Experiment and simulation of diffusion of micron-particle in
porous ceramic vessel
porous ceramic vessel
(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)
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