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Design of Stirrer Impeller with Variable Operational Speed for a Food Waste Homogenizer

Author

Listed:
  • Idris A. Kayode

    (Energhx Research Group, 353 Faculty of Engineering, Department of Mechanical Engineering, University of Lagos, Akoka-Yaba, Lagos 101017, Nigeria)

  • Emmanuel O. B. Ogedengbe

    (Energhx Research Group, 353 Faculty of Engineering, Department of Mechanical Engineering, University of Lagos, Akoka-Yaba, Lagos 101017, Nigeria)

  • Marc A. Rosen

    (Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, ON, L1H 7K4, Canada)

Abstract

A conceptualized impeller called KIA is designed for impact agitation of food waste in a homogenizer. A comparative analysis of the performance of KIA is made with three conventional impeller types, Rushton, Anchor, and Pitched Blade. Solid–liquid mixing of a moisture-rich food waste is simulated under various operational speeds, in order to compare the dispersions and thermal distributions at homogenous slurry conditions. Using SolidWorks, the design of the impellers employs an Application Programming Interface (API) which acts as the canvas for creating a graphical user interface (GUI )for automation of its assembly. A parametric analysis of the homogenizer, at varying operational speeds, enables the estimation of the critical speed of the mixing shaft diameter and the deflection under numerous mixing conditions and impeller configurations. The numerical simulation of the moisture-rich food waste (approximated as a Newtonian carrot–orange soup) is performed with ANSYS CFX v.15.0. The velocity and temperature field distribution of the homogenizer for various impeller rotational speeds are analyzed. It is anticipated that the developed model will help in the selection of a suitable impeller for efficient mixing of food waste in the homogenizer.

Suggested Citation

  • Idris A. Kayode & Emmanuel O. B. Ogedengbe & Marc A. Rosen, 2016. "Design of Stirrer Impeller with Variable Operational Speed for a Food Waste Homogenizer," Sustainability, MDPI, vol. 8(5), pages 1-23, May.
    • Handle: RePEc:gam:jsusta:v:8:y:2016:i:5:p:489-:d:70469
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    References listed on IDEAS

    as
    1. Chara, Zdenek & Kysela, Bohus & Konfrst, Jiri & Fort, Ivan, 2016. "Study of fluid flow in baffled vessels stirred by a Rushton standard impeller," Applied Mathematics and Computation, Elsevier, vol. 272(P3), pages 614-628.
    2. Olumide Babarinsa & Emmanuel O.B. Ogedengbe & Marc A. Rosen, 2014. "Mixing Performance of a Suspended Stirrer for Homogenizing Biodegradable Food Waste from Eatery Centers," Sustainability, MDPI, vol. 6(9), pages 1-12, August.
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