Abstract
Particle behavior in a horizontal gas-solid agitated vessel with two parallel axes was investigated. The particle behavior depends on the particle holdup and flow velocity as well as their distribution in the vessel. Therefore particle holdup and three components of particle velocity were quantitatively measured at a local point in the vessel by using an electrostatic-capacity method and an image-sensor technique, respectively. A model based on the balance of the forces which act on a particle was also proposed to estimate the particle trajectory in the vessel. This model enabled us to predict the elevation of particle through the particle trajectory and velocity. The particle velocity calculated by this model was almost in agreement with the measured maximum velocity.
