Numerical research on vortex tube separator for special vehicle engine inlet air filter

Dziubak, Tadeusz; Bąkała, Leszek; Karczewski, M.; Tomaszewski, Michał

doi:10.1016/j.seppur.2019.116463

Cited by 27 publications

(13 citation statements)

References 38 publications

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“…The initial boundary conditions used for the flow analysis are shown in Figure 6. Detailed assumptions of the model and its detailed description are discussed in [29].…”

Section: Scope Subject and Conditions Of Cyclone Numerical Testsmentioning

confidence: 99%

“…Smaller diameter cyclones are used for bioaerosol sampling, drug-delivery systems and also for vacuum cleaners. Cyclones with internal diameters of 40 mm and smaller ones are used in air intake filtration systems for combustion engines in tracked vehicles, working and agricultural machines, operated most often in conditions of high dust concentration in the air, the value of which often exceeds 1 g/m 3 [29][30][31][32].…”

mentioning

confidence: 99%

“…Practical use of this relationship requires knowledge of n and d p parameters. The exact and comprehensive methodology for determining and the values of n and d p parameters for the particle size composition of the PTC-D test dust is presented in [29].…”

mentioning

confidence: 99%

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Computational and Experimental Analysis of Axial Flow Cyclone Used for Intake Air Filtration in Internal Combustion Engines

Dziubak

Bąkała

2021

Energies

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The properties and advantages of axial flow cyclones are presented; several dozen of them are already widely used as the first stage of inlet air filtration in internal combustion motor vehicle engines, work machines and helicopters. The necessity to conduct research on cyclones to improve separation efficiency has been demonstrated. Using the commercial engineering software Ansys Fluent, at a constant inlet velocity of 10 m/s, an assessment was made on the effect of the separation length and inlet diameter of the outlet tube on changes in separation efficiency in axial flow cyclone. Each of the examined parameters was variable while maintaining other factors at a constant level. In the numerical calculations, test dust was used, which was the equivalent of AC fine dust, the particle size composition of which was taken into account using the Rosin–Rammler model. Increase in the separation efficiency was observed with an increase in the separation length and a decrease in the diameter of the cyclone inlet tube. For the cyclone model with an increased separation length and reduced diameter of the inlet pipe, numerical tests of separation efficiency and pressure drop were performed for various velocities at cyclone inlet in the range of 2.5–15 m/s. The obtained characteristics of modified axial flow cyclone were experimentally verified on a laboratory stand during cyclone prototype tests, the model of which was printed using the additive manufacturing technique.

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“…The initial boundary conditions used for the flow analysis are shown in Figure 6. Detailed assumptions of the model and its detailed description are discussed in [29].…”

Section: Scope Subject and Conditions Of Cyclone Numerical Testsmentioning

confidence: 99%

mentioning

confidence: 99%

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Computational and Experimental Analysis of Axial Flow Cyclone Used for Intake Air Filtration in Internal Combustion Engines

Dziubak

Bąkała

2021

Energies

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“…Centrifugal separators [11][12][13][14] are advanced types of gas cleaning equipment in the industry. However, these separators are complex in design, have high pressure losses, and have low separation efficiency for fine particles (less than ten microns).…”

Section: Introductionmentioning

confidence: 99%

Pressure Drop and Particle Collection Efficiency of Multivortex Separator

Мадышев

Харьков

Bolotnov

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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The purification of gas emissions from dispersed particles is presently one of the mandatory measures to protect the air basin for most industrial enterprises. The authors developed a device for gas cleaning with separation elements in the form of a profile with rectangular vertical slots. Such a design creates numerous small vortices, which leads to an increase in collection efficiency. The paper aims to numerically determine the effect of the design and operating conditions on the particle deposition efficiency and the pressure drop of the multivortex separator. The height of the rectangular slots varied from 55 to 94 mm. In addition, the size of the dispersed particles changed from 1 to 15 μm in diameter. The results show that a decrease of resistance coefficient is observed with an increase in the height of the rectangular slot in the separation element. The results indicate that separation elements should be designed with a small height of rectangular slots and located in the lower part to collect fine particles in the multivortex separator efficiently.

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“…For example, the multicyclone separator can effectively remove larger particles (diameter is greater than 15-35 μm). [1][2][3][4] Then it has been extensively used as a primary filter for trucks, working machines, and military vehicles operating under higher dust environment. 5 And for the gas turbine intake unit at annual sandstorms area, the frequent replacing fibrous filter screen costs a lot of resources.…”

Section: Introductionmentioning

confidence: 99%

The multi‐objective optimization of an axial cyclone separator in the gas turbine

Xing

Zhang

et al. 2021

Intl J of Energy Research

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Herein the multi-objective optimization of an axial cyclone separator is performed to enhance the overall performance with different velocities. And the separation efficiency and pressure drop are expected as the objective functions. In this paper, the difference value between internal and external blade outlet angles is regarded as one of the parameters to optimize. The regression expressions, which are obtained by Box-Behnken Design and the two-fluid model, are used in Nondominated Sorting Genetic Algorithm II to maximize separation efficiency and minimize pressure drop. It is found that the separation efficiency has a peak value with the rise of inlet velocity, and the response degrees of the internal angle, difference of the two angles, and blade number is disparate at different velocities. The pressure drops of the optimal axial cyclone tubes are smaller than the initial ones, but the separation efficiency is almost the same. Meanwhile, the accuracies of the optimization and numerical results are verified by the experiments. For the samples in 3, 5, and 7 m/s, pressure drop can be reduced by 24.1%, 22.7%, and 34.3% respectively. The simulation results indicate that the radial pressure difference and swirl number have been reduced. Besides, the optimal designs have more stable and even near wall particle distribution after multi-objective optimization.

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Numerical research on vortex tube separator for special vehicle engine inlet air filter

Cited by 27 publications

References 38 publications

Computational and Experimental Analysis of Axial Flow Cyclone Used for Intake Air Filtration in Internal Combustion Engines

Computational and Experimental Analysis of Axial Flow Cyclone Used for Intake Air Filtration in Internal Combustion Engines

Pressure Drop and Particle Collection Efficiency of Multivortex Separator

The multi‐objective optimization of an axial cyclone separator in the gas turbine

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