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International Journal of Energetic Materials and Chemical Propulsion

Publicado 6 números por año

ISSN Imprimir: 2150-766X

ISSN En Línea: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

Indexed in

THE IGNITION AND COMBUSTION OF BORON DUST SYSTEMS

Volumen 2, Edición 1-6, 1993, pp. 455-468
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v2.i1-6.280
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SINOPSIS

Experimental and theoretical studies of the boron ignition and combustion in the dry oxygen-containing medium for the various disperse system were carried out. Analysis of the ignition regimes was realized in supposition that two-stage process takes place on the surface of boron particles. The first stage is exothermic reaction which runs with accumulation of the product (B2O3) which slows the further process. The second stage is endothermic reaction but it goes with the removing of the product (for boron it is B2O3). These two stages are correlated but the ignition mechanism may be alternative: either as a result of action of the both stages, as it considered, or a result of action the first stage only. Accordingly, for the various ignition mechanisms different dependences of the ignition temperature and delay time on parameters of the system and ambient were observed. Critical conditions and ignition delay time for the both mechanisms were presented in analytical form. Comparison of theoretical and experimental data was carried out for the dust clouds.
The quasi-steady problem of boron dust clouds bulk combustion has been solved. This problem takes account of two specific factors. It is the slowing-down action of the oxidizer depletion and intensification of the process by the self-heating of the dust cloud. Analytical expression for the dust cloud combustion time was obtained for the isothermic case. It is shown that for the diffusion combustion regime the role of the self-heating factor is small, the oxidizer depletion slows the process of particle burning in dust clouds as compared with the burning of the single particle. For kinetic combustion regime a self-heating of the dust cloud compensate the role of the oxidizer depletion and accelerate the process as compared with the burning of the single particle. The experimental data presented in this work confirm the theory.

CITADO POR
  1. Zolotko A. N., Vovchuk Ya. I., Poletayev N. I., Florko A. V., Al'tman I. S., Synthesis of nanooxides in two-phase laminar flames, Combustion, Explosion, and Shock Waves, 32, 3, 1996. Crossref

  2. Zolotko A. N., Vovchuk Ya. I., Shevchuk V. G., Poletaev N. I., Ignition and Combustion of Dust-Gas Suspensions, Combustion, Explosion and Shock Waves, 41, 6, 2005. Crossref

  3. Moiseeva K. M., Krainov A. Yu., Study of Critical Conditions of Spark Ignition and Burning Rate of a Boron Powder Suspension in a Propane–Air Mixture, Combustion, Explosion, and Shock Waves, 58, 3, 2022. Crossref

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