In conclusion, by using small-scale combustor for the applications where high rate of heat energy is required, smaller size, low sphericity and low moisture
content particle materials such as sawdust is highly recommended. In case of stable and log lasting
heat energy applications high energy content, moderate particle size and high sphericity particle
materials are suitable. This understanding can help the engineers, designers and users of biomass
combustion systems to choose the right biomass materials for any
specific heating application.