Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

2 Publications

Novel wire-mesh sensor for the investigation of non-conducting fluids

Da Silva, M. J.; Schleicher, E.; Hampel, U.
Conductivity wire-mesh sensors have been successfully employed in the investigation of two-phase flows in the past. Since the measuring principle requires at least one continuous conductive phase, wire-mesh sensors have almost exclusively been used for the investigation of air-water or steam-water systems. Nevertheless, non-conducting fluids such as oil or organic liquids often occur in industrial applications, for instance, in chemical and petrochemical industry. The experimental investigation of multiphase flows involving non-conducting fluids is therefore of large interest. For this reason we developed a novel wire-mesh sensor based on measurements of the electrical permittivity (capacitance) which is suitable for the investigation of non-conducting fluids. The prototype sensor consists of two layers of 16 steel wires each. The system can at the moment produce cross-sectional phase distribution images with 625 frames per second. Sensor and associate electronic were evaluated showing good accuracy and reproducibility in the permittivity measurement. Initial results of an air-oil bubbly flow as well as a slug flow measurement are presented.
Keywords: capcitance measurement, relative permittivity, wire-mesh sensor, two-phase flow, non-conducting fluid
  • Contribution to proceedings
    International Conference on Multiphase Flow, ICMF 2007, 09.-13.07.2007, Leipzig, Germany
    Proceedings of 6th International Conference on Multiphase Flow, paper S7_Thu_B_51, 978-3-86010-913-7
  • Lecture (Conference)
    International Conference on Multiphase Flow, ICMF 2007, 09.-13.07.2007, Leipzig, Germany

Permalink: https://www.hzdr.de/publications/Publ-9061
Publ.-Id: 9061