抄録
Due to the high heat transfer and mixing efficiency of particles, fluidized bed technology was used for many thermo-chemical processes such as chemical, power generation, petroleum and thermal conversion process. Because the performance of a fluidized bed is influenced by characteristics of fluidization, understanding the hydrodynamic characteristics of complex gas-solid flow in fluidized bed is significant research. These basics can provide the improvement of reactor design, scale-up and experimental condition. Hence various measurement methods have been applied to investigate gas-solid flow systems. Among these techniques, electrical capacitance volume tomography (ECVT) technique is a newly developed imaging technique. This imaging technique generates a whole volumetric three-dimensional image of the sensing area using the measured capacitance. In addition ECVT shows a real-time 3-D volume image. From the volumetric image in fluidized bed, the researchers understand the solid distribution and behavior in the fluidized bed intuitionally. In this study, to investigate the particles behavior in a circulating fluidized bed (CFB) reactor, ECVT analysis was performed.
