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Atomization and Sprays

Published 12 issues per year

ISSN Print: 1044-5110

ISSN Online: 1936-2684

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: 1.2 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: 1.8 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: 0.3 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: 0.00095 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: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

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INFLUENCE OF REACTOR PRESSURE ON TWIN-FLUID ATOMIZATION: BASIC INVESTIGATIONS ON BURNER DESIGN FOR HIGH-PRESSURE ENTRAINED FLOW GASIFIER

Volume 25, Issue 12, 2015, pp. 1081-1105
DOI: 10.1615/AtomizSpr.2015011558
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ABSTRACT

The conversion of low-grade fossil and biogenic energy resources to a high-quality chemical energy carrier (syngas) in a high-pressure entrained flow gasification process opens a wide spectrum for energy efficient fuel conversion. Typically, twin-fluid atomizers are used to generate fuel spray in high-pressure entrained flow gasification. The quality of the syngas produced by entrained flow gasifiers depends strongly on drop size distribution generated by the burner nozzle. In consequence fundamental knowledge concerning the influence of operating parameters, especially ambient pressure on spray quality, is mandatory. Atomization experiments were performed using an external-mixing twin-fluid atomizer and varying reactor pressure up to 21 bar. Radial SMD profiles were measured using a phase Doppler analyzer. Additionally, primary jet breakup was investigated using a highspeed camera. To qualitatively prove the PDA results a photo-optical shadowgraphy system was used to estimate the size range of the droplets. The experiments showed that keeping the We number constant while varying ambient pressure leads to an increase of SMD with increasing ambient pressure. Keeping the gas velocity constant resulted in constant SMD values nearly independent from ambient pressure. The conducted analysis of experimental data shows that the typically used dimensionless parameter, the We number, for prediction of droplet size is not favorable for correlations to be valid in a wide range of reactor pressures. Finally the results were used to generate a semi-empirical model for prediction of SMD, based on a simplified theoretical energy consideration.

CITED BY
  1. Volz Melanie, Habisreuther Peter, Zarzalis Nikolaos, Correlation for the Sauter Mean Diameter of a Prefilmer Airblast Atomizer at Varying Operating Conditions, Chemie Ingenieur Technik, 89, 3, 2017. Crossref

  2. Müller T., Sänger A., Habisreuther P., Jakobs T., Trimis D., Kolb T., Zarzalis N., Simulation of the primary breakup of a high-viscosity liquid jet by a coaxial annular gas flow, International Journal of Multiphase Flow, 87, 2016. Crossref

  3. Jampolski Leon, Sänger Alexander, Jakobs Tobias, Guthausen Gisela, Kolb Thomas, Willenbacher Norbert, Improving the processability of coke water slurries for entrained flow gasification, Fuel, 185, 2016. Crossref

  4. Fleck S., Santo U., Hotz C., Jakobs T., Eckel G., Mancini M., Weber R., Kolb T., Entrained flow gasification Part 1: Gasification of glycol in an atmospheric-pressure experimental rig, Fuel, 217, 2018. Crossref

  5. Chaussonnet G., Braun S., Dauch T., Keller M., Sänger A., Jakobs T., Koch R., Kolb T., Bauer H.-J., Toward the development of a virtual spray test-rig using the Smoothed Particle Hydrodynamics method, Computers & Fluids, 180, 2019. Crossref

  6. Chaussonnet G., Dauch T., Braun S., Keller M., Kaden J., Schwitzke C., Jakobs T., Koch R., Bauer H. -J., Application of the SPH Method to Predict Primary Breakup in Complex Geometries, in High Performance Computing in Science and Engineering ' 18, 2019. Crossref

  7. Wachter Simon, Jakobs Tobias, Kolb Thomas, Towards system pressure scaling of gas assisted coaxial burner nozzles – An empirical model, Applications in Energy and Combustion Science, 5, 2021. Crossref

  8. Wachter Simon, Jakobs Tobias, Kolb Thomas, Comparison of Central Jet and Annular Sheet Atomizers at Identical Gas Momentum Flows, Industrial & Engineering Chemistry Research, 60, 30, 2021. Crossref

  9. Broumand Mohsen, Thomson Murray J., Yun Sean, Hong Zekai, Spray Characterization of a Preheated Bio-Oil Surrogate at Elevated Pressures, Journal of Engineering for Gas Turbines and Power, 144, 11, 2022. Crossref

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