Abstract
Accurate measurement of multiphase flows, including gas/solids, gas/liquid and liquid/liquid flows, is still challenging. In principle, electrical capacitance tomography (ECT) can be used to measure the concentration of solids in a gas/solids flow and the liquid (e.g. oil) fraction in a gas/liquid flow if the liquid is nonconductive. Electrical resistance tomography (ERT) can be used to measure a gas/liquid flow if the liquid is conductive. It has been attempted to use a dualmodality ECT/ERT system to measure both the concentration profile and the velocity profile by pixelbased cross correlation. However, this approach is not realistic because of the dynamic characteristics and the complexity of multiphase flows and the difficulties in determining the velocities by cross correlation. In this paper, the issues with dual modality ECT/ERT and the difficulties with pixelbased cross correlation will be discussed. A new adaptive multimodality (ECT, ERT and electrodynamic) sensor, which can be used to measure a gas/solids or gas/liquid flow, will be described. Some details of the electrostatic charge amplifier and signal processing will be discussed. Initial experimental results will be given.
| Original language | English |
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| Title of host publication | 6th World Congress in Industrial Process Tomography |
| Subtitle of host publication | 6th - 9th September 2010, Beijing, China |
| Publisher | International Society for Industrial Process Tomography |
| Pages | 1412-1418 |
| Number of pages | 7 |
| ISBN (Print) | 9780853163220 |
| Publication status | Published - 2010 |
| Event | 6th World Congress on Industrial Process Tomography - Beijing, China Duration: 6 Sept 2010 → 9 Sept 2010 |
Conference
| Conference | 6th World Congress on Industrial Process Tomography |
|---|---|
| City | Beijing, China |
| Period | 6/09/10 → 9/09/10 |
Keywords
- ECT
- Electrodynamic
- ERT
- Multiphase flow measurement
- Multimodality sensor