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

The Korean Society of Mechanical Engineers (대한기계학회)
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A New Model for the Analysis of Non-Spherical Particle Growth

새로운 비구형 입자 성장 해석 모델

  • 정재인 (서울대학교 대학원 기계공학과) ;
  • 최만수 (서울대학교 기계항공공학부, 서울대학교 정밀기계설계공동연구소, 나노 입자제어기술 연구단)
  • Published : 2000.07.01
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Abstract

A simple model for describing the non-spherical particle growth phenomena has been developed. In this model, we solve simultaneously particle volume and surface area conservation sectional equations that consider particles' non-sphericity. From the correlation between two conserved properties of sections, we can predict the evolution of the aggregates' morphology. This model was compared with a simple monodisperse-assumed model and more rigorous two-dimensional sectional model. For comparison, formation and growth of silica particles have been simulated in a constant temperature reactor environment. This new model showed good agreement with the detailed two-dimensional sectional model in total number concentration and primary particle size. The present model successfully predicted particle size distribution and morphology without costing very heavy computation load and memory needed for the analysis of two dimensional aerosol dynamics.

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References

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