Experimental research of liquid droplets colliding with solid particles in a gaseous medium

Tkachenko, P.P.; Shlegel, N.E.; Стрижак, П. А.

doi:10.1016/j.cherd.2021.10.025

Cited by 11 publications

(4 citation statements)

References 37 publications

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“…The experiments [35,50] also showed that the droplet-particle size ratio has a decisive effect on the collision regime. An assumption was made that the size of a droplet has a significant effect on the outcomes of its interaction with a particle at a constant ratio of their sizes.…”

Section: Collisions Of Liquid Droplets With Solid Particlesmentioning

confidence: 93%

“…Known limitations of using coal-water slurries with and without petrochemicals [17,26,47] can be minimized by using an approach implying separate injection of components into combustion chambers [50]. In this case, it is necessary to determine the threshold conditions of the coalescence of liquid droplets with each other and the agglomeration of droplets with the solid particles of composite fuels.…”

Section: Collision Regime Maps For Liquid Droplets and Solid Particlesmentioning

confidence: 99%

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Interaction between Droplets and Particles as Oil–Water Slurry Components

et al. 2022

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The characteristics of the collisions of droplets with the surfaces of particles and substrates of promising oil–water slurry components (oil, water and coal) were experimentally studied. Particles of coals of different ranks with significantly varying surface wettability were used. The following regimes of droplet–particle collisions were identified: agglomeration, stretching separation and stretching separation with child droplets. The main characteristics of resulting child droplets were calculated. Droplet–particle interaction regime maps in the B = f(We) coordinates were constructed. Equations to describe the boundaries of transitions between the droplet–particle interaction regimes (B = nWek) were obtained. The calculated approximation coefficients make it possible to predict threshold shifts in transition boundaries between the collision regimes for different fuel mixture components. Differences in the characteristics of secondary atomization of droplets interacting with particles were established. Guidelines were provided on applying the research findings to the development of technologies of composite liquid fuel droplet generation in combustion chambers with the separate injection of liquid and solid components, as well as technologies of secondary atomization of fuel droplets producing fine aerosol.

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Section: Collisions Of Liquid Droplets With Solid Particlesmentioning

confidence: 93%

Section: Collision Regime Maps For Liquid Droplets and Solid Particlesmentioning

confidence: 99%

Interaction between Droplets and Particles as Oil–Water Slurry Components

et al. 2022

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“…They identified three regimes: full coating, partial coating, and disintegration. To the best knowledge of the present author, so far there is only one publication discussing moving droplets impacting moving particles with heat transfer [28]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

“…In Ref. [28] the effect of droplet temperature was considered. The authors revealed that with the growth of droplet temperature, the separation regime zone decreased from 1 to 0.75 relative to the linear interaction parameter.…”

Section: Introductionmentioning

confidence: 99%