Title :
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
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location :
Binjiang
Print_ISBN :
978-1-4244-7933-7
DOI :
10.1109/IMTC.2011.5944017
