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International Journal of Energetic Materials and Chemical Propulsion

Publicou 6 edições por ano

ISSN Imprimir: 2150-766X

ISSN On-line: 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

COMBUSTION BEHAVIOR AND FLAME STRUCTURE OF NITROMETHANE

Volume 6, Edição 5, 2007, pp. 551-573
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v6.i5.20
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RESUMO

Better knowledge of nitromethane (CH3NO2) flame structure and combustion behavior is desirable for a number of possible propulsion applications, both earth-based and extraterrestrial. When considered for rocket applications, nitromethane monopropellant is more energetic and less toxic than some current storable monopropellants such as hydrazine, though shock sensitivity questions still remain. In this investigation, the combustion behavior of nitromethane was studied using a variety of experimental and theoretical techniques over a broad range of pressures from 2.5 to 170 MPa. Its burning rates at different pressures were measured in quartz tubes and at a free surface, and found to fall into 3 regimes. At low pressures (4 to 6 MPa), temperature profile measurements using fine-wire thermocouples showed a thick thermal wave in the liquid subsurface, extremely thin flame zone, and final flame temperature of near 2,100 K, significantly less than the equilibrium value of 2,460 K. A model was formulated that included both gas-phase and condensed-phase processes. Using the detailed reaction mechanism for nitromethane developed by Yetter and Rabitz coupled with the CHEMKIN code, flame structure was calculated and compared to observations and measured values. Significant differences were found; however, with the modification of kinetic parameters in two elementary reactions, the measured temperature trace was duplicated.

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