Acta Mechanica Slovaca 2024, 28(2):6-20 | DOI: 10.21496/ams.2024.008
A Numerical Study of the Innovative Design of Kinetic Static Mixer on Mixing Efficiency and Heat Transfer Improvement
- 1 Laboratory of Rheology and Mechanics (LRM), Mechanical Engineering department, Faculty of Technology, Hassiba BenBouali University of Chlef, Algeria
- 2 Laboratory for Theoretical Physics and Material Physics (LPTPM), Faculty of Technology, Hassiba BenBouali University of Chlef, Algeria
- 3 Laboratory of Industrial fluids, Measurement and Application, Faculty of Science and Technology Khemis Miliana university, Algeria
- 4 Mechanical Engineering department, Faculty of Technology, University Ibn Khaldoun, Tiaret, Algérie
- 5 Laboratory of Electromechanical Systems (LASEM), National School of Engineers of Sfax (ENIS), University of Sfax, Tunisia
This paper investigates the influence of rheological and geometrical properties on flow structures generated within a KENIC static mixer. The primary objectives are to examine the impact of these factors on fluid flow characteristics, particularly low-pressure conditions and mixing efficiency. To exanimate the performances of the different shapes, several parameters have been considered which consist on mixing index, thermal mixing index, hydrodynamic behavior and the probability density function. The investigation extends to encompass both Newtonian and non-Newtonian fluids, emphasizing Reynolds numbers ranging from 10 to 80. Comparative analyses are conducted against a conventional static mixer configuration. However, this investigation has been done with a numerical simulation using Ansys 20. Through comprehensive numerical simulations, the study highlights the significance of rheological and geometrical factors in shaping flow behaviors. The findings underscore the superior performance of the KENIC static mixer's designated configuration, denoted as KMSFH, when contrasted with alternative scenarios. The improved performance is observed across various flow conditions, showcasing enhanced mixing efficiency and lower pressure losses. Overall, this study found that the KMSFH showed a better performance with 99% than the other suggested mixers.
Keywords: Mixing; Kenic; Drop pressur; Nusselt
Received: January 27, 2024; Revised: May 7, 2024; Accepted: May 9, 2024; Published: June 14, 2024 Show citation
ACS | AIP | APA | ASA | Harvard | Chicago | Chicago Notes | IEEE | ISO690 | MLA | NLM | Turabian | Vancouver |
References
- Mahmoodi, H., Razzaghi, K., and Shahraki, F.: Improving mixing performance by curved blade static mixer. AIChEcharacterization methods-A review. Chemical engineering research and design, 92(2), 205-228. (2014). Doi: 10.1016/j.cherd.2013.07.013[13] Rauline, D., Le Blévec, J. M., Bousquet, J., and Tanguy, P. A.: A comparative assessment of the performance of the Kenics and SMX static mixers. Chemical Engineering Research and Design, 78(3), 389-396. (2000). Doi: 10.1205/026387600527284[14] Soman, S. S., and Madhuranthakam, C. M. R.: Effects of internal geometry modifications on the dispersive and distributive mixing in static mixers. Chemical Engineering and Processing: Process Intensification, 122, 31-43. (2017). Doi: 10.1016/j.cep.2017.10.001[15] Ameur, H., Kamla, Y., and Sahel, D.: Performance of helical screw impellers for mixing of viscous liquids in cylindrical reactors. ChemistrySelect, 2(5), 1891-1894. (2017). Doi: 10.1002/slct.201602072[16] Talhaoui, A., Draoui, B., and Youcefi, A.: Effect of Geometry Design on Mixing Performance of Newtonian Fluids using Helical Overlapped Mixer Elements in Kenics Static Mixer. Journal of Applied Fluid Mechanics, 14(6), 1643-1656. (2021). Doi: 10.47176/JAFM.14.06.32494[17] Haddadi, M. M., Hosseini, S. H., Rashtchian, D., and Olazar, M.: Comparative analysis of different static mixers performance by CFD technique: An innovative mixer. Chinese Journal of Chemical Engineering, 28(3), 672-684. (2020). Doi: 10.1016/j.cjche.2019.09.004[18] Ghanem, A., Habchi, C., Lemenand, T., Della Valle, D., and Peerhossaini, H.: Energy efficiency in process industry-High-efficiency vortex (HEV) multifunctional heat exchanger. Renewable Energy, 56, 96-104. (2013). Doi : 10.1016/j.renene.2012.09.024[19] Ghanem, A., Habchi, C., Lemenand, T., and DELLA, D.: Intensification des transferts convectifs par vorticité longitudinale. In Congrès Français de Thermique. (2011).[20] Thakur, R. K., Vial, C., Nigam, K. D. P., Nauman, E. B., and Djelveh, G.: Static mixers in the process industries-a review. Chemical engineering research and design, 81(7), 787-826. (2003). Doi : 10.1205/026387603322302968[21] Fradette, L., Li, H. Z., Choplin, L., and Tanguy, P.: Gas/liquid dispersions with a SMX static mixer in the laminar regime. Chemical engineering science, 61(11), 3506-3518. (2006). Doi :10.1016/j.ces.2005.12.022[23] Azer, N. Z., Lin, S. T., and Fan, L. T.: Augmentation of forced flow boiling heat transfer with Kenics montionless mixers. Industrial & Engineering Chemistry Process Design and Development, 19(2), 246-250. (1980). Doi :10.1021/i260074a008
Go to original source...
This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.