SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2013, Vol. 21 ›› Issue (7): 813-819.DOI: 10.1016/S1004-9541(13)60501-X

• RESEARCH NOTES • Previous Articles    

The Finite Element Analysis for Parallel-wire Capacitance Probe in Small Diameter Two-phase Flow Pipe

ZHAI Lusheng, JIN Ningde, GAO Zhongke, HUANG Xu   

  1. School of Electrical Engineering & Automation, Tianjin University, Tianjin 300072, China
  • Received:2011-11-21 Revised:2012-12-05 Online:2013-08-24 Published:2013-07-28
  • Supported by:

    Supported by the National Natural Science Foundation of China (50974095, 41174109, 61104148), and the National Science and Technology Major Projects (2011ZX05020-006).

The Finite Element Analysis for Parallel-wire Capacitance Probe in Small Diameter Two-phase Flow Pipe

翟路生, 金宁德, 高忠科, 黄旭   

  1. School of Electrical Engineering & Automation, Tianjin University, Tianjin 300072, China
  • 通讯作者: JIN Ningde
  • 基金资助:

    Supported by the National Natural Science Foundation of China (50974095, 41174109, 61104148), and the National Science and Technology Major Projects (2011ZX05020-006).

Abstract: This paper presents a novel capacitance probe, i.e., parallel-wire capacitance probe (PWCP), for two-phase flow measurement. Using finite element method (FEM), the sensitivity field of the PWCP is investigated and the optimum sensor geometry is determiend in term of the characterisitc parameters. Then, the response of PWCP for the oil-water stratified flow is calculated, and it is found the PWCP has better linearity and sensitivity to the variation of water-layer thickness, and is almost independant of the angle between the oil-water interface and the sensor electrode. Finally, the static experiment for oil-water stratified flow is carried out and the calibration method of liquid holdup is presented.

Key words: parallel-wire capacitance probe, finite element analysis, sensitivity field, oil-water stratified flow

摘要: This paper presents a novel capacitance probe, i.e., parallel-wire capacitance probe (PWCP), for two-phase flow measurement. Using finite element method (FEM), the sensitivity field of the PWCP is investigated and the optimum sensor geometry is determiend in term of the characterisitc parameters. Then, the response of PWCP for the oil-water stratified flow is calculated, and it is found the PWCP has better linearity and sensitivity to the variation of water-layer thickness, and is almost independant of the angle between the oil-water interface and the sensor electrode. Finally, the static experiment for oil-water stratified flow is carried out and the calibration method of liquid holdup is presented.

关键词: parallel-wire capacitance probe, finite element analysis, sensitivity field, oil-water stratified flow