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Influence of collision conditions between aerosol flows of liquid droplets and solid particles typical for wet vortex dust collectors

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  • Islamova, A.G.
  • Shlegel, N.E.
  • Strizhak, P.A.

Abstract

Various industrial devices and systems make use of collisions of droplets with solid particles in aerosol flows. The characteristics of these collisions are usually predicted adopting the same approaches as for binary collisions of a liquid droplet with a solid particle. However, the conditions of such binary collisions are different from those in the spray composition. There are very few experimental findings for sprays. The purpose of this research was to experimentally determine the characteristics of interaction of droplets with particles of slurry fuel components in sprays. High-speed three-dimensional video recording made it possible to identify conditions when liquid droplets break up, and droplets and particles agglomerate to form slurry droplets. Droplet-particle interaction regimes were identified. Collective effects in a cascade of droplet-particle interactions were recognized. The frequency of collision regime occurrence was determined, considering the recorded collective effects in sprays. The characteristics of droplet-particle collisions in sprays were compared with those of binary interactions. Conditions were determined when the findings on binary collisions can be adapted to different systems with multi-phase sprays. The findings obtained promote research and development in the field of secondary atomization of composite fuel droplets.

Suggested Citation

  • Islamova, A.G. & Shlegel, N.E. & Strizhak, P.A., 2024. "Influence of collision conditions between aerosol flows of liquid droplets and solid particles typical for wet vortex dust collectors," Energy, Elsevier, vol. 298(C).
    • Handle: RePEc:eee:energy:v:298:y:2024:i:c:s0360544224011460
    DOI: 10.1016/j.energy.2024.131373
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    References listed on IDEAS

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