Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank

ALNAK, YELİZ; Alnak, Dogan Engin; KOCA, Ferhat

doi:10.16984/saufenbilder.992396

Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank

Doğan Engin ALNAK, (Sivas Cumhuriyet Üniversitesi, Teknoloji Fakültesi, İmalat Mühendisliği Bölümü, Enerji Sistemleri Anabilim Dalı, Sivas, Türkiye)

Ferhat KOCA, (Sivas Cumhuriyet Üniversitesi, Teknoloji Fakültesi, İmalat Mühendisliği Bölümü, Enerji Sistemleri Anabilim Dalı, Sivas, Türkiye)

Yeliz ALNAK (Sivas Cumhuriyet Üniversitesi, Teknoloji Fakültesi, İmalat Mühendisliği Bölümü, Enerji Sistemleri Anabilim Dalı, Sivas, Türkiye)

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Yıl: 2022 Cilt: 26 Sayı: 2 Sayfa Aralığı: 397 - 409 Metin Dili: İngilizce DOI: 10.16984/saufenbilder.992396 İndeks Tarihi: 29-07-2022

Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank

Öz:

In this study, the most widely used Rushton turbine in the industry was discussed, and the effect of different blade angles on the mixture was investigated numerically. As a standard model, 6 bladed propellers were used and 4 baffles were placed in the stirred tank. The selected tank model is in the form of a flat bottom cylindrical container. Flow characteristics were obtained by giving angles (10°, 20°, 30°, 40°, 50°, 60°) to the propeller blades used in the straight model. The obtained results were compared with each other. In addition, analyzes were repeated at different rotation speeds (600 rpm, 750 rpm, 1000 rpm) for each model at each angle. ANSYS Fluent 18 commercial software, which is the most preferred CFD program in the literature, was used for this numerical study. The analyzes were provided in the standard k-epsilon (ε) turbulence model. The Multiple Reference Frame (MRF) approach was used to simulate impeller rotation. The velocity profiles obtained from the simulations have been shown to be in consistent with the experimental estimates and the results of previous studies. As a result, it has been revealed that the best mixing balance is provided by the impeller blade at 40 and 50 degrees.

Anahtar Kelime: agitator computational fluid mechanics Stirred tank propeller design k-epsilon turbulence model.

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

[1] J. Scully and P. Frawley, “Computational Fluid Dynamics Analysis of the Suspension of Nonspherical Particles in a Stirred Tank,” Ind. Eng. Chem. Res., vol. 50, pp. 2331–2342, 2011.
[2] F. Laurenzi, M. Coroneo, G. Montante, A. Paglianti, and F. Magelli, “Experimental and computational analysis of immiscible liquid – liquid dispersions in stirred vessels,” Chem. Eng. Res. Des., vol. 7, no. October 2008, pp. 507–514, 2009.
[3] E. S. Szalai, P. Arratia, K. Johnson, and F. J. Muzzio, “Mixing analysis in a tank stirred with Ekato Intermig J impellers,” Chem. Eng. Sci., vol. 59, pp. 3793–3805, 2004.
[4] C. P. K. Dagadu, Z. Stegowski, B. J. A. Y. Sogbey, and S. Y. Adzaklo, “Mixing Analysis in a Stirred Tank Using Computational Fluid Dynamics,” J. Appl. Math. Phys., vol. 3, no. June, pp. 637–642, 2015.
[5] V. I. Bykov and S. B. Tsybenova, “Parametric Analysis of the Continuous Stirred Tank Reactor Model,” Theor. Found. Chem. Eng., vol. 37, no. 1, pp. 59–69, 2003.
[6] S. K. Naeeni and L. Pakzad, “Chemical Engineering Research and Design Experimental and numerical investigation on mixing of dilute oil in water dispersions in a stirred tank,” Chem. Eng. Res. Des., vol. 147, pp. 493–509, 2019.
[7] S. Hosseini, D. Patel, F. Ein-mozaffari, and M. Mehrvar, “Study of Solid - Liquid Mixing in Agitated Tanks through Computational Fluid Dynamics Modeling,” Ind. Eng. Chem. Res., vol. 49, pp. 4426–4435, 2010.
[8] J. Aubin, D. F. Fletcher, and C. Xuereb, “Modeling turbulent flow in stirred tanks with CFD : the influence of the modeling approach , turbulence model and numerical scheme,” Exp. Therm. Fluid Sci., vol. 28, no. 2004, pp. 431–445, 2006.
[9] C. A. Coulaloglou and T. L, L, “Description Of Interaction Processes In Agitated Liquid-Liquid Dispersions,” Chem. Eng. Sci., vol. 32, pp. 1289–1297, 1977.
[10] S. K. Naeeni and L. Pakzad, “Droplet size distribution and mixing hydrodynamics in a liquid – liquid stirred tank by CFD modeling,” Int. J. Multiph. Flow, vol. 120, 2019.
[11] A. Kazemzadeh, F. Ein-mozaffari, and A. Lohi, “Particuology Effect of impeller type on mixing of highly concentrated slurries of large particles,” Particuology, vol. 50, pp. 88–99, 2020.
[12] H. Ameur, Y. Kamla, and D. Sahel, “Data on the agitation of a viscous Newtonian fl uid by radial impellers in a cylindrical tank,” Data Br., vol. 15, pp. 752–756, 2017.
[13] D. Gu, Z. Liu, Z. Xie, J. Li, C. Tao, and Y. Wang, “Numerical simulation of solid-liquid suspension in a stirred tank with a dual punched rigid-flexible impeller,” Adv. Powder Technol., vol. 28, no. 10, pp. 2723–2734, 2017.
[14] I. González-neria et al., “PIV and dynamic LES of the turbulent stream and mixing induced by a V- grooved blade axial agitator,” Chem. Eng. J., vol. 374, no. June, pp. 1138–1152, 2019.
[15] D. Wadnerkar, R. P. Utikar, M. O. Tade, and V. K. Pareek, “CFD simulation of solid – liquid stirred tanks,” Adv. Powder Technol., vol. 23, pp. 445–453, 2012.
[16] N. Qi, H. Zhang, K. Zhang, G. Xu, and Y. Yang, “CFD simulation of particle suspension in a stirred tank,” Particuology, vol. 11, no. 3, pp. 317–326, 2013.
[17] R. Alcamo, G. Micale, F. Grisafi, A. Brucato, and M. Ciofalo, “Large-eddy simulation of turbulent flow in an unbaffled stirred tank driven by a Rushton turbine,” Chem. Eng. Sci., vol. 60, pp. 2303–2316, 2005.
[18] C. J. Ian Torotwa, “A Study of the Mixing Performance of Different Impeller Designs in Stirred Vessels Using Computational Fluid Dynamics,” Designs, vol. 2, no. 10, 2018.
[19] Fluent Inc. Lebanon, FLUENT User’s Guide. Netherland, 2003.
[20] X. Duan, X. Feng, C. Peng, C. Yang, and Z. Mao, “Numerical simulation of micro-mixing in gas – liquid and solid – liquid stirred tanks with the coupled CFD-E-model,” Chinese J. Chem. Eng., vol. 28, no. 9, pp. 2235–2247, 2020.

APA	Alnak D, KOCA F, ALNAK Y (2022). Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. , 397 - 409. 10.16984/saufenbilder.992396
Chicago	Alnak Dogan Engin,KOCA Ferhat,ALNAK YELİZ Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. (2022): 397 - 409. 10.16984/saufenbilder.992396
MLA	Alnak Dogan Engin,KOCA Ferhat,ALNAK YELİZ Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. , 2022, ss.397 - 409. 10.16984/saufenbilder.992396
AMA	Alnak D,KOCA F,ALNAK Y Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. . 2022; 397 - 409. 10.16984/saufenbilder.992396
Vancouver	Alnak D,KOCA F,ALNAK Y Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. . 2022; 397 - 409. 10.16984/saufenbilder.992396
IEEE	Alnak D,KOCA F,ALNAK Y "Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank." , ss.397 - 409, 2022. 10.16984/saufenbilder.992396
ISNAD	Alnak, Dogan Engin vd. "Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank". (2022), 397-409. https://doi.org/10.16984/saufenbilder.992396

APA	Alnak D, KOCA F, ALNAK Y (2022). Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 26(2), 397 - 409. 10.16984/saufenbilder.992396
Chicago	Alnak Dogan Engin,KOCA Ferhat,ALNAK YELİZ Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi 26, no.2 (2022): 397 - 409. 10.16984/saufenbilder.992396
MLA	Alnak Dogan Engin,KOCA Ferhat,ALNAK YELİZ Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, vol.26, no.2, 2022, ss.397 - 409. 10.16984/saufenbilder.992396
AMA	Alnak D,KOCA F,ALNAK Y Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2022; 26(2): 397 - 409. 10.16984/saufenbilder.992396
Vancouver	Alnak D,KOCA F,ALNAK Y Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank. Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi. 2022; 26(2): 397 - 409. 10.16984/saufenbilder.992396
IEEE	Alnak D,KOCA F,ALNAK Y "Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank." Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 26, ss.397 - 409, 2022. 10.16984/saufenbilder.992396
ISNAD	Alnak, Dogan Engin vd. "Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank". Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi 26/2 (2022), 397-409. https://doi.org/10.16984/saufenbilder.992396