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International Journal of Energetic Materials and Chemical Propulsion

Выходит 6 номеров в год

ISSN Печать: 2150-766X

ISSN Онлайн: 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

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ACOUSTIC EMISSION MEASUREMENTS FOR CHARACTERIZING HYDROCARBON/OXYGEN DIFFUSION FLAME BEHAVIOR

Том 6, Выпуск 6, 2007, pp. 691-712
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v6.i6.30
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Краткое описание

An investigation was performed to characterize the behavior of a hydrocarbon/oxygen diffusion flame by acoustic emission measurements. Experiments were performed in a horizontally mounted, 2-D axisymmetric stainless steel chamber with a single shear coaxial injector and an adjustable graphite nozzle at the chamber exit for maintaining a constant chamber pressure. Methane gas flowed through the annular injector port while oxygen exited the center port. Ignition of the diffusion flame was achieved by a C2H6/O2 torch. Four acoustic transducers placed circumferentially around the diffusion flame at various locations were used in combination with a Pyrex viewing window to observe and classify the diffusion flame as either an anchored flame to the injector, a detached flame with small amplitudes of oscillation, or a near-blowout flame with large amplitudes of oscillation. Results showed that there was a noticeable difference in diffusion flame acoustic emission spectra based on flame stability behavior. Anchored diffusion flames showed no significant trace of acoustic emission at fuel flow rates below 0.65 g/s. Stable, small oscillating detached flames showed minimal amplitude acoustic levels, whereas near-blowout diffusion flames covered a wide range of acoustic frequencies. As the diffusion flame exhibited greater instability behavior, more frequency hits (a measure of the number of times an acoustic signal exceeded a preset threshold) at higher amplitudes were generated until eventual flame blowout occurred. Any increase in the (O/F)mass resulted in an increase in acoustic frequency amplitude and absolute energy. Narrower frequency ranges at higher amplitude values also accompanied this increase in (O/F)mass.

ЦИТИРОВАНО В
  1. Eckenrode Lucas, Ianuzzi Makayla, Litzinger Morgan, Nunamaker Lucas, Crist Jordan, Moore Jeffrey D., Risha Grant A., Design, Fabrication, and Testing of a Non-Premixed Methane/Oxygen Diffusion Flame Burner, AIAA Propulsion and Energy 2019 Forum, 2019. Crossref

  2. Ianuzzi Makayla L., Hollingshead Joshua M., Moore Jeffrey D., Risha Grant A., Effect of Impingement Angle on Flame Stability in a Non-Premixed Methane/Oxygen Diffusion Flame Burner, AIAA Propulsion and Energy 2020 Forum, 2020. Crossref

  3. Ianuzzi Makayla L., Hollingshead Joshua, Moore Jeffrey D., Risha Grant A., Varying Secondary Flow Area in a Single Coaxial Injector for a Methane/Oxygen Diffusion Flame Burner, AIAA Propulsion and Energy 2021 Forum, 2021. Crossref

  4. Ianuzzi M. L. L., Eckenrode L. M., Curfman C. S., Moore J. D., Risha G. A., Effect of Flow Parameters and Injection Flow Area on Non-Premixed Methane/Oxygen Diffusion Flame Stability, Combustion Science and Technology, 194, 3, 2022. Crossref

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