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Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium

Received: 4 May 2021     Accepted: 1 June 2021     Published: 15 June 2021
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Abstract

This experimental study describes the effect of the oscillating grid on hydrodynamics and mass transfer in an aquarium. The contribution of the two driving elements CO2 and oscillating grid is identified. Depending on the operating conditions, either these two effects add up and promote the circulation and transport of the liquid, or these effects are opposite, the liquid velocity is then reduced. On the other hand, with regard to gas-liquid mass transfer, the use of the grid is beneficial since, under certain operating conditions; the mass transfer coefficient is increased compared to that obtained without the grid. Analysis of the various energy contributions in the unit shows that the presence of the grid is justified only in cases where the CO2 flow rate must remain low. Flow characterization was performed using Particle Image Velocimetry (PIV) technique. The results were compared with previous studies. In order to perform the concentration field measurements by planar laser induced fluorescence (PLIF) technique and simultaneous PIV and PLIF measurements, the test bench was modified. The observations of velocity and concentration fields are in adequacy with the previous studies and allow to validate the bench. The necessary tools have been put in place, the study of mass transfer can continue.

Published in Fluid Mechanics (Volume 7, Issue 1)
DOI 10.11648/j.fm.20210701.12
Page(s) 9-16
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Hydrodynamics, Oscillating Grid, Mass Transfer, Velocity Fields, Concentration Fields, PIV-PLIF

References
[1] Barru, B., et al. (2011) Mass Transfer Efficiency of a Vacuum Airlift—Application to Water Recycling in Aquaculture Systems. Aquacultural Engineering, 46, 18-26.
[2] Siegel, M. H. and C. W. Robinson, "Applications of Airlift Gas Liquid Solid Reactors in Biotechnology", Chem. Eng. Sei. 47, 3215-3229 (1992).
[3] Barrut, B. (2011) Etude et optimisation du fonctionnement d’une colonne airlift à dépression—Application à l’aquaculture. 137 p.
[4] Dutta, N. N. and V. G. Pangarkar, "Critical Impeller Speed for Solid Suspension in Multi-impeller. Three Phase Agitated Contactors", Can. J. Chem. Eng. 73, 273-283 (1995).
[5] Favre, E., M. Derond and P. Peringer, "Influence of a Rotating Sieve on Pumping and Mixing Performances in an [ntemal Loop Reactor", Bioprocess Engineering 11, 91-95 (1994).
[6] Nguyen, C., "Etude et comparaison de trois contacteurs gaz liquide à auto-aération", Thèse de Doctorat INPL, Nancy, France (1993).
[7] Anastassiades, E., "Etude du fonctionnement de mobiles autoaspirants dans les réacteurs agités gaz liquide", Thèse de Doctorat INPL, Nancy, France (1995).
[8] J. G. Janzen et al.: Estimation of mass transfer velocity based on measured turbulence parameters. AIChE Journal, 56 (8): 2005–2017, 2010, ISSN 1547-5905.
[9] P. Valiorgue, N. Souzy, M. El hajem, H. Ben hadid, S. Simoens "Concentration measurement in the wake of a free rising bubble using planar laser-induced fluorescence (PLIF) with a calibration taking into account fluorescence extinction variations", Exp. Fluids 54, 1501.
[10] N. Souzy: Experimental study and improvement of mass transfer in vertical bubble columns. Thèse de doctorat, Université Claude Bernard Lyon 1, (2014).
[11] N. Matsunaga et al Quantitative properties of oscillating-grid turbulence in a homogeneous fluid, Fluid dynamics research 25.3: 147-165, (1999).
[12] H. HERLINA, "Gas transfer at the air-water interface in a turbulent flow environment", Thèse de doctorat, Université de Karslruhe, (2005).
[13] E. A. Variano & E. A. Cowen, “Turbulent transport of a High-Schmidt-number scalar near an air-water interface”, J. Fluid Mech., vol. 731, pp. 259-287, (2013).
[14] J. C. Hunt & J. M. R. Graham, “Free-stream turbulence near plane boundaries”, J. Fluid Mech., 84, part 2, pp. 209-235, (1978).
[15] Cheng, Nian-Sheng, and Adrian Wing-Keung Law. "Measurements of turbulence generated by oscillating grid." Journal of Hydraulic Engineering 127.3: 201-208, 2001.
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  • APA Style

    Djimako Bongo, Nekoulnang Djetounako Clarisse, Jean-Yves Champagne. (2021). Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium. Fluid Mechanics, 7(1), 9-16. https://doi.org/10.11648/j.fm.20210701.12

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    ACS Style

    Djimako Bongo; Nekoulnang Djetounako Clarisse; Jean-Yves Champagne. Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium. Fluid Mech. 2021, 7(1), 9-16. doi: 10.11648/j.fm.20210701.12

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    AMA Style

    Djimako Bongo, Nekoulnang Djetounako Clarisse, Jean-Yves Champagne. Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium. Fluid Mech. 2021;7(1):9-16. doi: 10.11648/j.fm.20210701.12

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  • @article{10.11648/j.fm.20210701.12,
      author = {Djimako Bongo and Nekoulnang Djetounako Clarisse and Jean-Yves Champagne},
      title = {Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium},
      journal = {Fluid Mechanics},
      volume = {7},
      number = {1},
      pages = {9-16},
      doi = {10.11648/j.fm.20210701.12},
      url = {https://doi.org/10.11648/j.fm.20210701.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.fm.20210701.12},
      abstract = {This experimental study describes the effect of the oscillating grid on hydrodynamics and mass transfer in an aquarium. The contribution of the two driving elements CO2 and oscillating grid is identified. Depending on the operating conditions, either these two effects add up and promote the circulation and transport of the liquid, or these effects are opposite, the liquid velocity is then reduced. On the other hand, with regard to gas-liquid mass transfer, the use of the grid is beneficial since, under certain operating conditions; the mass transfer coefficient is increased compared to that obtained without the grid. Analysis of the various energy contributions in the unit shows that the presence of the grid is justified only in cases where the CO2 flow rate must remain low. Flow characterization was performed using Particle Image Velocimetry (PIV) technique. The results were compared with previous studies. In order to perform the concentration field measurements by planar laser induced fluorescence (PLIF) technique and simultaneous PIV and PLIF measurements, the test bench was modified. The observations of velocity and concentration fields are in adequacy with the previous studies and allow to validate the bench. The necessary tools have been put in place, the study of mass transfer can continue.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Effect of an Oscillating Grid on Hydrodynamics and Gas-liquid Mass Transfer in an Aquarium
    AU  - Djimako Bongo
    AU  - Nekoulnang Djetounako Clarisse
    AU  - Jean-Yves Champagne
    Y1  - 2021/06/15
    PY  - 2021
    N1  - https://doi.org/10.11648/j.fm.20210701.12
    DO  - 10.11648/j.fm.20210701.12
    T2  - Fluid Mechanics
    JF  - Fluid Mechanics
    JO  - Fluid Mechanics
    SP  - 9
    EP  - 16
    PB  - Science Publishing Group
    SN  - 2575-1816
    UR  - https://doi.org/10.11648/j.fm.20210701.12
    AB  - This experimental study describes the effect of the oscillating grid on hydrodynamics and mass transfer in an aquarium. The contribution of the two driving elements CO2 and oscillating grid is identified. Depending on the operating conditions, either these two effects add up and promote the circulation and transport of the liquid, or these effects are opposite, the liquid velocity is then reduced. On the other hand, with regard to gas-liquid mass transfer, the use of the grid is beneficial since, under certain operating conditions; the mass transfer coefficient is increased compared to that obtained without the grid. Analysis of the various energy contributions in the unit shows that the presence of the grid is justified only in cases where the CO2 flow rate must remain low. Flow characterization was performed using Particle Image Velocimetry (PIV) technique. The results were compared with previous studies. In order to perform the concentration field measurements by planar laser induced fluorescence (PLIF) technique and simultaneous PIV and PLIF measurements, the test bench was modified. The observations of velocity and concentration fields are in adequacy with the previous studies and allow to validate the bench. The necessary tools have been put in place, the study of mass transfer can continue.
    VL  - 7
    IS  - 1
    ER  - 

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Author Information
  • Mechanical Engineering Department, Higher Normal School of Technology of Sarh, Sarh, Chad

  • Paleontology Department, National Research Center for Development of N’djamena, N’djamena, Chad

  • Mechanical Engineering Department, Laboratory of Fluid Mechanics and Acoustics, INSA-Lyon, Lyon, France

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