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

作　　者：翟路生 金宁德 高忠科 黄旭 

机构地区：[1]School of Electrical Engineering & Automation, Tianjin University, Tianjin 300072, China

出　　处：《Chinese Journal of Chemical Engineering》2013年第7期813-819,共7页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （50974095, 41174109, 61104148）, and the National Science and Technology Mai or Projects （2011ZX05020-006）.

摘　　要：This paper presents a novel capacitance probe, i.e., paraUel-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.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 

分 类 号：TQ336.1[化学工程—橡胶工业] TM935.3[电气工程—电力电子与电力传动]