We examined the effect of pelletizing conditions on fuel conversion behaviour by combusting single pine pellet in a laboratory-scale combustion furnace.
Time required for single pellet combustion generally increased with pelletizing temperature. However, temperature had little effect on combustion time in the pelletizing temperature range of 100°C and 150°C. Pellets produced with wet biomass (moisture content: 12%) required longer combustion time than pellets produced with oven-dried biomass (moisture content:1%). The change in fuel conversion time was explained by the physical property because chemical property (intrinsic reactivity) was not affected by pelletizing condition.
During the densification processes, pelletizing temperature and moisture content played significant role in the increase of pellet density. However, particle deformation could not be explained only by these pelletizing conditions. Possible explanations are pelletizing pressure and change in particle flow pattern by the shape of dies.
in the low density region (