Data fusion for measurement of water holdup in horizontal pipes by conductivity rings

Author

Tan, Chao ; Dong, Feng ; Shi, Yanyan

Author_Institution

Tianjin Key Lab. of Process Meas. & Control, Tianjin Univ., Tianjin, China

fYear

2011

fDate

10-12 May 2011

Firstpage

1

Lastpage

5

Abstract

This paper introduces a method of fusing measurement data of a set of conductivity ring sensors to determine the average water holdup of oil-water two-phase flow within a horizontal pipeline. A six-ring conductivity sensor was built with 1kHz sampling rate, which delivers the generalized dimensionless conductivity and predicts the average water holdup based on Maxwell equation. An adaptive weighting algorithm is then brought forward to fuse the dimensionless conductivity and Maxwell equation to optimize the overall prediction upon average water holdup. The results suggest that the data fusion method reduces average relative error with 5.9%.

Keywords

Maxwell equations; electrical conductivity; flow sensors; sensor fusion; two-phase flow; Maxwell equation; adaptive weighting algorithm; conductivity rings; data fusion; dimensionless conductivity; frequency 1 kHz; horizontal pipes; oil water two phase flow; sampling rate; six ring conductivity sensor; water holdup; Conductivity; Conductivity measurement; Electrodes; Equations; Fluid flow measurement; Sensor fusion; conductivity ring sensors; data fusion; oil-water two-phase flow; water holdup;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE

Conference_Location

Binjiang

ISSN

1091-5281

Print_ISBN

978-1-4244-7933-7

Type

conf

DOI

10.1109/IMTC.2011.5944017

Filename

5944017