Publication de 6 numéros par an
ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678
Indexed in
ACTIVE BORON DISPERSION AND IGNITION IN GEL DROPLET
RÉSUMÉ
This study addresses the combustion behavior of micro-pyrotechnic clusters of boron suspended in kerosene-based gel fuels. Boron particles are combined in a low-oxidizer pyrotechnic mixture forming clusters of about 100 µm that are dispersed in the gel droplet. During the combustion of the gel droplet, the organic phase evaporates from the droplet surface, forming a porous layer of dry particles. The pyrotechnic clusters are designed to ignite in the "dry window" after the end of the kerosene evaporation and before boron oxidation bringing the boron particle to combustion temperature. The boron pyrotechnic mixture at the outer side is activated, dispersing hot boron particles while the droplet is still surrounded by the flame of the organic phase, which continues to evaporate beneath the layer. Operation in this timeframe can allow the pyrotechnic reaction to heat and disperse the boron particles, solving some of the problems that prevent the use of boron as an efficient fuel.
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Solomon Yair, Grinstein Dan, Natan Benveniste, Dispersion of Boron Particles from a Burning Gel Droplet, Journal of Propulsion and Power, 34, 6, 2018. Crossref
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Ojha Pawan Kumar, Karmakar Srinibas, Boron for liquid fuel Engines-A review on synthesis, dispersion stability in liquid fuel, and combustion aspects, Progress in Aerospace Sciences, 100, 2018. Crossref
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Ojha Pawan Kumar, Prabhudeva P., Karmakar Srinibas, Maurya Dalton, Sivaramakrishna Gullapalli, Combustion characteristics of JP-10 droplet loaded with Sub-micron boron particles, Experimental Thermal and Fluid Science, 109, 2019. Crossref
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Zhang Chi, Wang Qin, Tang Liying, Chen Fei, Enhanced Reactivity and Compound Mechanism of Mg/B Composite Powders Prepared by Cryomilling, Materials, 15, 13, 2022. Crossref