【摘要】 用激光相位多普勒技术测量循环流化床中的颗粒运动特性吕清刚，杨涛，潘忠刚（中国科学院工程热物理研究所北京１０００８０）关键词：循环流化床，气固两相流动，激光相位多普勒颗粒动态分析仪１引言循环流化床燃烧装置已经得到了广泛的应用，但是由于流化床内的气固两相...更多还原

【Abstract】 Particle size, velocity and mass flux measurements of air solid flow in cold model of a CFB combustor that has the cross section of 400×250mm and height of 2400 mm were performed using 2-D PDPA. Multisize glass spheres of 590￣ 105μm diameter have been used. The results indicate that a internal circulation of particle in the combustor exists.The direction of circulation is that particles is upflow in the centrial range, downflow near walls. The mean particle velocity is much smaller than the superficial air velocity inside the combustor.更多还原