Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Experimental Study on Electrical Agglomeration of Liquid Particles in an Alternating Electric Field

AC 전기장내 하전 액체 입자의 응집에 관한 실험적 연구

  • Ji, Jun-Ho (Dept.of Mechanical Engineering, Graduate School of Yonsei University) ;
  • Hwang, Jung-Ho (Dept.of Mechanical Engineering, Yonsei University) ;
  • Bae, Gwi-Nam (Earth Environment Research Center, Korea Institute of Science and Technology) ;
  • Kim, Yong-Gin (-Department of Thermal, Fluid & Environment Engineering, KIMM)
  • 지준호 (연세대학교 대학원 기계공학과) ;
  • 황정호 (연세대학교 기계공학과) ;
  • 배귀남 (한국과학기술연구원 지구환경연구센터) ;
  • 김용진 (한국기계연구원 열유체환경연구부)
  • Published : 2001.03.01
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Abstract

Experiments were carried out on agglomeration of bipolarly charged particles in an alternating current electric field. Laboratory-scale setup was built and experiments were conducted at atmospheric condition. DOS(Di-octyl Sebacate) particles with 100% purity were generated by an atomizer. The particles were branched into two, each of which passed through a wire-to-plate type charging section where a positive or a negative DC high voltage was applied and was charged positively or negatively. These bipolarly charged particles together passed through an agglomeration section where an $\pm$20kV AC power was applied between two plates. The resident time in the agglomeration section was adjusted as l sec. Particle sampling was made by a cascade impactor (MOUDI). The effect of agglomeration system on the reduction ratio of particles below l ㎛ was 42∼45%. Effect of AC frequency on the particle size distribution was found insignificant.

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References

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