A High Spatial And Temporal Resolution Film Thickness Sensor In Oil - Water Flows

This work presents a study of a new technique for non-intrusive measurement of liquid-liquid flow. The evaluated film thickness sensor has 64 × 16 measuring points and a measuring area of 128 × 32 mm. This sensor measures the electrical conductance and, through a calibration procedure, converts those signals in water film thickness. The experimental work was carried out in the Swiss Federal Institute of Technology Zurich (ETHZ) in Zurich, Switzerland. © 2014 IEEE.5761 IEEE Instrumentation and Measurement Society (I and M)Clark, W.W., Liquid film thickness measurement (2002) Multiphase Science and Technology, 14 (1), pp. 1-74Tibiriçá, C.B., Do Nascimento, F.J., Ribatski, G., Film thickness measurement techniques applied to micro-scale two-phase flow systems (2010) Experimental Thermal and Fluid Science, 34 (4), pp. 463-473. , MayAlekseenko, S.V., Cherdantsev, A.V., Kharlamov, S.M., Markovich, D.M., Secondary instability of waves in annular two-phase flow with and without entrainment (2010) Journal of Physics: Conference Series, 216, p. 012006. , MarDamsohn, M., Prasser, H., High-speed liquid film sensor for two-phase flows with high spatial resolution based on electrical conductance (2009) Flow Measurement and Instrumentation, 20 (1), pp. 1-14. , MarThiele, S., Da Silva, M.J., Hampel, U., Capacitance planar array sensor for fast multiphase flow imaging (2009) IEEE Sensors Journal, 9 (5), pp. 533-540. , MaySilva, M.J.D., Schleicher, E., Hampel, U., Capacitance wire-mesh sensor for fast measurement of phase fraction distributions (2007) Measurement Science and Technology, 18 (7), pp. 2245-2251. , JulIto, D., Damsohn, M., Prasser, H.-M., Aritomi, M., Dynamic film thickness between bubbles and wall in a narrow channel (2011) Experiments in Fluids, 51 (3), pp. 821-833. , MayDamsohn, M., Prasser, H.M., High-speed liquid film sensor with high spatial resolution (2009) Measurement Science and Technology, 20 (11), p. 114001. , NovPrasser, H., A new electrode-mesh tomograph for gas-liquid flows (1998) Flow Measurement and Instrumentation, 9 (2), pp. 111-119. , JunBonilla Riano, A., Bannwart, A.C., Rodriguez, O.M.H., Holdup estimation in core flow using image processing (2013) IEEE Instrumentation and Measurement Technology Conference, pp. 334-338. , art. no. 6555435 Ma