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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Simmons, Mark
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Design of slurries for 3D printing of sodium-ion battery electrodescitations
- 2023Comparison between RANS and 3D-PTV measurements of Newtonian and non-Newtonian fluid flows in a stirred vessel in the transitional regimecitations
- 2023Thermomechanical Responses of Microcracks in a Honeycomb Particulate Filter
- 2022Rheology and structure of lithium‐ion battery electrode slurriescitations
- 2021Understanding the effects of processing conditions on the formation of lamellar gel networks using a rheological approachcitations
- 2021Lagrangian investigations of a stirred tank fluid flow using 3D-PTVcitations
- 2020Ironmaking and Steelmaking Slags As Sustainable Adsorbents For Industrial Effluents And Wastewater Treatmentcitations
- 2017Investigating the impact of operating conditions on the extent of additive mixing during thermoplastic polymer extrusioncitations
- 2016Agglomeration in counter-current spray drying towers. Part A: Particle growth and the effect of nozzle heightcitations
- 2016A comparison of methods for in-situ discrimination of imaged phase boundaries using Electrical Capacitance Tomography
- 2016The impact of process parameters on the purity and chemical properties of lignin extracted from miscanthus x giganteus using a modified organosolv method
- 2013An Assessment of the Influence of Gas Turbine Lubricant Thermal Oxidation Test Method Parameters Towards the Development of a New Engine Representative Laboratory Test Methodcitations
- 2013Kinetics of metals adsorption in acid mine drainage treatment with blast furnace slag
- 2009Influence of surfactant upon air entrainment hysteresis in curtain coatingcitations
- 2007Influence of vicosity and impingement speed on intense hydrodynamic assist in curtain coatingcitations
- 2006Hysteresis and non-uniqueness in the speed of onset of instability in curtain coatingcitations
- 2006Influence of the flow field in curtain coating onto a prewet substratecitations
Places of action
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article
A comparison of methods for in-situ discrimination of imaged phase boundaries using Electrical Capacitance Tomography
Abstract
The detection of hard boundaries using tomographic techniques is challenging due to the measurement resolution inherent in the hardware and smoothing effects created during image reconstruction. This paper is concerned with the development of data processing approaches which enable the use of electrical capacitance tomography (ECT) in real-time applications to visualise interfaces in liquid/liquid and solid/liquid systems based upon phase permittivity differences in media with a high di-electric continuum. The methodologies developed were applied to a series of phantoms to investigate their validity as a tool for imaging phase boundaries in two and three phase systems.<br/><br/>In an ECT based tomogram, the interface between phases is exhibited as a transition region; by applying a threshold technique based upon known areas of each respective phase within the system, the transient region can be resolved into a sharp interface. The image error of a tomogram, defined as the deviation of all pixels from their theoretical value, has been calculated using a pixel-by-pixel approach; however this requires exact a priori knowledge and is unsuitable for in-line application; the areal method used in this paper requires global phase distribution information thereby allowing for real-time application. A range of threshold values were applied to tomograms of phantoms of varying geometry and the corresponding image error for each threshold value calculated using both the areal and pixel-by-pixel approaches given above. The threshold value yielding lowest image error from this range is further used in the binary images giving improved tomograms with approximately 40% increase in image accuracy when compared with a default threshold value. Close to the sensor wall, the image becomes distorted due to reconstruction errors arising from decreased density in the electrical field lines, resulting in a circular phantom appearing elongated by approximately 10% when positioned near the wall.