Engineering and application of a dual-modality process tomography system

Qiu, Chen; Hoyle, Brian; Podd, Frank

doi:10.1016/j.flowmeasinst.2007.07.008

Cited by 71 publications

(47 citation statements)

References 3 publications

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“…A measurement technique that is probably better known for its medical applications is the use of tomography. Some of the tomography systems (tomographs) currently available are γ-ray transmission tomography [3], Electrical Capacitance Tomography (ECT) [5], Electrical Resistance Tomography (ERT) [6], Magnetic Resonance Imaging (MRI) [7] and X-ray tomography [8]. A tomographic image (tomogram) can be generated via a variety of methods and they all produce some form of two dimensional sliced image through the investigated object.…”

Section: Introductionmentioning

confidence: 99%

A comparative study between electrical capacitance tomography and time-resolved X-ray tomography

Rautenbach

Mudde

Yang

et al. 2013

Flow Measurement and Instrumentation

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Modern day tomographs enable the research community to investigate the internal flow behaviour of a fluidized bed by non invasive methods that partially overcome the opaque nature of a dense bubbling bed. Each tomographic modality has its own limitations and advantages and in the present study two modern day tomographic systems were evaluated with respect to their performance on a cold dense fluidized bed. The two tomographs investigated are an Electrical Capacitance Tomography (ECT) tomograph and a time-resolved X-ray tomography tomograph. The study was performed on spherical glass particles with various particle size distributions that could mainly be classified as Geldart B or D particles. Two experimental towers were employed, one with a diameter of 10.4cm and the other 23.8cm while compressed air was used as fluidizing fluid during all of the experiments.Results obtained with both systems are provided in comprehensive figures and tables and some first results are obtained with the time-resolved X-ray tomography system. The bubble size measurements of both tomographs are compared with several theoretical correlations via the root mean square error of the predictions (RMSEP). With the results it was also concluded that a small amount of small particles can noticeably alter the fluidization hydrodynamics of a powder. The bubble frequencies are also presented to aid in understanding the hydrodynamic behaviour of the powders investigated. A comprehensive summary of the two tomographic modalities is also provided.

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Section: Introductionmentioning

confidence: 99%

A comparative study between electrical capacitance tomography and time-resolved X-ray tomography

Rautenbach

Mudde

Yang

et al. 2013

Flow Measurement and Instrumentation

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“…This design was implemented by ITS as the M3 IPT instrument. One example description of its use features the fusion of electrical resistance and electrical capacitance mode data in the study and measurement of oil/water/gas flows (Qui, Hoyle, & Podd, 2007). Other variants in this application area have used gammaray sensing to locate gas structures with electrical capacitance tomography.…”

Section: Multidimensional Data In Processesmentioning

confidence: 99%

Spectro-tomography

Hoyle

2015

Industrial Tomography

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“…The emergence of the first commercially manufactured multimodal ECT/ERT tomographs, e.g. M3000 by Industrial Tomography System Ltd. (Qiu et al, 2007) may be noted. There is increasing attention to the development of new design of ECT/ERT sensors for multimodal tomography (Cui et al, 2009).…”

Section: Possibilities Of Temperature Distribution Analysis Using Ectmentioning

confidence: 99%

“…The combination of process tomography modalities such as ECT and EIT may also be noted (Cui et al, 2009;Li and Soleimani, 2013;Marashdeh et al, 2007;Qiu et al 2007). This approach is the example of a multimodal tomography (also known as hybrid tomography), enabling to gain extensive data about the monitored process.…”

Section: Introductionmentioning

confidence: 99%

Applications of Electrical Capacitance Tomography for Research on Phenomena Occurring in the Fluidised Bed Reactors

Porzuczek¹

2014

Chemical and Process Engineering

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The paper presents a review of current achievements in the Electrical Capacitance Tomography (ECT) in relation to its possible applications in the study of phenomena occurring in fluidised bed reactors. Reactors of that kind are being increasingly used in chemical engineering, energetics (fluidised bed boilers) or industrial dryers. However, not all phenomena in the fluidised bed have been thoroughly understood. This results in the need to explore and develop new research methods. Various aspects of ECT operation and data processing are described with their applicability in scientific research. The idea for investigation of temperature distribution in the fluidised bed, using multimodal tomography, is also introduced. Metrological requirements of process tomography such as sensitivity, resolution, and speed of data acquiring are noted.

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Engineering and application of a dual-modality process tomography system

Cited by 71 publications

References 3 publications

A comparative study between electrical capacitance tomography and time-resolved X-ray tomography

A comparative study between electrical capacitance tomography and time-resolved X-ray tomography

Spectro-tomography

Applications of Electrical Capacitance Tomography for Research on Phenomena Occurring in the Fluidised Bed Reactors

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