Measurement of Particle Flow Rates in Gas-Solid Two Phase Flow by a Piezoelectric Probe

Abstract

A method of measuring particle flow rates in gas-solids flow by piezoelectric probe has been improved. By detecting only the highest vibrating frequency caused by particle collision through a high pass filter, very high collision numbers can be counted. To access the performance of this probe, experiments measuring particle flow rates in a riser tube were carried out. The correlation equation between the counted collision number and the particle flow rate of these experiments is deduced. The estimated flow rates and real flow rates are compared and show good coincidence.