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dc.contributor.authorJia, Jiabin
dc.contributor.authorWang, Mi
dc.contributor.authorFaraj, Yousef
dc.contributor.authorWang, Qiang
dc.date.accessioned2020-10-29T08:12:49Z
dc.date.available2020-10-29T08:12:49Z
dc.date.issued2015-07-02
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/623911/Online%20Conductivity%20Calibration%20Methods%20for%20EIT%20Gas%20oil%20in%20Water%20Flow%20Measurement%20%28Final%20version%29.pdf?sequence=6
dc.identifier.citationJia, J., Wang, M., Faraj, Y., Wang, Q. (2015). Online Conductivity Calibration Methods for EIT Gas/oil in Water Flow Measurement. Flow Measurement and Instrumentation, 46, 213-217en_US
dc.identifier.issn0955-5986
dc.identifier.doi10.1016/j.flowmeasinst.2015.07.002
dc.identifier.urihttp://hdl.handle.net/10034/623911
dc.description.abstractElectrical Impedance Tomography (EIT) is a fast imaging technique displaying the electrical conductivity contrast of multiphase flow. It is increasingly utilised for industrial process measurement and control. In principle, EIT has to obtain the prior information of homogenous continuous phase in terms of conductivity as a reference benchmark. This reference significantly influences the quality of subsequent multiphase flow measurement. During dynamic industrial process, the conductivity of continuous phase varies due to the effects from the changes of ambient and fluid temperature, ionic concentration, and internal energy conversion in fluid. It is not practical to stop industrial process frequently and measure the conductivity of continuous phase for taking the EIT reference. If without monitoring conductivity of continuous phase, EIT cannot present accurate and useful measurement results. To online calibrate the electrical conductivity of continuous phase and eliminate drift error of EIT measurement, two methods are discussed in this paper. Based on the linear approximation between fluid temperature and conductivity, the first method monitors fluid temperature and indirectly calibrates conductivity. In the second method, a novel conductivity cell is designed. It consists of a gravitational separation chamber with refreshing bypass and grounded shielding plate. The conductivity of continuous phase is directly sensed by the conductivity cell and fed to EIT system for online calibration. Both static and dynamic experiments were conducted to demonstrate the function and accuracy the conductivity cell.en_US
dc.publisherElsevieren_US
dc.relation.urlhttps://www.sciencedirect.com/science/article/abs/pii/S0955598615001065en_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.subjectEITen_US
dc.subjectOnline conductivity calibrationen_US
dc.subjectFlow measurementen_US
dc.titleOnline conductivity calibration methods for EIT gas/oil in water flow measurementen_US
dc.typeArticleen_US
dc.contributor.departmentUniversity of Chester; University of Leeds; University of Edinburghen_US
dc.identifier.journalFlow Measurement and Instrumentationen_US
or.grant.openaccessYesen_US
rioxxterms.funderEngineering and Physical Sciences Research Council (EPSRC) (EP/H023054/1); State Key Laboratory of Oil and Gas Geology and Exploration at Southwest Petroleum University (China) (PLN1119,PLN1309)en_US
rioxxterms.identifier.projectEngineering and Physical Sciences Research Council (EPSRC) (EP/H023054/1); State Key Laboratory of Oil and Gas Geology and Exploration at Southwest Petroleum University (China) (PLN1119,PLN1309)en_US
rioxxterms.versionAMen_US
rioxxterms.versionofrecordhttps://doi.org/10.1016/j.flowmeasinst.2015.07.002en_US
rioxxterms.licenseref.startdate2016-07-02
rioxxterms.publicationdate2015-07-02
dc.dateAccepted2015-07-01
dc.date.deposited29-10-2020en_US
dc.indentifier.issn0955-5986en_US


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International