Bubblig Fluidized Bed Combustor (Dept.M)

Abstract

A Bubbling Fluidized Bed Combustor (BFBC) is designed and set-up to investigate the combustion processes of sub-bituminous Egyptian coal particles and wood. The effect of changing the coal particles size, with keeping the fluidized air velocity constant, on: gas temperatures, heat flux to the combustor wall, radiant-convective overall heat transfer coefficient and combustion level of coal particles is investigated. The highest combustion level is found at coal particles size of 17 mm. The heat transfer coefficient in the case of coal combustion is extremely greater by 500% than that of wood combustion.