Effect of particle size on optimum air levels required for packed bed combustion of biomass

Abstract

A relation between the particle size and excess air flow rate for packed bed combustion of biomass has been the objective of this research project. Particles of square cubes of different dimensions and different air flow rates have been used in a 40cm×40cm×80cm combustion chamber to determine the above mentioned relation. The combustion rate has been determined by measuring the rate of combustion of the packed bed. A probe was utilized to measure the flue gas temperature at the exit. A mathematical model is developed relating these parameters.