Role of tomography in gas/solids flow measurement

Gas/solids flow measurement presents many challenges to academics and engineers. Although this subject has been investigated for many years, it still remains a notorious task. The main difficulty is that all existing multi-phase flow meters are flow-regime-dependent and suffer from severe non-linear...

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Bibliographic Details
Published inFlow measurement and instrumentation Vol. 11; no. 3; pp. 237 - 244
Main Authors Yang, W.Q, Liu, S
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2000
Subjects
Cross correlation
Flow regime identification
Flowmeters
Gas/solids flow measurement
Process tomography
Two phase flow
Velocity measurement
Velocity profile measurement
Process tomography
Gas/solids flow measurement
Flow regime identification
Velocity profile measurement
Cross correlation
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ISSN0955-5986
1873-6998
DOI10.1016/S0955-5986(00)00023-6

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Summary:Gas/solids flow measurement presents many challenges to academics and engineers. Although this subject has been investigated for many years, it still remains a notorious task. The main difficulty is that all existing multi-phase flow meters are flow-regime-dependent and suffer from severe non-linearity problems. Industrial process tomography is based on measuring a subject, such as a gas/solids flow, from many different viewing angles and reconstructing cross-sectional distributions, i.e. tomographic images. From the images the flow regime can be identified, the solids fraction and velocity profiles be derived, and the volumetric flow rate be measured. This paper discusses these possibilities, in particular with electrical capacitance tomography (ECT). Some new results are presented.
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ISSN:0955-5986
1873-6998
DOI:10.1016/S0955-5986(00)00023-6