### Defining Uncertainties in the Size of Ground Biomass Particles

L.J. Naimi, S Sokhansanj & A.R. Womac
Preparation of biomass for conversion to heat and chemicals involves a number of operations including drying, size reduction, and fractionation. Among them, size reduction is an important operation because it consumes relatively high amount of energy in the form of electric power. Depending upon conversion technologies (combustion, gasification, pyrolysis and densification), a specific particle size would provide optimum yield of the highest quantity product. Biomass particles and especially those herbaceous have a large aspect ratio...