Study of Hydrodynamics and Upscaling of Immiscible Fluid Stirred Tank using Computational Fluid Dynamics Simulation

Authors

  • Ekaroek Phumnok Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90110, Thailand
  • Waritnan Wanchan Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand
  • Matinee Chuenjai Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand
  • Panut Bumphenkiattikul Simulation Technology, Digital Manufacturing, Chemicals Business, SCG, 1 Siam Cement Road, Bang sue, Bangkok 10800, Thailand
  • Sunun Limtrakul Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Jatujak, Bangkok 10900, Thailand
  • Sukrittira Rattanawilai Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90110, Thailand
  • Parinya Khongprom Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90110, Thailand

DOI:

https://doi.org/10.37934/cfdl.14.6.115133

Keywords:

Immiscible liquid-liquid stirred tank, Computational fluid dynamics, Scale up, Hydrodynamic, Mixing time

Abstract

Stirred tanks are prevalent in various industries, including chemical, biochemical, and pharmaceutical industries. These reactors are suitable for ensuring efficient mass and heat transfer because adequate mixing can be achieved. Numerous studies have been conducted on small-scale stirred-tank reactors. However, upscaling such reactors is challenging because of the complex flow behavior inside the system, especially for the mixing of immiscible liquid–liquid systems. Thus, the objectives of this study were to examine the flow behavior and upscale an immiscible liquid–liquid stirred tank using CFD simulation by investigating a flat-bottomed stirred tank reactor, equipped with a six-blade Rushton turbine. The simulated results were in good agreement with those obtained experimentally. The scale of the reactor significantly affects the hydrodynamic behavior, and the uniformity of the radial distribution of the velocity decreases with increasing Reynolds number. Furthermore, the upscaling criteria were evaluated for geometric similarity and equal mixing times. The proposed scaling law reliably scaled up the immiscible liquid–liquid mixing in a stirred tank with a difference in the range of ±10%.

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Author Biographies

Ekaroek Phumnok, Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90110, Thailand

ekaroek.ph@skru.ac.th

Waritnan Wanchan, Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand

waritnan.wc@gmail.com

Matinee Chuenjai, Department of Industrial Chemistry, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok 10800, Thailand

ch.matinee05@gmail.com

Panut Bumphenkiattikul, Simulation Technology, Digital Manufacturing, Chemicals Business, SCG, 1 Siam Cement Road, Bang sue, Bangkok 10800, Thailand

panutbum@scg.com

Sunun Limtrakul, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Jatujak, Bangkok 10900, Thailand

sunun.l@ku.ac.th

Sukrittira Rattanawilai, Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90110, Thailand

sukrittira.r@psu.ac.th

Parinya Khongprom, Department of Chemical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90110, Thailand

parinya.kh@psu.ac.th

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Published

2022-06-30

How to Cite

Phumnok, E., Wanchan, W., Chuenjai, M., Bumphenkiattikul, P., Limtrakul, S., Rattanawilai, S., & Khongprom, P. (2022). Study of Hydrodynamics and Upscaling of Immiscible Fluid Stirred Tank using Computational Fluid Dynamics Simulation. CFD Letters, 14(6), 115–133. https://doi.org/10.37934/cfdl.14.6.115133

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