Simulación en CFD del proceso de mezcla en un tanque de almacenamiento de crudo de gran escala con agitadores de entrada lateral
Keywords:
Agitadores de entrada lateral, mezcla, tanque de almacenamiento, dinámica computacional de fluidos
Abstract
En este artículo se presenta el estudio de la distribución del flujo en un tanque de almacenamiento de crudo de 36.5 m de diámetro. El tanque está equipado con dos agitadores mecánicos de entrada lateral ubicados a 90° y 45° de ángulo de montaje. Se emplea la dinámica computacional de fluidos (CFD) para simular las condiciones del tanque a 7.7 m de altura de llenado. Adicionalmente, se realiza el análisis del tiempo de homogenización de dos crudos de diferentes propiedades para el caso de los agitadores a 45°. Se emplea el modelo de dos fases (Volume of fluid, VOF) para el proceso de mezclado, la rotación de los agitadores se simula con múltiples marcos de referencia (MFR) y se resuelve el fenómeno utilizando la versión RNG del modelo de turbulencia k-ε.
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References
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[15] M. Rahimi y A. Parvareh, «CFD study on mixing by coupled jet-impeller mixers in a large crude oil storage tank,» Computers and chem eng., nº 31, pp. 737-744, 2004 diciembre 2007.
[2] M. Rahimi, “The effect of impeller layout on mixing time in a large-scale crude oil storage tank,” J. of Petrol Science & Eng, pp. 161-170, 2005.
[3] B. Wu, «Computational fluid dynamics study of large-scale mixing systems with side-entering impellers,» Eng Appl of Computational Fluids Mech, vol. 6, nº 1, pp. 123-133, 2012.
[4] J. A. Castro Gualdrón, L. A. Abreu Mora y F. A. Díaz Mateus, «CFD simulation of crude oil homogenization in pilot plant scale,» Ciencia, Tecn y Futuro, vol. 5, nº 2, pp. 19-30, Jun 2013.
[5] E. L. Paul, V. A. Atiemo-Obeng and S. M. Kresta, Handbook of Industrial Mixing. Science and Practice, New Jersey: John Wiley & Sons, Inc. , 2003, pp. 259-263.
[6] E. M. Marshall y A. Bakker, Computational Fluid Mixing, Lebanon, New Hampshire, USA: Fluent Inc., 2003.
[7] J. N. Haque, K. J. Roberts y T. Mahmud, «Modeling turbulent flows with free-surface in unbaffled agitated vessels,» Ind. Eng. Chem. Res, pp. 2881-2891, 2006.
[8] B. Wu, «CFD investigation of turbulence models for mechanical agitation of non-Newtonian fluids in anaerobic digester,» Water Research, pp. 2082-2094, 2011.
[9] B. Launder y D. Spalding, «The numerical computation of turbulent flows,» Computer methods in applied mechs and eng., vol. 3, pp. 269-289, 1974.
[10] A. W. Patwardhan y J. B. Joshi, «Relation between flow pattern and blending in stirred tanks,» Ind. Eng. Chem. Res., pp. 3131-3143, 1999.
[11] J. A. Sossa, Experimental and computational study of mixing behavior in stirred tanks equipped with side entry impellers, Vancouver: University of British Columbia, 2012.
[12] J. Aubin y C. Xuereb, «Design of multiple impeller stirred tanks for the mixing of highly viscous fluids using CFD,» Chem. Eng. Science, nº 61, pp. 2913-2920, 2006.
[13] M. Tyagi, S. Roy, A. D. Harvey III y S. Acharya, «Simulation of laminar and turbulent impeller stirred tanks using immersed boundary method and large eddy simulation technique in multi-block curvilinear geometries,» Chem. Eng. Science, nº 62, pp. 1351-1363, 2007.
[14] T. Kumaresan y B. J. Jyeshtharaj, «Effect of impeller design on the flow pattern and mixing in stirred tanks,» Chemival Eng J. , nº 1185, pp. 173-193, 2006.
[15] M. Rahimi y A. Parvareh, «CFD study on mixing by coupled jet-impeller mixers in a large crude oil storage tank,» Computers and chem eng., nº 31, pp. 737-744, 2004 diciembre 2007.
Published
2015-06-16
How to Cite
Hernández-Jaramillo, D., Nieto-Londoño, C., Álvarez-Sarmiento, N., Barrero, R., & Novoa-Mantilla, L. (2015). Simulación en CFD del proceso de mezcla en un tanque de almacenamiento de crudo de gran escala con agitadores de entrada lateral. ITECKNE, 12(1), 25-32. https://doi.org/https://doi.org/10.15332/iteckne.v12i1.818
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Section
Research and Innovation Articles
