K-1417 Experimental Study on Particle Forces on In-bed Bodies in Bubbling Fluidized Beds

Abstract

In bubbling-type fluidized beds, because of violent motions of the bed particles, in-bed bodies tend to be often violently excited, and/or happen to be seriously eroded, both, in the worst case, resulting in mechanical failures or plant outage. In some cases the beds induce bodies of various sizes and various masses, whose circulation within the bed should be controlled intentionally, if possible. In the situation, information on the forces exerted on in-bed bodies are indispensable. For the purpose, measurements of force and relevant quantities were conducted on spheres as target in a small experimental fluidized bed.