Dynamics of behavior of fine particulate matter in pulverized coal combustion

GENG Jun; LIU Zhaohui; ZHANG Fenghao; ZHENG Chuguang

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Dynamics of behavior of fine particulate matter in pulverized coal combustion

更新时间：2026-03-26

- Dynamics of behavior of fine particulate matter in pulverized coal combustion
- CIESC Journal Vol. 57, Issue 2, (2006)
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- Online First：25 February 2006，
  
  Published：2006
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GENG Jun, LIU Zhaohui, ZHANG Fenghao, et al. Dynamics of behavior of fine particulate matter in pulverized coal combustion[J]. CIESC Journal, 2006, 57(2).
DOI：

GENG Jun, LIU Zhaohui, ZHANG Fenghao, et al. Dynamics of behavior of fine particulate matter in pulverized coal combustion[J]. CIESC Journal, 2006, 57(2). DOI：

摘要

基于矩方法将燃煤生成的典型多分散性颗粒系统分为粗颗粒和细颗粒两个模态，构造了较完整的颗粒物迁移过程的计算模型.在考虑细颗粒自身的布朗碰撞凝并过程、粗颗粒自身的非均相凝结过程以外，还重点考虑了细颗粒向粗颗粒表面的扩散，即粗颗粒对细颗粒的捕集过程.以此为基础，对典型煤燃烧环境中细颗粒的数密度分布变化规律进行了预报与分析.

Abstract

Based on the concept of the moment method

the poly-dispersed particulate matter (PM) generated during pulverized coal combustion was partitioned into fine-mode and coarse-mode. A set of computation models for describing the behavior of particle size distribution (PSD) evolution was then developed

which considered the effects of the Brownian coagulation of fine-mode

the heterogeneous condensation on the surface of coarse-mode.The influence of capture of fine-mode particles on the surface of coarse-mode particles was specially investigated.The models were then used to make prediction and analysis of the PSD evolution of fine PM in typical coal combustion environment.

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