Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Study on Electrohydrodynamic Analysis of Cylinder Type ESP

원통형 전기집진기의 전기유체역학적 해석에 관한 연구

  • 조용수 (부산수산대학교 환경공학과) ;
  • 여석준 (부산수산대학교 환경공학과)
  • Published : 1996.11.01
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Abstract

The main purpose of this study is to investigate the collection efficiency characteristics of a cylindrical ESP. To do that, it is necessary to analyze the electric field, gas flow field, and mechanism of particle movement by numerical simulation based on EHD model. For a gas flow field, Navier-Stokes equation involving the electric source term was solved by SIMPLE algorithm. In case of the electric field, the current continuity and electric field equations were solved by S.O.R. method. The analysis of particle movement was performed on the basis of PSI-CELL model from the Lagrangian viewpoint. The results showed that the influence on the gas flow field by the electric field is almost negligible in a cylindrical ESP. The particle drift velocity $V_P$ toward the collection surface is increased continuously by the electrostatic force due to the rise of particle charge as the particle is moving to the flow direction and the particle size becomes larger. The collection efficiency is to quitely higher with the increase of applied voltage for the same particle size, while becomes smaller as the inlet velocity is increased.

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References

  1. Int. Chem. Eng. v.29 no.2 The effect of particle size on the efficiency of separation by an electrostatic precipitator Borgwardt,V.
  2. Paper, No. 69-4, APCA Meeting Cooperman,P.
  3. Trans. ASME, J. Fluids Eng. v.104 Review numerical models for dilute gas-particle flow Crowe,C.T.
  4. Journal of Fluids Engineering The particle-source-in cell (PSI-CELL) model for gas-droplet flows Crowe,C.T.;M.P.Sharma;D.E.Stock
  5. Ann. Phys. v.68 Deutsch,W.
  6. IEEE Transactions on Industry Applications v.ⅠA-22 no.1 The analysis of corona quenching in cylindrical precipitators using charge simulation Elmoursi,A.A.;P.Castle
  7. Aerosol technology Hinds,W.C.
  8. J. of Fluid Mech. v.127 An experimental study of the electrohyrodynamic flow in electrostatic precipitators Leonard,G.L.
  9. IEEE Transations on Industry Applications v.29 no.6 Monte carlo solution of axisymmetric potential problems Matthew,N.O.;Sadiku
  10. Journal of Applied Physics v.48 no.6 A mathematical model for calculating electrical conditions in wire-duct electrostatic precipitation devices McDonald,J.R.;W.B.Smith;H.W.SpencerⅢ;L.E.Sparks
  11. Electrostatic precipitation Ogtesy,S.;G.B.Nichols
  12. Numerical heat transfer and fluid flow Patankar,S.V.
  13. Air Pollution Control Electrostatic precipitation Robinson,M.;W.S.Transsed(ed.)
  14. IEEE Transations on Industry Applications v.27 no.1 Numerical computation of corona space charge and Ⅴ-Ⅰcharacteristic in DC electrostatic precipitators Saverio,C.;F.Mauro
  15. Journal of Colloid and Interface Science v.127 no.2 Electrostatic precipitation of charged from a tubulent flow between coaxial cylinders Shapiro,M.;A.Oron;C.Guthinger
  16. Aerosol Science and Technology v.4 The fluid mechanics of electrostatic precipitators Shaughnessy,E.J.;J.H.Davidson;J.C.Hay
  17. Aerosol Sci. & Tech. v.19 Deposition of particles on a Single cylinder by a coulombic force and direct interception Wu,Z.;I.Collbeck;G.Zhang
  18. J. of Fluid Mech. v.108 no.1 EHD in an electrostatic precipitator Yamamoto,T.
  19. J. Fluid Mech. v.108 Electrohydrodynamics in an electrostatic precipitator Yamamoto,T.;H.R.Velkoff