Prediction of hydrodynamic characteristics of a venturi scrubber by using CFD simulation

Bal, Manisha; Meikap, B.C.

doi:10.1016/j.sajce.2017.10.006

Cited by 12 publications

(6 citation statements)

References 20 publications

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“…64.58% of S existed in reduction slag in the phase of CuS and 22.86% of S existed in smoke in the phase of CuS. To capture such volatile solid pollutants, spray soot or spray is usually used to collect such soot, and such as Venturi tube (Bal and Meikap, 2017). However, it should be noted that due to the entry of sulfur-containing substances in copper slag, the corrosion of scrubber needs attention (Sarkar et al, 2007).…”

Section: Reaction Analysis In Copper Slagmentioning

confidence: 99%

Element Distribution and Migration Behavior in the Copper Slag Reduction and Separation Process

et al. 2021

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Copper slag is a solid pollutant with high recyclability. Reduction and separation are regarded as effective disposal methods. However, during the melting process, the separation and migration behavior of elements in the copper slag is complicated. Thus, the formation of pollutants cannot be controlled merely by optimizing the operation parameters. The elemental distribution and migration behavior are discussed in this work. In reduction experiments, the copper slag smelting liquid was divided into three layers: a reduction slag layer, a reactive boundary layer, and an iron ingot layer. Reduction slag and ingot iron were on the top and bottom of the liquid, respectively. Residual carbon oozed at the interface. C can react with reducible “O” atoms, which exist in 2FeO·SiO2, Fe3O4, and CuO. Meanwhile, CO was generated and overflowed from the liquid layer. After reduction by C or CO, metallic iron and copper were produced and migrated to the iron ingot layer. In the liquid, S gradually diffused into the upper layer. Some of the ZnO and CuS spilled from the liquid into the flume. After reduction, CaO·SiO2 was generated and moved to the upper layer.

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Section: Reaction Analysis In Copper Slagmentioning

confidence: 99%

Element Distribution and Migration Behavior in the Copper Slag Reduction and Separation Process

et al. 2021

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“…Ananthanarayanan and Viswanathan (1999) [XXX] Developed a CFD model to study the effect of nozzle arrangement on liquid distribution in a Pease-Anthony VS. They found that the distance between nozzles exceeds 10% it forms non uniformity in liquid distribution.…”

Section: III Droplet Distributionmentioning

confidence: 99%

A Review on Parameters Affecting the Collection Efficiency of Venturi Scrubber

Kamble¹

2019

JMCMS

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The venturi scrubber has been used as air pollution controlling device. These scrubbers are promising device for cleaning the contaminated gases. It is found in the literature that the performance of venturi scrubber (i.e. collection efficiency), is significantly influenced by droplet distribution, pressure drop, disintegration of liquid, droplet sizes and injection methods. Effect of submergence height, multi-stage injection, position of the orifice, diameter of orifice, throat length and angle of convergence and divergence of venturi scrubber is found scarce and these parameters are affecting collection efficiency drastically. Therefore, it is necessary to study their effect to improve the performance of self-priming venturi scrubber. This article is the review of numerical and experimental study of the performance in venturi scrubber.

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“…The geometric parameters include the throat diameter, length of mixing chamber, and trajectory of the secondary fluid inlet [2][3][4][5][6]. Nozzle exit velocity, throat velocity, thermodynamic properties of the working fluid, mass flow rate, Reynolds number, and inlet pressure are some of the operating variables that affect the performance of the mixer [2,3,7,8,9]. With regards to the nozzle design, the emphasis has been on the nozzle length-todiameter ratio, the number of the nozzle, the axial position of the nozzle relative to the throat (NXP), the trajectory, convergent/divergent angle, and the nozzle throat diameter [4,10,11].…”

Section: Introductionmentioning

confidence: 99%

Changes in Primary Nozzle Contours and Ejector Performance- A Numerical Study

Chukwunonso,

Humphrey,

Chukwunenye

et al. 2024

IJASE

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This study numerically investigated the changes in the behaviour of fluid flowing through an ejector in response to modifications in the nozzle design. The investigation involved constant mass flow of the primary stream through four nozzles (PN1-PN4) formed with a combination of straight lines and sine functions. The area of the nozzle streamwise section varied with each contour. The PN4 nozzle refers to the reference nozzle, and its contours were straight lines only. The velocity decay, turbulence, entrainment, and mixing data were used to measure the flow behaviour. The decay rate were increased by ≈ 1.7%, entrainment by≈ 8%, and the maximum turbulence intensity by 16% in the PN3 nozzle. Only a 0.5% increase in decay rate was recorded in PN1 and PN2.The PN3 nozzle had the lowest streamwise area of the four nozzles and performed best per entrainment and mixing. This was because the increase in the velocity of the primary stream at the nozzle trailing edge due to the reduced streamwise area, improved the momentum transfer to the secondary stream and its entrainment into the primary stream.

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Prediction of hydrodynamic characteristics of a venturi scrubber by using CFD simulation

Cited by 12 publications

References 20 publications

Element Distribution and Migration Behavior in the Copper Slag Reduction and Separation Process

Element Distribution and Migration Behavior in the Copper Slag Reduction and Separation Process

A Review on Parameters Affecting the Collection Efficiency of Venturi Scrubber

Changes in Primary Nozzle Contours and Ejector Performance- A Numerical Study

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