Development of a symmetrical spiral inlet to improve cyclone separator performance

Zhao, Ben; Huang, Shen; Kang, Yanming

doi:10.1016/j.powtec.2004.06.001

Cited by 117 publications

(51 citation statements)

References 11 publications

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“…Starting from the geometry proposed by Patterson and Munz (1989), some modifications of this geometry that were proposed in the literature (Zhao et al, 2004) were added. The first was the creation of a symmetrical tangential inlet by splitting the inlet into two opposite ones, and the second was the substitution of inlet and outlet ducts by volute ones.…”

Section: Computational Grid and Boundary Conditionsmentioning

confidence: 99%

“…The case proposed in Figure 2 was based on Zhao et al (2004), and that proposed in Figure 3 represents a scale-down of an industrial application. For all cases presented in Figures 1, 2 and 3, grids with tetrahedral elements were built using Ansys ICEM CFD 5.0.…”

Section: Computational Grid and Boundary Conditionsmentioning

confidence: 99%

“…Symmetrical inlet section as proposed by Zhao et al (2004) and adapted here to the cyclone of Patterson and Munz (1989). The effect of grid refinement had previously been evaluated in the simulation process.…”

Section: Figurementioning

confidence: 99%

“…The starting point was based on some works available in the literature (Patterson and Munz, 1989;Zhao et al, 2004 andBernardo, 2005). Numerical simulations of gas-solid flow phase were carried out using CFX 5.7.1, a CFD code available on the market.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of cyclone geometry and its influence on performance parameters by computational fluid dynamics (CFD)

Martignoni

Bernardo

Quintani

2007

Braz. J. Chem. Eng.

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-Cyclone models have been used without relevant modifications for more than a century. Most of the attention has been focused on finding new methods to improve performance parameters. Recently, some studies were conducted to improve equipment performance by evaluating geometric effects on projects. In this work, the effect of cyclone geometry was studied through the creation of a symmetrical inlet and a volute scroll outlet section in an experimental cyclone and comparison to an ordinary single tangential inlet. The study was performed for gas-solid flow, based on an experimental study available in the literature, where a conventional cyclone model was used. Numerical experiments were performed by using CFX 5.7.1. The axial and tangential velocity components were evaluated using RSM and LES turbulence models. Results showed that these new designs can improve the cyclone performance parameters significantly and very interesting details were found on cyclone fluid dynamics properties using RSM and LES.

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Section: Computational Grid and Boundary Conditionsmentioning

confidence: 99%

Section: Computational Grid and Boundary Conditionsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of cyclone geometry and its influence on performance parameters by computational fluid dynamics (CFD)

Martignoni

Bernardo

Quintani

2007

Braz. J. Chem. Eng.

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“…Lin et al (2013) designed a high-efficiency wet electrocyclone for removing fine and nanosized particles. Zhao et al (2004Zhao et al ( , 2005 studied the different inlet configurations of a cylinder-on-cone cyclone. Wang et al (2003) designed a novel GLCC capable of separating liquid from a wet gas stream.…”

Section: Introductionmentioning

confidence: 99%

Study and Application of a Cyclone for Removing Amine Droplets from Recycled Hydrogen in a Hydrogenation Unit

Zhang

et al. 2014

Aerosol Air Qual. Res.

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Recycled hydrogen is fed into a hydrogenation unit using a compressor with oil gas, amine droplets, and other hazardous gases at a super-high operating pressure after having been passed through a desulfurization system. This study developed a gas-liquid cyclone for removing amine droplets in recycled hydrogen based on computational fluid dynamics (CFD), an experimental study and industrial application. The results showed that the highest separation efficiency of the gas-liquid cyclone was 94.8% (experiment) and 97% (CFD) under 20°C and atmospheric pressure. Sampling and analysis showed that the highest separation efficiency for industrial application was 99.9% under 50°C and 10.7 MPa. The device purified the recycled hydrogen, and reduced both raw material losses and desulfurizer consumption. The energy consumption of the cycled hydrogen compressor and the pollution discharge of the hydrogenation unit were also reduced.

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The effect of inlet shape on separation performance and flow‐field characteristics in a gas–solid cyclone separator

Wei

Sun

Jiao

et al. 2019

Asia-Pacific J Chem Eng

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The gas-solid separation experiments were conducted to compare separation performance between cyclone separators with different inlet shapes. Besides, the Reynolds stress model was employed to simulate flow field in different cyclones. The results revealed that the cyclone with a trapezoidal inlet could enhance separation efficiency without almost increasing pressure drop. Compared with the conventional rectangular inlet, a trapezoidal inlet had negligible effect on flow field of cyclone's separation space, and it reduced lip flow and upper dust ring of cyclone. In addition, the cyclone with a trapezoidal inlet could improve the inhomogeneous gas flux distribution at the inlet, which was the root reason why secondary flows in cyclone were inhibited and separation efficiency was enhanced.

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Development of a symmetrical spiral inlet to improve cyclone separator performance

Cited by 117 publications

References 11 publications

Evaluation of cyclone geometry and its influence on performance parameters by computational fluid dynamics (CFD)

Evaluation of cyclone geometry and its influence on performance parameters by computational fluid dynamics (CFD)

Study and Application of a Cyclone for Removing Amine Droplets from Recycled Hydrogen in a Hydrogenation Unit

The effect of inlet shape on separation performance and flow‐field characteristics in a gas–solid cyclone separator

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