THERMAL SCIENCE

International Scientific Journal

SIMULATION OF NEWLY DESIGNED VORTEX GENERATORS FOR OPTIMIZING FLUID MIXING EFFICIENCY IN COMPACT STATIC MIXERS WITH SINGLE-EXIT CONFIGURATION

ABSTRACT
This research paper presents a highly significant study on a new type of static mixer, using advanced numerical simulations to assess its mixing efficiency. The mixer's unique T-shaped design with a spherical mixing chamber and side entrances deviates from traditional designs, resulting in smooth fluid-flow and reduced risk of blockages. The mixer employs hydrodynamic pumps to create a vortex, enhancing mixing. Numerical simulations reveal detailed insights into flow behavior and mixing performance, demonstrating an impressive 94% mixing efficiency within a 2 cm diameter sphere. The innovative design and technique offer practical solutions to industrial mixing problems, benefiting the chemical, pharmaceutical, and related industries. The high mixing efficiency leads to cost savings and improved product quality, while achieving the highest mixing index at Re = 650 sets a new milestone in static mixing. These findings contribute to applied mechanics and optimize industrial mixing processes.
KEYWORDS
PAPER SUBMITTED: 2022-12-18
PAPER REVISED: 1970-01-01
PAPER ACCEPTED: 2023-04-14
PUBLISHED ONLINE: 2023-09-17
DOI REFERENCE: https://doi.org/10.2298/TSCI2304337K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 4, PAGES [3337 - 3347]
REFERENCES
  1. Thakur, R. K., et al., Static Mixers in the Process Industries - A Review, Chemical Engineering Research and Design, 81 (2003), 7, pp. 787-826
  2. Hobbs, D. M., Muzzio, F. J., Reynolds Number Effects on Laminar Mixing in the Kenics Static Mixer, Chemical Engineering Journal, 70 (1998), 2, pp. 93-104
  3. Yoo, W. S., et al., A Novel Effective Micromixer Having Horizontal and Vertical Weaving Flow Motion, Journal of Micromechanics and Microengineering, 22 (2012), 3, 035007
  4. Bakker, A., LaRoche, R. D., Modeling of the Turbulent Flow in HEV Static Mixers, Published in "The Online CFM Book" at www.bakker.org/cfm, Updated: February 15, 2000
  5. Kim, Y., et al., A Novel Micro-Mixer with a Quasi-Active Rotor: Fabrication and Design Improvement, Journal of Micromechanics and Microengineering, 19 (2009), 10, 105028
  6. Viktorov, V., et al., Numerical Study of Fluid Mixing at Different Inlet Flow-Rate Ratios in Tear-Drop and Chain Micromixers Compared to a New HC Passive Micromixer, Engineering Applications of Computational Fluid Mechanics, 10 (2016), 1, pp. 182-192
  7. Yang, R., et al., A Rapid Micro-Mixer/Reactor Based on Arrays of Spatially Impinging Micro-jets, Journal of Micromechanics and Microengineering, 14 (2004), 10, 1345
  8. Liu, R. H., et al., Passive Mixing in a Three-Dimensional Serpentine Microchannel, Journal of microelectromechanical systems, 9 (2000), 2, pp. 190-197
  9. Lehwald, A., et al., Quantifying Macro-Mixing and Micro-Mixing in a Static Mixer Using Two-Tracer Laser-Induced Fluorescence, Experiments in fluids, 48 (2010), Oct., pp. 823-836
  10. Alberini, F., Blending of Non-Newtonian Fluids in Static Mixers: Assessment via Optical Methods, Ph. D. thesis, University of Birmingham, Birmigham, UK, 2014
  11. Fradette, L., et al., Gas/Liquid Dispersions with a SMX Static Mixer in the Laminar Regime, Chemical Engineering Science, 61 (2006), 11, pp. 3506-3518
  12. Jegatheeswaran, S., et al., Efficient Mixing of Yield-Pseudoplastic Fluids at Low Reynolds Numbers in the Chaotic SMX Static Mixer, Chemical Engineering Journal, 317 (2017), June, pp. 215-231
  13. Park, T., et al., Effect of Static Mixer Geometry on Flow Mixing and Pressure Drop in Marine SCR Applications, International Journal of Naval Architecture and Ocean Engineering, 6 (2014), 1, pp. 27-38
  14. Zidouni, F., et al., Simulation of Gas-Liquid Flow in a Helical Static Mixer, Chemical Engineering Science, 137 (2015), Dec., pp. 476-486
  15. Mihailova, O., et al., Laminar Mixing in a SMX Static Mixer Evaluated by Positron Emission Particle Tracking (PEPT) and Magnetic Resonance Imaging (MRI), Chemical Engineering Science, 137 (2015), Dec., pp. 1014-1023
  16. Edwards, M. F., et al., Mixing of Liquids in Stirred Tanks, in: Mixing in the Process Industries, Butter-worth-Heinemann, Oxford, UK, 1992, pp. 137-158
  17. Tauscher, W., Static Mixing and Reaction Technology, Chemical and petroleum engineering, 32 (1996) 3, pp. 224-237
  18. Jones, D. A., Wilkinson, W. L., The Dynamic Response of a Multiple-Mixer Solvent Extraction Column to Concentration Disturbances, Chemical Engineering Science, 28 (1973), 2, pp. 539-551
  19. Hamouda, R. B. Notions de Mécanique des Fluides: Cours et Exercices Corrigés, UVT, Tunis, Tunisia, 2009
  20. Thomas, K. M., et al., Design and Characterization of Kenics Static Mixer Crystallizers, Chemical Engineering Research and Design, 179 (2022), Mar., pp. 549-563

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