Void Fraction Measurement of Gas-Liquid Two-Phase Flow Based on Capacitance Sensor

被引:1
作者
Kan, Zhe [1 ]
Liu, Xinyang [1 ]
Jia, Shuqi [1 ]
机构
[1] Liaoning Petrochem Univ, Sch Informat & Control Engn, Fushun 113001, Peoples R China
关键词
Electrodes; Electric potential; Mathematical models; Capacitance; Oils; Liquids; Voltage measurement; Sensitivity; Impedance; Capacitance measurement; Capacitive sensors; linearity; measurement circuits; relative error; sensitivity; void fraction;
D O I
10.1109/TIM.2024.3472773
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this study, two-phase flows comprising vacuum and water were used to simulate the two-phase flow of oil and gas in industrial applications. Accordingly, a theoretical model was established for the capacitance sensor to measure the void fraction of ring-type flows in vertical pipelines. Subsequently, the calculation formula of the void fraction was determined. Furthermore, ring- and plate-type electrodes were considered in the sensor simulation experiment. Numerical results showed that the sensitivity of ring electrodes is better than that of plate electrodes, while the linearity of plate electrodes is better than that of ring electrodes. For the plate electrode, the gap angle and electrode length were set to 20 degrees and 80 mm, respectively, to achieve the optimal sensor. Meanwhile, for the ring electrode, the electrode distance and width were set to 40 and 20 mm, respectively, to achieve the optimal sensor. The results of simulation experiments were verified through void fraction measurement experiments. The relative error was calculated using four sets of actual measurement values. The results showed a large deviation between the measured and theoretical void fractions near the empty tube, and the closer the measurements were to the full tube, the smaller the measurement error. In addition, the eccentric annular flow was found to have a significant influence on void fraction measurement.
引用
收藏
页数:10
相关论文
共 29 条
  • [1] Delhaye J. M., 1969, Application of Non -Equilibrium Thermodynamics to Two-Phase Flows With a Change of Phase
  • [2] Fend W. X., 2020, Instrum. Technol. Sensors, V27, P95
  • [3] A new capacitance angle sensor of concentric ring multi-layer differential
    Fu, Yuchen
    Fan, Wei
    Jin, Huaxue
    Chen, Qian
    [J]. MEASUREMENT, 2020, 158
  • [4] A CAPACITANCE SENSOR FOR 2-PHASE VOID FRACTION MEASUREMENT AND FLOW PATTERN IDENTIFICATION
    GERAETS, JJM
    BORST, JC
    [J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 1988, 14 (03) : 305 - 320
  • [5] Graham R. W., 1963, P MULT FLOW S ASME, V28, P118
  • [6] IN-SITU VOLUME FRACTION SENSOR FOR 2-PHASE FLOWS OF NONELECTROLYTES
    GREGORY, GA
    MATTAR, L
    [J]. JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY, 1973, 12 (02): : 48 - 52
  • [7] Gu C. L., 1999, J. Petroleum Univ., Natural Sci. Ed., V23, P109
  • [8] Guo Z. H., 2008, J. Sens. Technol., V21, P1472
  • [9] He G. P., 2022, Instrum. Technol. Sensors, V29, P23
  • [10] Hewitt G. F., 1961, At. Energy Res. Establishment, V13, P35