Measurment of gas-liquid two-phase slug flow with a Venturi meter based on blind source separation

doi:10.1016/j.cjche.2015.05.008

›› 2015, Vol. 23 ›› Issue (9): 1447-1452.DOI: 10.1016/j.cjche.2015.05.008

• Fluid Dynamics and Transport Phenomena • Previous Articles Next Articles

Measurment of gas-liquid two-phase slug flow with a Venturi meter based on blind source separation

Weiwei Wang, Xiao Liang, Mingzhu Zhang

College of Information and Control Engineering, China University of Petroleum, Qingdao 266580, China

Received:2014-12-21 Revised:2015-05-22 Online:2015-10-24 Published:2015-09-28
Supported by:
Supported by the National Natural Science Foundation of China (51304231) and the Natural Science Foundation of Shandong Province (ZR2010EQ015).

Measurment of gas-liquid two-phase slug flow with a Venturi meter based on blind source separation

Weiwei Wang, Xiao Liang, Mingzhu Zhang

College of Information and Control Engineering, China University of Petroleum, Qingdao 266580, China

通讯作者: Weiwei Wang
基金资助:
Supported by the National Natural Science Foundation of China (51304231) and the Natural Science Foundation of Shandong Province (ZR2010EQ015).

Abstract

Abstract: Wepropose a novel flowmeasurementmethod for gas-liquid two-phase slug flowby using the blind source separation technique. The flow measurementmodel is established based on the fluctuation characteristics of differential pressure (DP) signalsmeasured froma Venturimeter. It is demonstrated that DP signals of two-phase flow are a linear mixture of DP signals of single phase fluids. The measurementmodel is a combination of throttle relationship and blind source separation model. In addition,we estimate the mixturematrix using the independent component analysis (ICA) technique. The mixture matrix could be described using the variances of two DP signals acquired from two Venturi meters. The validity of the proposed model was tested in the gas-liquid twophase flow loop facility. Experimental results showed that for most slug flow the relative error is within 10%. We also find that the mixture matrix is beneficial to investigate the flow mechanism of gas-liquid two-phase flow.

Key words: Two-phase slug flow, Flow measurement, Differential pressure, Blind source separation, Independent component analysis

摘要： Wepropose a novel flowmeasurementmethod for gas-liquid two-phase slug flowby using the blind source separation technique. The flow measurementmodel is established based on the fluctuation characteristics of differential pressure (DP) signalsmeasured froma Venturimeter. It is demonstrated that DP signals of two-phase flow are a linear mixture of DP signals of single phase fluids. The measurementmodel is a combination of throttle relationship and blind source separation model. In addition,we estimate the mixturematrix using the independent component analysis (ICA) technique. The mixture matrix could be described using the variances of two DP signals acquired from two Venturi meters. The validity of the proposed model was tested in the gas-liquid twophase flow loop facility. Experimental results showed that for most slug flow the relative error is within 10%. We also find that the mixture matrix is beneficial to investigate the flow mechanism of gas-liquid two-phase flow.

关键词: Two-phase slug flow, Flow measurement, Differential pressure, Blind source separation, Independent component analysis

Weiwei Wang, Xiao Liang, Mingzhu Zhang. Measurment of gas-liquid two-phase slug flow with a Venturi meter based on blind source separation[J]. , 2015, 23(9): 1447-1452.

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Measurment of gas-liquid two-phase slug flow with a Venturi meter based on blind source separation

Measurment of gas-liquid two-phase slug flow with a Venturi meter based on blind source separation

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