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Measurement of the Gas-Solid Flow in a Wurster Tube Using 3D Electrical Capacitance Tomography Sensor

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The Proceedings of the International Conference on Sensing and Imaging (ICSI 2017)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 506))

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Abstract

Wurster tube plays an important role in the circulation of solid particles in a fluidized bed coating process. To investigate the flow hydrodynamic behaviors inside a Wurster-type fluidized bed, a unique 3D electrical capacitance tomography (ECT) sensor is designed and constructed to visualize the gas-solid flow structure in a Wurster fluidized bed. The ECT sensor consists of 16 electrodes, and the electrodes are attached on the inner wall of the tube. Several “cold” tests are carried out by changing the fluidization air rate and the gap height between the Wurster tube and air distributor. The solid distributions in three dimensions are reconstructed based on the sensitivity maps and measured capacitance vector. Key parameters including the measured capacitances and averaged solid concentration with different operating conditions are given and discussed. The experimental result gives valuable information for the optimization of the fluidized bed coating process.

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Acknowledgments

The authors are grateful for the support from the National Natural Science Foundation of China (Nos. 61320106004 and 61374018) and the CAS Interdisciplinary Innovation Team.

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Authors and Affiliations

  1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing, China

    H. Q. Che, J. M. Ye & H. G. Wang

  2. University of Chinese Academy of Sciences, Beijing, China

    H. Q. Che & H. G. Wang

  3. School of Electrical and Electronic Engineering, University of Manchester, Manchester, UK

    W. Q. Yang

Authors
  1. H. Q. Che
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  2. J. M. Ye
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  3. W. Q. Yang
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  4. H. G. Wang
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Corresponding author

Correspondence to H. G. Wang .

Editor information

Editors and Affiliations

  1. School of Mathematical Sciences, Peking University, Beijing, China

    Ming Jiang

  2. Department of Electrical and Computer Engineering, The University of Akron, Akron, OH, USA

    Nathan Ida

  3. Institute of Applied Mathematics, Saarland University, Saarbrücken, Germany

    Alfred K. Louis

  4. Department of Mathematics, Tufts University, Medford, MA, USA

    Eric Todd Quinto

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Che, H.Q., Ye, J.M., Yang, W.Q., Wang, H.G. (2019). Measurement of the Gas-Solid Flow in a Wurster Tube Using 3D Electrical Capacitance Tomography Sensor. In: Jiang, M., Ida, N., Louis, A., Quinto, E. (eds) The Proceedings of the International Conference on Sensing and Imaging. ICSI 2017. Lecture Notes in Electrical Engineering, vol 506. Springer, Cham. https://doi.org/10.1007/978-3-319-91659-0_30

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  • DOI: https://doi.org/10.1007/978-3-319-91659-0_30

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-91658-3

  • Online ISBN: 978-3-319-91659-0

  • eBook Packages: EngineeringEngineering (R0)

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