Application of process tomography in gas-solid fluidised beds in different scales and structures

H. G. Wang, H. Q. Che, J. M. Ye, Q. Y. Tu, Z. P. Wu, W. Q. Yang, Raffaella Ocone

Research output: Contribution to journalArticle

Abstract

Gas-solid fluidised beds are commonly used in particle-related processes, e.g. for coal combustion and gasification in the power industry, and the coating and granulation process in the pharmaceutical industry. Because the operation efficiency depends on the gas-solid flow characteristics, it is necessary to investigate the flow behaviour. This paper is about the application of process tomography, including electrical capacitance tomography (ECT) and microwave tomography (MWT), in multi-scale gas-solid fluidisation processes in the pharmaceutical and power industries. This is the first time that both ECT and MWT have been applied for this purpose in multi-scale and complex structure. To evaluate the sensor design and image reconstruction and to investigate the effects of sensor structure and dimension on the image quality, a normalised sensitivity coefficient is introduced. In the meantime, computational fluid dynamic (CFD) analysis based on a computational particle fluid dynamic (CPFD) model and a two-phase fluid model (TFM) is used. Part of the CPFD-TFM simulation results are compared and validated by experimental results from ECT and/or MWT. By both simulation and experiment, the complex flow hydrodynamic behaviour in different scales is analysed. Time-series capacitance data are analysed both in time and frequency domains to reveal the flow characteristics.

Original languageEnglish
Article number044001
JournalMeasurement Science and Technology
Volume29
Issue number4
DOIs
Publication statusPublished - 7 Mar 2018

Fingerprint

Electrical Capacitance Tomography
Tomography
beds
Fluid Model
tomography
Microwave
Pharmaceuticals
Industry
Fluid Dynamics
Gases
gases
Capacitance
capacitance
Sensitivity Coefficient
Fluidization
industries
flow characteristics
Microwaves
Sensor
Granulation

Keywords

  • electrical capacitance tomography
  • fluidization
  • microwave tomography
  • process tomography
  • sensitivity analysis

ASJC Scopus subject areas

  • Instrumentation
  • Applied Mathematics

Cite this

Wang, H. G. ; Che, H. Q. ; Ye, J. M. ; Tu, Q. Y. ; Wu, Z. P. ; Yang, W. Q. ; Ocone, Raffaella. / Application of process tomography in gas-solid fluidised beds in different scales and structures. In: Measurement Science and Technology. 2018 ; Vol. 29, No. 4.
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Application of process tomography in gas-solid fluidised beds in different scales and structures. / Wang, H. G.; Che, H. Q.; Ye, J. M.; Tu, Q. Y.; Wu, Z. P.; Yang, W. Q.; Ocone, Raffaella.

In: Measurement Science and Technology, Vol. 29, No. 4, 044001, 07.03.2018.

Research output: Contribution to journalArticle

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AU - Wu, Z. P.

AU - Yang, W. Q.

AU - Ocone, Raffaella

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