PREDICTION OF FLOW REGIMES IN SPOUT-FLUIDIZED BEDS

• 作 者: Jiyu Zhang Fengxiang Tang
• 机 构: Institute of Chemical Engineering and Technology, Fuzhou University, Fujian 350002, P.R. China
• 出 处: 中国颗粒学报（英文版）
• 发表日期: 2006年3期
• 关键词: spout-fluidized bed flow regime major frequencies

Five main flow regimes in spout-fluidized bed were identified in this study, namely, fixed bed, spout with aeration, spout-fluidization, jet in fluidized bed and slugging, together with their corresponding major frequencies translated from pressure signals. The empirical equation A=aBb, in which A=Fr* /(H/Di) and B=(Fr*/(H/D))/(μg/μmf) are respectively the spout-geometry and spout-geometry-fluidization dimensionless numbers, was proposed to distinguish these flow regimes.