Atomization of promising multicomponent fuel droplets by their collisions

Ya Solomatin, N. E. Shlegel, P. A. Strizhak

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The relevance of the study is due to the necessity to intensify the secondary atomization of fuel droplets by their collisions with each other. The indispensable conditions for sustainable implementation of each of four collision regimes (coalescence, bouncing, separation and disruption) have been established. The experiments were carried out by varying the group of governing parameters in wide ranges: velocity of each droplet (0.5–5 m/s), its dimensions (0.1–5 mm) and angles of attack (0–90°), density (900–1150 kg/m3), viscosity (0.0001–0.5 Pa∙s), surface tension (0.01–0.25 N/m), component composition of fuels (slurries and emulsions), degree of solid particle fineness (40–140 µm), and initial temperature (20–80 °C). The ranges of the main parameters in the dimensional and dimensionless coordinate systems providing conditions for intense droplet disruption have been defined. The most valuable experimental results are the determined conditions for a multiple increase in the number of child-droplets.

Original languageEnglish
Article number115751
JournalFuel
Volume255
DOIs
Publication statusPublished - 1 Nov 2019

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Keywords

  • Child-droplets
  • Collisions
  • Droplets
  • Fuel slurries and emulsions
  • Interaction regime maps
  • Secondary atomization

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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