Effect of Particle Size on Combustion of Coconut Shell in a Bubbling Fluidized Bed Combustor

ABSTRACT

Combustion characteristics of coconut shell (CS) samples in an experimental model bubbling fluidized bed combustor (BFE3C) was investigated with special focus on effect of particle size of the CS. CS waste obtained from farm were crushed and classified into three sizes; Size X (12-50mm). SizeY (2-12mm) and Size Z (c2mm). For overbed feeding of the feedstock, the impact of the particle size on emission and combustion performance were examined. in a 150m diameter experimental model BFBC. Throughout the investigation inert bed temperature was fixed to a constant value of 750 OC .by means of electronic based inert bed temperature regulating unit (ITRU). Results showed that CS particle size have pronounced impact on combustion characteristics and the pollutants emission from the BFBC. It was observed that the Pollutants' emission was within acceptable limits for Size Y at about 3 1Oppm for CO,