To assess the effects of mill operating parameters such as speed, ball filling, slurry concentration and filling on grinding process size distribution product, it was endeavored to build a pilot model with smaller than mill. For this aim, 1 m × 0.5 implemented. There are 15 lifters 50 mm height face angle 30˚. In present work, combination balls (40% 60 diameter, 40% 40 diameter 20% 25 diameter)...

We consider a porous thermoelastic body, including voidage time derivative among the independent constitutive variables. For the initial boundary value problem of such materials, we analyze the temporal behaviour of the solutions. To this aim we use the Cesaro means for the components of energy and prove the asymptotic equipartition in mean of the kinetic and strain energies.

Fluid flow through a bed of solid particles is an important process that occurs in full-scale water treatment operations. The Carman–Kozeny model remains highly popular for estimating the resistance across bed. It common practice to use particle shape factors fixed state match predicted drag coefficient with experimentally obtained coefficients. In fluidised state, however, where same are consi...

Liquid-solid fluidisation is frequently encountered in drinking water treatment processes, for instance seeded crystallisation softening processes. For modest superficial fluid velocities, liquid–solid systems are generally considered to be homogeneous, as reported literature. However, during experiments with calcite grains, open spaces of can observed between the fluidised particles, even at r...

The aim of this study was to perform sensitivity analysis, investigating how different fluidisation and sedimentation characteristics three-phase wetted UO2 powder beds, may affect a transient nuclear criticality excursion initiated through the addition water into fissile bed. This type postulated accident scenario occur in fuel fabrication facilities when fire is fought use water, supplied via...

In an axial granular bed filter (GBF), a new mesoscale simulation approach is obtained by combining the macroscopic calculation models, i.e., equations of total pressure drop and dust-removal efficiency into porous media model source term conservation equations. After grid-dependent tests experimental validation, effects different conditions, height L, superficial gas velocity ug, dust diameter...