A New Model for the Analysis of Non-Spherical Particle Growth

- Journal title : Transactions of the Korean Society of Mechanical Engineers B
- Volume 24, Issue 7, 2000, pp.1020-1027
- Publisher : The Korean Society of Mechanical Engineers
- DOI : 10.22634/KSME-B.2000.24.7.1020

Title & Authors

A New Model for the Analysis of Non-Spherical Particle Growth

Jeong, Jae-In; Choi, Man-Soo;

Jeong, Jae-In; Choi, Man-Soo;

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.

Keywords

Sintering;Sectional Method;Surface Fractal Dimension;

Language

Korean

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