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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Universidade Estadual de Maringá
2012
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=303226535006 |
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- Hydrodynamic analysis of particle collection efficiency: comparing downflow and upflow filtration Alexandre Botari Luiz Di Bernardo Ingeniería CFD analysis direct filtration Mathematical modeling particle collection efficiency Models of the filtration phenomenon describe the mass balance in bed filtration in terms of particle removal mechanisms, and allow for the determination of global particle removal efficiencies. These models are defined in terms of the geometry and characteristic elements of granule collectors, particles and fluid, and also the composition of the balance of forces that act in the particle collector system. This work analyzes particles collection efficiency comparing downflow and upflow direct filtration, taking into account the contribution of the gravitational factor of the settling removal efficiency in future proposal of initial collection efficiency models for upflow filtration. A qualitative analysis is also made of the proposal for the collection efficiency models for particle removal in direct downflow and upflow filtration using a Computational Fluid Dynamics (CFD) tool. This analysis showed a strong influence of gravitational factor in initial collection efficiency (t = 0) of particles, as well as the reasons of their values to be smaller for upflow filtration in comparison with the downflow filtration. 2012 artículo científico 1806-2563 https://www.redalyc.org/articulo.oa?id=303226535006 en http://www.redalyc.org/revista.oa?id=3032 Acta Scientiarum. Technology application/pdf Universidade Estadual de Maringá Acta Scientiarum. Technology (Brasil) Num.2 Vol.34