Ambient Laboratory Coater for Advanced Gas Reactor Fuel Development

Bruns, Duane D. ; Counce, Robert M. ; Rojas, Irma D. Lima

University of Tennessee, Knoxville

关键词: Air;    Shallow Spouted Beds, Hydrodynamic Relationships, Fluidized Beds, Scaling Groups, Scaling Spouted Beds;    11 Nuclear Fuel Cycle And Fuel Materials;    Nuclear Fuels;    Design;   

DOI  :  10.2172/981929
RP-ID  :  DOE/ID/14659
RP-ID  :  FC07-05ID14659
RP-ID  :  981929

美国|英语

来源: UNT Digital Library

【 摘 要 】

this research is targeted at developing improved experimentally-based scaling relationships for the hydrodynamics of shallow, gas-spouted beds of dense particles.The work is motivated by the need to more effctively scale up shallow spouted beds used in processes such as in the coating of nuclear fuel particles where precise control of solids and gas circulation is critically important.Experimental results reported here are for a 50 mm diameter spouted bed containing two different types of bed solids (alumina and zirconia) at different static bed depths and fluidized by air and helium.Measurements of multiple local average pressures, inlet gas pressure fluctuations, and spout height were used to characterize the bed hydrodynamics for each operating condition.Follow-on studies are planned that include additional variations in bed size, particle properties, and fluidizing gas.The ultimate objective is to identify the most important non-dimensional hydrodynamic scaling groups and possible spouted-bed design correlations based on these groups.