Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas
Accurate multiphase flow measurement of gas/liquid, liquid/solid and liquid/liquid flow is still challenging for researchers in process tomography. The reconstructed images are poor particularly in the center area because of ill-posed inverse problems and limited of measurements data. Dual-modality...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English English |
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Penerbit Universiti Teknologi Malaysia
2015
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| Online Access: | http://umpir.ump.edu.my/id/eprint/11805/1/Simulation%20Of%20Electrode%20For%20Dual-Modality%20Electrical%20Resistance%20Tomography%20And%20Ultrasonic%20Transmission%20Tomography%20For%20Imaging%20Two-Phase%20Liquid%20And%20Gas.pdf http://umpir.ump.edu.my/id/eprint/11805/7/Simulation%20of%20Electrode%20For%20Dual-Modality%20Electrical%20Resistance%20Tomography%20and%20Ultrasonic%20Transmission%20Tomography%20for%20Imaging%20Two-Phase%20Liquid%20and%20Gas.pdf |
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| author | Fazlul Rahman, Mohd Yunus Ruzairi, Abdul Rahim Leow, Pei Ling Nor Muzakkir, Nor Ayob Yasmin, Abdul Wahab Suzanna, Ridzuan Aw Anita, Ahmad Nasarudin, Ahmad Mohd Hafiz, Fazalul Rahiman |
| author_facet | Fazlul Rahman, Mohd Yunus Ruzairi, Abdul Rahim Leow, Pei Ling Nor Muzakkir, Nor Ayob Yasmin, Abdul Wahab Suzanna, Ridzuan Aw Anita, Ahmad Nasarudin, Ahmad Mohd Hafiz, Fazalul Rahiman |
| author_sort | Fazlul Rahman, Mohd Yunus |
| collection | UMP |
| description | Accurate multiphase flow measurement of gas/liquid, liquid/solid and liquid/liquid flow is still challenging for researchers in process tomography. The reconstructed images are poor particularly in the center area because of ill-posed inverse problems and limited of measurements data. Dual-modality tomography has been introduced to overcome the problem by means each modality is sensitive to specific properties of materials to be imaged. This paper proposed combination of ultrasonic transmission tomography (UTT) and electrical resistance tomography (ERT) for imaging two phase gas/liquid. In the proposed combination, detection ability in the medium of interest improved because two different images in the same space can be obtained simultaneously. This paper presents 3D numerical modeling approach using COMSOL software for ERT excitation strategy and electrode pre-designed geometry. Electrical resistance tomography (ERT) can be implemented for gas/liquid flow if the liquid is conductive. The objectives of this work is to analyze the optimum electrode dimension and shape in order to improve the situation of: (1) gas bubble detection located in the centre of the medium, (2) potential distribution and current density in a conductive medium, the developed numerical model simulated the changes in resistivity of the conductive material, with variations of electrode sizes, with opposite current excitation implemented into the region of interest. Simulation results show that the electrode size of 12 mm (w) × 40 mm (h) is suitable, which gives a good detection of center gas bubble with diameter 10mm in 100-mm-diameter acrylic vessel. Finally the findings are verified with Image reconstruction using Linear Back Projection (LBP) which gives good indication of the 10mm gas bubble. |
| first_indexed | 2024-03-06T12:00:23Z |
| format | Article |
| id | UMPir11805 |
| institution | Universiti Malaysia Pahang |
| language | English English |
| last_indexed | 2024-03-06T12:00:23Z |
| publishDate | 2015 |
| publisher | Penerbit Universiti Teknologi Malaysia |
| record_format | dspace |
| spelling | UMPir118052018-02-14T01:47:29Z http://umpir.ump.edu.my/id/eprint/11805/ Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas Fazlul Rahman, Mohd Yunus Ruzairi, Abdul Rahim Leow, Pei Ling Nor Muzakkir, Nor Ayob Yasmin, Abdul Wahab Suzanna, Ridzuan Aw Anita, Ahmad Nasarudin, Ahmad Mohd Hafiz, Fazalul Rahiman TK Electrical engineering. Electronics Nuclear engineering Accurate multiphase flow measurement of gas/liquid, liquid/solid and liquid/liquid flow is still challenging for researchers in process tomography. The reconstructed images are poor particularly in the center area because of ill-posed inverse problems and limited of measurements data. Dual-modality tomography has been introduced to overcome the problem by means each modality is sensitive to specific properties of materials to be imaged. This paper proposed combination of ultrasonic transmission tomography (UTT) and electrical resistance tomography (ERT) for imaging two phase gas/liquid. In the proposed combination, detection ability in the medium of interest improved because two different images in the same space can be obtained simultaneously. This paper presents 3D numerical modeling approach using COMSOL software for ERT excitation strategy and electrode pre-designed geometry. Electrical resistance tomography (ERT) can be implemented for gas/liquid flow if the liquid is conductive. The objectives of this work is to analyze the optimum electrode dimension and shape in order to improve the situation of: (1) gas bubble detection located in the centre of the medium, (2) potential distribution and current density in a conductive medium, the developed numerical model simulated the changes in resistivity of the conductive material, with variations of electrode sizes, with opposite current excitation implemented into the region of interest. Simulation results show that the electrode size of 12 mm (w) × 40 mm (h) is suitable, which gives a good detection of center gas bubble with diameter 10mm in 100-mm-diameter acrylic vessel. Finally the findings are verified with Image reconstruction using Linear Back Projection (LBP) which gives good indication of the 10mm gas bubble. Penerbit Universiti Teknologi Malaysia 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11805/1/Simulation%20Of%20Electrode%20For%20Dual-Modality%20Electrical%20Resistance%20Tomography%20And%20Ultrasonic%20Transmission%20Tomography%20For%20Imaging%20Two-Phase%20Liquid%20And%20Gas.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/11805/7/Simulation%20of%20Electrode%20For%20Dual-Modality%20Electrical%20Resistance%20Tomography%20and%20Ultrasonic%20Transmission%20Tomography%20for%20Imaging%20Two-Phase%20Liquid%20and%20Gas.pdf Fazlul Rahman, Mohd Yunus and Ruzairi, Abdul Rahim and Leow, Pei Ling and Nor Muzakkir, Nor Ayob and Yasmin, Abdul Wahab and Suzanna, Ridzuan Aw and Anita, Ahmad and Nasarudin, Ahmad and Mohd Hafiz, Fazalul Rahiman (2015) Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas. Jurnal Teknologi (Sciences and Engineering), 77 (17). pp. 55-61. ISSN 0127-9696 (print); 2180-3722 (online). (Published) http://dx.doi.org/10.11113/jt.v77.6436 DOI: 10.11113/jt.v77.6436 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Fazlul Rahman, Mohd Yunus Ruzairi, Abdul Rahim Leow, Pei Ling Nor Muzakkir, Nor Ayob Yasmin, Abdul Wahab Suzanna, Ridzuan Aw Anita, Ahmad Nasarudin, Ahmad Mohd Hafiz, Fazalul Rahiman Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas |
| title | Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas |
| title_full | Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas |
| title_fullStr | Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas |
| title_full_unstemmed | Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas |
| title_short | Simulation of Electrode for Dual-Modality Electrical Resistance Tomography and Ultrasonic Transmission Tomography for Imaging Two-Phase Liquid and Gas |
| title_sort | simulation of electrode for dual modality electrical resistance tomography and ultrasonic transmission tomography for imaging two phase liquid and gas |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://umpir.ump.edu.my/id/eprint/11805/1/Simulation%20Of%20Electrode%20For%20Dual-Modality%20Electrical%20Resistance%20Tomography%20And%20Ultrasonic%20Transmission%20Tomography%20For%20Imaging%20Two-Phase%20Liquid%20And%20Gas.pdf http://umpir.ump.edu.my/id/eprint/11805/7/Simulation%20of%20Electrode%20For%20Dual-Modality%20Electrical%20Resistance%20Tomography%20and%20Ultrasonic%20Transmission%20Tomography%20for%20Imaging%20Two-Phase%20Liquid%20and%20Gas.pdf |
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