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Journal of Mechanical Science and Technology

, Volume 33, Issue 11, pp 5277–5283 | Cite as

Effect of inner wall configurations on the separation efficiency of hydrocyclone

  • Kuk Jin Jung
  • In-Ju Hwang
  • Youn-Jea KimEmail author
Article
  • 5 Downloads

Abstract

The cyclone separator is widely used for separating liquid-gas as well as particle-laden flow through the vortex separation phenomenon. This is a simple principle with wide temperature and pressure range, so it can be used in various industrial fields. So far, many studies have dealt with the case where there is no groove on the inner wall of the hydrocyclone. In this study, the flow characteristics and the particle separation efficiency of the cyclone separator were investigated by changing the inner wall configuration through numerical analysis. The geometry was designed by changing the wall configuration after referring to previous research. The change of wall was ribbing (convex) and slotting (concave) with a helical pattern. The helical parameters were changed, and their results were compared with each other. The working fluid is water, and the solid is an asphalt that was assumed to be spherical. Numerical analysis was performed using ANSYS CFX ver. 18.1. The Reynolds stress turbulence model (RSM) was used, which is suitable for the simulation of swirling turbulent and vorticial flows. The results of this study suggest that the optimal shape of wall surface will improve the fine particle separation technique of the cyclone separator.

Keywords

CFD Hydrocyclone Helical pattern Fine particle 

Nomenclature

D

Diameter of hydrocyclone body

d

Diameter of helical pattern circle

u

x direction velocity

p

Pressure

ρ

Density

μ

Viscosity of carrying fluid

τ

Tensor

up

Particle velocity

xp

Particle position

t

Time

FD

Drag force acting on particle

FB

Buoyancy force acting on particle

FR

Rotation force acting on particle

dp

Particle diameter

ρp

Density of particle

CD

Drag coefficient

Af

Effective surface area of particle

Cd

Drag coefficient uses the Schiller and Naumann

Rep

Reynolds number of particle

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Notes

Acknowledgements

This research was supported by a grant (19IFIP-B089065-06) from the Plant R&D Program funded by the Ministry of Land, Infrastructure and Transport of the Korean Government.

References

  1. [1]
    J. Liu, D. L. Mauzerall and L. W. Horowitz, Evaluating inter-continental transport of fine aerosols: 2. Global health impact, Atmospheric Environment, 43 (28) (2009) 4339–4347.CrossRefGoogle Scholar
  2. [2]
    P. W. Dietz, Collection efficiency of cyclone separators, AIChE Journal, 27 (6) (1981) 888–892.CrossRefGoogle Scholar
  3. [3]
    L. G. M. Vieira, E. A. Barbosa, J. J. R. Damasceno and M. A. S. Barrozo, Performance analysis and design of filtering hydrocyclones, Brazilian Journal of Chemical Engineering, 22 (1) (2005) 143–152.CrossRefGoogle Scholar
  4. [4]
    F. M. Erdal, S. A. Shirazi, O. Shoham and G. E. Kouba, CFD simulation of single-phase and two-phase flow in gasliquid cylinder cyclone separators, Journal of Society of Petroleum Engineering, 2 (1997) 436–446.Google Scholar
  5. [5]
    F. M. Erdal, S. A. Shirazi and O. Shoham, CFD study of bubble carry-under in gas-liquid cylindrical cyclones separators, Journal of Society of Petroleum Engineering, 15 (1998) 217–222.Google Scholar
  6. [6]
    M. Azadi and A. Mohebbi, A CFD study of the effect of cyclone size on its performance parameters, Journal of Hazardous Materials, 182 (1-3) (2010) 835–841.CrossRefGoogle Scholar
  7. [7]
    S. M. Mousavian and A. F. Najafi, Numerical simulations of gas-liquid-solid flows in a hydrocyclone separator, Archive of Applied Mechanics, 79 (5) (2009) 395–409.CrossRefGoogle Scholar
  8. [8]
    Y. Hideto, O. Kouichiro and F. Kunihiro, The effect of a new method of fluid flow control on submicron particle classification in gas-cyclones, Powder Technology, 149 (2005) 139–147.CrossRefGoogle Scholar
  9. [9]
    T. G. Chuah, J. Gimbun and S. Y. Choong, Thomas, A CFD study of the effect of con dimensions on sampling aerocyclones performance and hydrodynamics, Powder Technology, 162 (2006) 222–230.CrossRefGoogle Scholar
  10. [10]
    D. Misiulia, A. G. Andersson and T. S. Lundström, Computational investigation of an industrial cyclone separator with helical-roof inlet, Chemical Engineering & Technology, 38 (8) (2015) 1425–1434.CrossRefGoogle Scholar
  11. [11]
    D. B. Dias, M. Mori and W. P. Martignoni, Boundary condition effects in CFD cyclone simulations, 8th World Congress of Chemical Engineering (WCCE8), Montreal, Canada (2009).Google Scholar
  12. [12]
    J. Y. Kang, J. M. Jin and Y. J. Kim, Improvement of the separation efficiency of multiphase fluids using dual-cyclone separator, The KSFM Journal of Fluid Machinery, 22 (1) (2019) 13–18.CrossRefGoogle Scholar
  13. [13]
    M. D. Slack, R. O. Prasad, A. Bakker and F. Boysan, Advances in cyclone modelling using unstructured grids, Trans. IChemE, 78 (2000) 1098–1104.CrossRefGoogle Scholar
  14. [14]
    B. Zhao, Y. Su and J. Zhang, Simulation of gas flow pattern and separation efficiency in cyclone with conventional single and spiral double inlet configuration, Chemical Engineering Research and Design, 84 (12) (2006) 1158–1165.CrossRefGoogle Scholar
  15. [15]
    ANSYS Inc., CFX User Guide and CFX Theory Guide, Version 18.1 (2018).Google Scholar
  16. [16]
    J. Ouyang, Y. Tan, Y. Li and J. Zhao, Demulsification process of asphalt emulsion in fresh cement-asphalt emulsion paste, Materials and Structures, 48 (12) (2015) 3875–3883.CrossRefGoogle Scholar

Copyright information

© KSME & Springer 2019

Authors and Affiliations

  1. 1.Graduate School of Mechanical EngineeringSungkyunkwan UniversitySuwonKorea
  2. 2.Department of Future Technology and Convergence ResearchKorea Institute of Civil Engineering and Building TechnologyGoyangKorea
  3. 3.School of Mechanical EngineeringSungkyunkwan UniversitySuwonKorea

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