Novel Multifunctional Optical-Fiber Probe :

Abstract

Due to the limitations of experimental equipment and techniques, very few studies have been conducted on the radial distribution of particle velocities in high-density circulating fluidized beds with solids circulation fluxes beyond
200 kgrm2
s. Part I of this article ŽLiu et al.. describes a newly developed optical-fiber probe capable of providing simultaneous measurements of particle concentration, particle velocity, and solids flux in flowing fluid
solid suspensions covering a wide range of conditions. In this article we present experimental results showing instantaneous local voidage, particle velocity, and solids flux, determined simultaneously in a high-density circulating fluidized-bed ŽCFB. riser.