An analysis of effects of fundamental quantitative parameters on condition of fluid bed in shell side of heat exchanger

摘要

Bubble,plug and turbulent structures of fluidized beds(particle size 0.9-10.9 mm)initial fluidization velocity 0.87-1.28 m/s)in a heat exchanger with insert were recorded by camera image anal,to det.the effect of material properties on the fluidization velocity during the combustion of solid fuels.With increasing the gas velocity,a transition of structures from bubble to turbulent one was evidenced.The phenomenon was also simulated numerically to calc.the surface concn.profiles.A satisfactory agreement of exptl.and calcd.data was obsd.