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International Journal of Energetic Materials and Chemical Propulsion

Erscheint 6 Ausgaben pro Jahr

ISSN Druckformat: 2150-766X

ISSN Online: 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

PROPELLANT COMBUSTION DIAGNOSTICS VIA MULTICHANNEL ABSORPTION SPECTROSCOPY

Volumen 4, Ausgabe 1-6, 1997, pp. 807-824
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v4.i1-6.760
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ABSTRAKT

Multichannel absorption spectroscopy has been developed and used to non-intrusively probe the hostile environment of solid propellant combustion. A windowed pressure vessel, broadband light source, and a spectrometer-array detector system are the major components of the experiment. Gas phase absorption spectra obtained during the steady-state combustion of double-base and nitramine propellants can be analyzed to determine temperature and absolute concentration profiles. The analysis requires only fundamental spectroscopic data incorporated into the differential absorption law.
Ultraviolet-visible sensitive multichannel detectors have been used to obtain absorption spectra of NO, OH, NH, and CN during the combustion of solid propellants and their ingredients. Focus has been primarily on the propellant dark zone with simultaneous tracking capability for NO and OH. Vibrationally resolved transitions in the Α2Σ-Χ2Π electronic system of NO allow determination of temperature and absolute NO concentration. Rotationally resolved transitions in the Α2Σ-Χ2Π(0,0) vibrational band system of OH allow determination of OH concentration and luminous flame temperature. An infrared-sensitive multichannel detector has been used to obtain rotational-vibrational absorption spectra for CO, HCN, H2O, CO2, N2O, and CH4 in the dark-zone region. Substantial HCN concentrations occur in the dark zone of nitramine propellants, but not in the dark zone of double base propellants. Dark-zone temperatures derived from fitting the infrared absorption spectra of HCN and H2O are in good agreement with those obtained from fitting NO in the ultraviolet region. Concentrations of these infrared active species have been determined.
Multichannel absorption spectroscopy, along with other experimental diagnostic techniques such as microprobe mass spectrometry, FT-IR spectroscopy and use of thermocouples, have greatly expanded the propellant database for quantitative gas-phase composition and temperature profiles. This information is presently being used to refine reduced reaction mechanisms for propellant dark-zone chemistry as well as to validate models of solid propellant combustion.

REFERENZIERT VON
  1. Anderson William R., Meagher Nancy E., Vanderhoff John A., Dark zones of solid propellant flames: Critically assessed datasets, quantitative model comparison, and detailed chemical analysis, Combustion and Flame, 158, 7, 2011. Crossref

  2. Zarei Ali Reza, Mardi Kobra , A SIMPLE AND SELECTIVE SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF ETHYL CENTRALITE AS STABILIZER IN DOUBLE BASE SOLID PROPELLANTS: A COMPARATIVE STUDY WITH HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY , International Journal of Energetic Materials and Chemical Propulsion, 21, 4, 2022. Crossref

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