Physical Properties and Fluidization Behaviour of Fresh Green Bean Particulates During Fluidized Bed Drying

摘要: Changes in the physical properties (such as particle density, bulk density of bed, shrinkage and bed porosity) fresh green bean particulates were investigated during drying. Three length:diameter ratios (1:1, 2:1 3:1) considered, using drying conditions 50 ± 2 °Cand 13 2% relative humidity a heat pump dehumidifier system. The fluidization behaviour was also evaluated at 10 levels moisture content. experiments demonstrated that minimum velocity decreases proceeds due to reduced content changes particulates. Empirical relationships following nature developed for change [VR = 1 − Be−kMR], [ρp A + BMR C exp(− D MR)]; a1 b1MR c1MR2] porosity [ɛ a2 b2MR c2MR2] with fluidized