Drop size measurements in Venturi scrubbers

Alonso, Diego Fernández; Gonçalves, José Antônio Silveira; Azzopardi, B.J.; Coury, José Renato

doi:10.1016/s0009-2509(01)00140-3

Cited by 41 publications

(26 citation statements)

References 17 publications

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“…Sauter mean droplet size can be the other factor affecting droplet dispersion significantly. However, Fernandez Alonso et al [12] have shown that regardless of the injection system, Boll's relation is a good estimation for the Sauter mean size of the droplets at the atomization zone.…”

Section: Peclet Numbermentioning

confidence: 99%

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Experimental and Theoretical Investigation of Droplet Dispersion in Venturi Scrubbers with Axial Liquid Injection

et al. 2009

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Droplet dispersion in a Venturi scrubber with axial liquid injection was investigated both experimentally and theoretically. The main objective of this study was to develop a mathematical model to predict droplet dispersion in a Venturi scrubber with axial liquid injection. The effects of the Peclet number and droplet size distribution on droplet dispersion were studied using the developed model. Sampling of the droplets was carried out, isokinetically, in 16 positions at the end of the throat section. The experimental data were used to find the parameters of the developed model, such as the Peclet number. From the results of this study, it was found that the Peclet number was not constant across the cross section of the scrubber channel. In order to achieve a better agreement between the results of the model and the experimental data, it was required to consider Peclet number variations across the Venturi channel. It was also revealed that the parameter representing the width of the Rosin-Rammler distribution of droplet size could not be considered constant and it was influenced significantly by the operating parameters such as liquid flow rate and gas velocity.

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Section: Peclet Numbermentioning

confidence: 99%

“…Fernandez Alonso et al [12] showed that the Rosin-Rammler distribution function could be adequate for correlating the droplet size distribution of droplets generated from an atomized liquid jet. The volume frequency distribution function of Rosin-Rammler is given as follows:…”

Section: Governing Equationsmentioning

confidence: 99%

Experimental and Theoretical Investigation of Droplet Dispersion in Venturi Scrubbers with Axial Liquid Injection

et al. 2009

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“…Fernandez Alonso et al [15] have suggested the constant value of 2.15 for n RR . Also they concluded that Boll's equation [16] could be applied for accurate calculation of Sauter mean diameter.…”

Section: Governing Equationsmentioning

confidence: 99%

“…The value of c 1 usually was determined by fitting with experimental data [14]. Rosin-Rammler function was applied for considering the size distribution of droplets according to Fernandez Alonso et al study [15]:…”

Section: Governing Equationsmentioning

confidence: 99%

CFD modeling of droplet dispersion in a Venturi scrubber

Ahmadvand

Talaie

2010

Chemical Engineering Journal

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“…The performance of a Venturi scrubber depends on the size (Fernández Alonso et al, 2001;Costa et al, 2003) and spatial distribution of the droplets in its interior. A poor distribution, characterized by the presence of high and low droplet concentration regions, allows the passage of many contaminants without hitting the droplets, decreasing considerably the efficiency of the equipment (Costa, 2002;Gonçalves et al, 2003b;Guerra et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Droplet dispersion angle measurements on a Pease-Antony Venturi scrubber

Puentes

Guerra

Coury

et al. 2012

Braz. J. Chem. Eng.

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-A Pease-Anthony Venturi scrubber is a gas cleaning device that uses liquid, injected in the equipment as jets, to remove contaminants from the gas. The liquid jet is atomized into droplets, which are dispersed throughout the equipment due to the turbulence. The performance of the scrubber is affected by the spatial distribution of the droplets. Although CFD models have been used to predict the droplet dispersion, these models are expensive. Alternatively, the concept of "jet spreading angle" could be used as a simple and quick way to estimate droplet dispersion. The purpose of this paper is to measure the spreading angle of jets transversally injected into the throat of a Venturi scrubber and correlate it with both gas and jet velocities. The throat gas velocities varied between 59 and 74 m/s and the jet velocity between 3.18 and 19.1 m/s. The angles were measured through image analysis, obtained with high velocity photography. The spreading angle was found to be strongly dependent on jet velocity.

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Drop size measurements in Venturi scrubbers

Cited by 41 publications

References 17 publications

Experimental and Theoretical Investigation of Droplet Dispersion in Venturi Scrubbers with Axial Liquid Injection

Experimental and Theoretical Investigation of Droplet Dispersion in Venturi Scrubbers with Axial Liquid Injection

CFD modeling of droplet dispersion in a Venturi scrubber

Droplet dispersion angle measurements on a Pease-Antony Venturi scrubber

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