Three-dimensional unsteady numerical simulation of a 150 kWth full-loop chemical looping combustion pilot with biomass as fuel: A hydrodynamic investigation

•3D unsteady numerical simulations of a full-loop CLC using an Eulerian approach.•General agreement between numerical and experimental results on pressure distributions.•Ability of the model to reproduce the reactive flow by an isothermal assumption.•Gas turbulence is dissipated by the two-way coupling effect.•The random velocities of neighboring particles look uncorrelated.