Integral collision kernel for the growth of aerosol particles--颗粒学报PARTICUOLOGY

Xie, H. (2005). Integral collision kernel for the growth of aerosol particles. China Particuology, 3(4), 229-232. https://doi.org/10.1016/S1672-2515(07)60192-4

Integral collision kernel for the growth of aerosol particles

Hongyong Xie ^*

Center for Nanomaterials and Science, Dalian University of Technology, Dalian 116012, P. R. China

10.1016/S1672-2515(07)60192-4

Volume 3, Issue 4, August 2005, Pages 229-232

Received 21 December 2004, Accepted 20 May 2005, Available online 14 December 2007.

E-mail: hyxie@163.com

Highlights

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 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.

Graphical abstract

Keywords

coagulation; integral collision kernel; nano and submicron particles; aerosol process

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