Recent developments and industrial/research applications of capacitance tomography

Reinecke, N.; Mewes, Dieter

doi:10.1088/0957-0233/7/3/004

Cited by 132 publications

(66 citation statements)

References 29 publications

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“…Influence of the distributor on the pressure drop in Column 2 provided with a 2-mm glass beads packing (U L = 6 mm·s -1 ). Reinecke et al (1996aReinecke et al ( , 1996bReinecke et al ( , 1998 Kennedy and Jaffe (1986), this model gives a good description of data obtained in industrial plants: Figure 4 shows an RTD obtained by using radioactive tracing in a commercial HDS plant and the best fit of the two-zone model.…”

Section: Global Pressure Drop and Rtd Measurementsmentioning

confidence: 86%

Liquid Distribution in Trickle-Bed Reactor

Marcandelli¹,

Lamine

Bernard³

et al. 2000

Oil & Gas Science and Technology - Rev. IFP

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Section: Global Pressure Drop and Rtd Measurementsmentioning

confidence: 86%

Liquid Distribution in Trickle-Bed Reactor

Marcandelli¹,

Lamine

Bernard³

et al. 2000

Oil & Gas Science and Technology - Rev. IFP

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“…The relation between a discrete measuring value Φ M and the reconstruction function f(x,y) is expressed by the following linear relationship (Kihm et al, 1998;Reinecke and Mewes, 1996;Tarvainen et al, 2008):…”

Section: Reconstruction Algorithmmentioning

confidence: 99%

Selection of Optical Tomography Parameters for Gas Bubble Shape Analysis

Rząsa¹

2014

Chemical and Process Engineering

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An optical tomograph in which a tested object is illuminated from five directions has been presented in the paper. The measurements of luminous intensity after changing into discrete signals (0 or 1) in the detectors equipped with 64 optical sensors were subjected to reconstruction by means of the matrix algorithm. Detailed description of the measuring sensor, as well as the principles of operation of the electronic system, has been given in the paper. Optical phenomena occurring at the phase boundary while transmitted through the sensor wall and phenomena inside the measuring space have also been taken into account. The method of the sensor calibration has been analysed and a way of technical solution of the problem under consideration has been discussed. The elaborated method has been tested using objects of the known shape and dimensions. It was found that reconstruction of the shapes of moving bubbles and determination of their main parameters is also possible with a reasonable accuracy.

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“…These efforts have expanded the scope of application of ECT, into such fields as measurement of multi-phase flows (gas-liquid and gas-solids, etc.) in pipelines, detection of leakage from buried water pipes, flow pattern identification (Reinecke & Mewes, 1996;Xie et al, 2006), etc. This chapter aims to introduce the realization of a computer-based DAQ and coordination system for ECT through Virtual Instrumentation (VI).…”

Section: Fig 1 Illustration Of Major Components In An Ect Systemmentioning

confidence: 99%

“…For the 8-electrode ECT, M = 28, the rows are sorted along the sequence as listed in Table 1. Such a sensitivity matrix can be either experimentally measured (Williams & Beck, 1995) or calculated from a numerical model (Reinecke & Mewes, 1996) by simulating the inter-electrode capacitance values when there is a unit permittivity change in each of the pixels. Due to the limitation of signal-to-noise ratio in the practical capacitance measurement circuitry, the number of electrodes, N, is generally not greater than 16, to ensure a sufficient surface area for each electrode.…”

Section: Data Normalizationmentioning

confidence: 99%