Experimental and numerical study of fence effects on dust emission into atmosphere from open storage piles
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The results obtained from the research on the behaviour of fences (solid and porous) in the protection against particulated material emission to the atmosphere from open storage piles, are presented. This research was carried out through computational fluid dynamics (CFD) simulation by software Ansys CFX-10.0 in 3D, with K-epsilon being considered in the turbulence model. The efficiency of the use of porous fences as a protection against the wind flow, which interacts with an open storage pile, is shown. The use of these fences (when porosity is ɛ=30%) allows the reduction of wind flow velocity which interacts with the pile in comparison with the case of no use of fences (when porosity is 100%). In addition, the use of porous fences makes the velocity vortex, which is formed between the solid fence (ɛ=0%) and the pile, disappear, reducing the particle emission to the atmosphere by 78%.
Key wordsopen storage pile air pollution particle emission wind erosion porous fence computational fluid dynamics
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- PORT TRAFFIC STADISTICS [EB/OL]. http://www.puertos.es/en/estadisticas/index.html. 2008.
- TORNO S. Dust emission in open storage piles [D]. Oviedo University, Ed. Ediuno, 2008: 1–382. (in Spanish)Google Scholar
- BILLMAN B J, ARYA S P S. Windbreak effectiveness for storage-pile fugitive dust control: A wind tunnel study, EPA/600/ S3-85/059 [R]. United Stated Environmental Protection Agency, Research and Development, 1985.Google Scholar
- ANSYS Inc.. ANSYS CFX [EB/OL]. URL: http://www.ansys.com/products/cfx. 2008.
- STUNDER B, ARYA S. Windbreak effectiveness for storage pile fugitive dust control: A wind tunnel study [J]. Journal of Air Pollution Control Association, 1988, 38: 135–143.Google Scholar
- COLEMAN H W, STEELE W G. Experimentation and uncertainty analysis for engineers [M]. New York: John Wiley & Sons Inc, 1988.Google Scholar
- ANSYS CFX-Solver [M]. Release 10.0: Theory. Flow in porous media, 2008: 65–67.Google Scholar
- ANSYS ICEMCFD 10.0 [M]. Tutorial Manual, Tetra Meshing, 2008: 309–310.Google Scholar
- ANSYS CFX-Solver [M]. Release 10.0: Particle Transport Theory Lagrangian Tracking Implementation, 2008: 174.Google Scholar
- US EPA, Update of Fugitive Dust Emissions Factors In AP-42 Section 11.2-Wind Erosion [R]. MRI No. 8985-K, Midwest Research Institute, Kansas City, MO, 1988.Google Scholar
- MULESKI G E. Coal Yard Wind Erosion Measurement [R]. Midwest Research Institute, Kansas City, MO, 1985.Google Scholar