Effect of Impeller’s Blade Number on The Performance of Mixing Flow in Stirred Tank using CFD Simulation Method

Authors

  • Ahmad Faiq Baba Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia
  • Nor Afzanizam Samiran Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia
  • Razlin Abd Rashid Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia
  • Izuan Amin Ishak Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia
  • Zuliazura Mohd Salleh Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia
  • Rais Hanizam Madon Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia
  • Muhammad Suhail Sahul Hamid Els Energy and Lab Solutions Sdn Bhd No.11A Tingkat Merpati Dua, Taman Transkrian 14300 Nibong Tebal, Pulau Pinang, Malaysia

DOI:

https://doi.org/10.37934/cfdl.14.5.3342

Keywords:

Stirred tank, Impeller, Number of blades, velocity magnitude, CFD

Abstract

The component of an impeller in stirred tank plays an important role in the mixing process for a wide range of industries. The present study conducted the analysis of impeller design specifically on the number of blades to investigate the flow performance in the stirred tank. The analysis was also performed to identify the location of the particle flow dead zone at the bottom of the tank. The grid development and fluid flow study were accomplished using the CFD simulation method via the Ansys Fluent software package. The impeller design with the arrangement of 3,4 and 5 blades number was involved in this study.  The rotational speed of the blade was set constant at 90 rpm. The flow characteristic at the vertical position of a tank at 0.01, 0.1, 0.2 and 0.3 m has been investigated. The general governing equation and solution approach used in this simulation were also presented in this paper. The results showed that 5 blades impeller produced a broader region of high-velocity magnitude distribution compared to the 3 and 4 blades. Hence, 5 blades impeller also relatively produced a higher distribution of velocity magnitude compared to the 3 and 4 blades impeller, typically in the upper region of the tank. However, the effect of a number of blades seemed not significant in the region close to the rotating impeller.

Author Biographies

Ahmad Faiq Baba, Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia

afzanizam@uthm.edu.my

Nor Afzanizam Samiran, Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia

afzanizam@uthm.edu.my

Razlin Abd Rashid, Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia

razlin@uthm.edu.my

Izuan Amin Ishak, Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia

izuan@uthm.edu.my

Zuliazura Mohd Salleh, Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia

zulia@uthm.edu.my

Rais Hanizam Madon, Department of Mechanical Engineering Technology, Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Johor, 84600, Malaysia

raismadon@uthm.edu.my

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Published

2022-05-31

How to Cite

Ahmad Faiq Baba, Nor Afzanizam Samiran, Razlin Abd Rashid, Izuan Amin Ishak, Zuliazura Mohd Salleh, Rais Hanizam Madon, & Muhammad Suhail Sahul Hamid. (2022). Effect of Impeller’s Blade Number on The Performance of Mixing Flow in Stirred Tank using CFD Simulation Method . CFD Letters, 14(5), 33–42. https://doi.org/10.37934/cfdl.14.5.3342

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