Physical Modelling of an Aluminium Degassing Operation with Rotating ImpellersA Comparative Hydrodynamic Analysis
Por:
Camacho-Martínez J.L., Ramírez-Argáez M.A., Zenit-Camacho R., Juárez-Hernández A., Barceinas-Sanchez, JDO, Trápaga-Martinez G.
Publicada:
1 ene 2010
Resumen:
A hydrodynamic study of aluminum degassing by the rotating impeller technique was developed through experimental measurements obtained in a water physical model stirred with different impellers and air injection. The purpose of the work was to better understand degassing operation in molten aluminum through the analysis of the hydrodynamics of the system. Particle image velocimetry (PIV) was employed to measure flow patterns and turbulence characteristics of the ladle as a function of process and design variables, such as: a) impeller rotating speed (536 and 800rpm), b) air flow rate (3liters/min and 0l/min), c) geometric design of the different impellers (impeller oAo made of a solid disc, impeller oBo with lateral nozzles and an impeller oCo with notches), where impellers oBo and oCo represent commercial designs. Impellers oBo and oCo presented similar flow behavior, with radial projection and pumping effect, while impeller oAo developed different flow patterns. By increasing the ang
Filiaciones:
Camacho-Martínez J.L.:
Materials Science and Engineering Department, CINVESTAV-Queretaro, Fracc. Real de Juriquilla, Libramiento Norponiente # 2000, Querétaro, Qro. C.P. 76230, Mexico
CIATEQ A.C, El Marqués, Qro., Mexico
Ramírez-Argáez M.A.:
Univ Nacl Autonoma Mexico, Sch Chem, Dept Met Engn, Mexico City 04510, DF, Mexico
Zenit-Camacho R.:
Univ Nacl Autonoma Mexico, Mat Res Inst, Mexico City 04510, DF, Mexico
Juárez-Hernández A.:
Mechanical and Electrical School, Autonomous University of Nuevo Leon, Monterrey, Nuevo León, Mexico
Trápaga-Martinez G.:
Materials Science and Engineering Department, CINVESTAV-Queretaro, Fracc. Real de Juriquilla, Libramiento Norponiente # 2000, Querétaro, Qro. C.P. 76230, Mexico
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