Air-Water Two-Phase Flow Measurement using a Venturi Meter and an Electrical Resistance Tomography Sensor

Meng, Zhenzhen and Huang, Zhiyao and Wang, Baoliang and Ji, Haifeng and Li, Haiqing and Yan, Yong (2010) Air-Water Two-Phase Flow Measurement using a Venturi Meter and an Electrical Resistance Tomography Sensor. Flow Measurement and Instrumentation, 21 . pp. 268-276. (The full text of this publication is not available from this repository)

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Abstract

A method for airwater two-phase flow measurement is proposed using a Venturi meter combined with an Electrical Resistance Tomography (ERT) sensor. Firstly, the real-time flow pattern of the two-phase flow is identified using the ERT sensor. Secondly, the void fraction of the two-phase flow is calculated from the conductance values through a void fraction measurement model, developed using the LS-SVM regression method. Thirdly, the mass quality is determined from the void fraction through void fraction-quality correlation. And finally, the mass flowrate of the two-phase flow is calculated from the mass quality and the differential pressure across the Venturi meter. Experimental results demonstrate that the proposed method is effective for the measurement of the mass flowrate of airwater flow. The proposed method introduces the flow pattern information in the measurement process, which minimizes the influence of flow pattern on the conventional differential pressure based methods. In addition, the mass quality is calculated from the void fraction, so the difficulty to obtain the mass quality in conventional methods is also overcome. Meanwhile, the new method is capable for providing concurrent measurements of multiple parameters of the two-phase flow including void fraction, mass quality and mass flowrate as well as an indication of the flow pattern.

Item Type: Article
Uncontrolled keywords: Two-phase flow, Flowrate measurement, Venturi meter, Electrical resistance tomography sensor
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA166 Instrumentation
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems
Depositing User: J. Harries
Date Deposited: 02 Sep 2010 14:47
Last Modified: 29 May 2014 10:09
Resource URI: http://kar.kent.ac.uk/id/eprint/25444 (The current URI for this page, for reference purposes)
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