Hydrodynamics of a spouted bed with an impermeable draft tube for binary particle systems

CFD Multifluid Simulation of Spouted Beds with and without Internal Draft Tubes

“…Hence, understanding the hydrodynamics of gas and particle flow is important for both industrial application and fundamental research. Little research has been done on a spouted bed with a non-porous and a porous draft tube for binary mixtures of particles (Nagashima et al 1999). Ishikura et al (2003) obtained useful experimental data for pressure drop in three types of spouted bed.…”

“…They investigated hydrodynamic parameters of binary mixture of the particles in spouted bed with porous and non-porous draft tube at different operating conditions. In addition to the experimental works (Ishikura et al 2003, Nagashima et al 1999, He et al 1994a, He et al 1994b, numerical simulation has evolved into a useful tool to obtain detailed information of flow phenomena in spouted beds (Du et al 2006a, Du et al 2006b, Zhonghua and Mujumdar 2008. CFD has been used as a powerful numerical tool for modeling of multiphase flows to reduce the design time and cost.…”

Experimental investigation of a draft tube spouted bed for effects of geometric parameters on operation

“…Conventional spouted bed (CSB) is an effective gas-solid contact system for coarse particles [1,2]. Different configuration of spouted beds were applied to improve the spouting performance, gas-solid contact, solid circulation rate and gas flow distribution [3,4,5].…”

“…Cylindrical-conical [6,7], rectangular-pyramidal [8,9] and conical configurations [4] are the examples of modifications on conventional spouted beds. Inserting a tube to the spouting stream of a CSB will form a draft tube spouted bed (DTSB) [1].…”