Velocity measurement by electrical capacitance tomography: A simulative study
Velocity is one of the crucial parameters in the multiphase flow especially gas-solid two-phase flow. Electrical capacitance tomography (ECT) offers robust, inexpensive, non-invasive and non-intrusive techniques for quantifying multiphase flow phenomena. This paper demonstrates a method to estima...
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| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/11919/1/P16935_85e6a46b3bd11d3d25a4403fe9a6a54a.pdf%203.pdf http://eprints.uthm.edu.my/11919/ http://doi.10.1063/5.0196499 |
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| Summary: | Velocity is one of the crucial parameters in the multiphase flow especially gas-solid two-phase flow.
Electrical capacitance tomography (ECT) offers robust, inexpensive, non-invasive and non-intrusive
techniques for quantifying multiphase flow phenomena. This paper demonstrates a method to
estimate average axial velocity through cross-correlation method between dual plane ECT sensors by
Parseval's theorem in the frequency domain. In an addition, parabolic fit interpolation was introduced
to optimize the time delay calculation. Three cases with different position of PMMA ball in ECT sensor
was studied coupled with noise added in the range 5% to 20%. The results show cross-correlation in
frequency domain successfully estimates the average axial velocity with 5.5% and reduce to 4% after
parabolic fit interpolation treatment |
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