Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 20    No. 12    December 2010

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Experiment and simulation of diffusion of micron-particle in
porous ceramic vessel
LI Cai-ting(李彩亭)1, 2, ZHANG Wei(张 巍)1, 2, WEI Xian-xun(魏先勋)1, 2, GAO Hong-liang(高宏亮)1, 2,
WEN Qing-bo(文青波)1, 2, FAN Xiao-pe

1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;
2. Key Laboratory of Environmental Biology and Pollution Control of Ministry of Education,
Hunan University, Changsha 410082, China;
3. Guangzhou Hanhua Architects & Engineers Ltd., Guangzhou 510655, China

Abstract:The general behavior of micron-particles in the inner domain of porous ceramic vessel was simulated by computational fluid dynamics software in terms of sampling experimental data. The results show that there is an optimum porosity of 0.32 to get a higher efficiency and lower pressure drop during filtration. According to the results of simulation and experiment, it is evident that lower inlet velocity can maintain lower pressure drop and obtain higher collection efficiency and inlet concentration also has a crucial influence on the collection efficiency. The collection efficiency of equipment increases significantly with the increase of inlet concentration when the inlet concentration is less than 6.3 g/m3, but it gradually tends to be stable in the range of 97.3%−99.7% when the inlet concentration is over this concentration.

 

Key words: micron particle; ceramic vessel; pressure drop; porous medium

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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