکیده
Introduction. The results of a standard study the explosibility aluminum air suspensions (AAS) can contribute to development AAS combustion physics. In particular, complex information about polydispersity and low explosion limit values in 1-m 3 chamber made it possible determine maximum particle size explosive fraction polydisperse sample d * m,t ≈ 40–50 µm (Poletaev, 2014). present work, relationship is established between dynamics persion. dispersity particles described by mass-average its ( 50 ), contrast works other researchers who use all ). Initial data. Known parameters 15 samples studied was used. continuous distribution functions necessary for calculating were represented Rosin – Rammler distributions filling gaps discrete data sieve analysis samples. Combustion dynamics. turbulent suspension burn-up rate U b . calculated using formula (Kumar, 1992) intended gas-air mixtures substituting into this formula. Results discussion. A plot versus shown. average value (≈ 33 µm·m/s) constant range 10 ≤ 35 µm. latter typical product normal velocity laminar flame (Ben Moussa, 2017) indicates similarity effect dispersion on AAS. Conclusions an determined patterns mechanisms propagation
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ژورنال
عنوان ژورنال: ????????????????????????
سال: 2022
ISSN: ['0869-7493', '2587-6201']
DOI: https://doi.org/10.22227/0869-7493.2022.31.05.6-13