| INTEGRAL COLLISION KERNEL FOR THE GROWTH OF AEROSOL PARTICLES |
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| 引用本文： | Hongyong Xie. INTEGRAL COLLISION KERNEL FOR THE GROWTH OF AEROSOL PARTICLES[J]. 中国颗粒学报, 2005, 3(4): 229-232 |
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| 作者姓名： | Hongyong Xie |
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| 作者单位： | [1]Center for Nanomatenals and Science, Dalian University of Technology, Dalian 116012, P. R. China |
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| 基金项目： | The author is grateful for a research grant from Material Science and Engineering fund of Dalian University of Technology. |
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| 摘 要： | Integral collision kernel is elucidated using experimental results for titania, silica and alumina nanoparticles synthesized by FCVD process, and titania submicron particles synthesized in a tube furnace reactor. The integral collision kernel was obtained from a particle number balance equation by the integration of collision rates from the kinetic theory of dilute gases for the free-molecule regime, from the Smoluchowski theory for the continuum regime, and by a semi-empirical interpolation for the transition regime between the two limiting regimes. Comparisons have been made on particle size and the integral collision kernel, showing that the predicted integral collision kernel agreed well with the experimental results in Knudsen number range from about 1.5 to 20.
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| 关 键 词： | 悬浮粒子 凝结物 积分碰撞 亚微型粒子 浮质过程 |
| 收稿时间： | 2004-12-21 |
| 修稿时间： | 2004-12-212005-05-20 |
INTEGRAL COLLISION KERNEL FOR THE GROWTH OF AEROSOL PARTICLES |
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| Hongyong;Xie. INTEGRAL COLLISION KERNEL FOR THE GROWTH OF AEROSOL PARTICLES[J]. China Particuology, 2005, 3(4): 229-232 |
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| Authors: | Hongyong Xie |
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| Abstract: | Integral collision kernel is elucidated using experimental results for titania, silica and alumina nanoparticles synthesized by FCVD process, and titania submicron particles synthesized in a tube fumace reactor. The integral collision kernel was obtained from a particle number balance equation by the integration of collision rates from the kinetic theory of dilute gases for the free-molecule regime, from the Smoluchowski theory for the continuum regime, and by a semi-empirical interpolation for the transition regime between the two limiting regimes. Comparisons have been made on particle size and the integral collision kernel, showing that the predicted integral collision kernel agreed well with the experimental results in Knudsen number range from about 1.5 to 20. |
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| Keywords: | coagulation integral collision kemel nano and submicron particles aerosol process |
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