The drying of biomass fuel particles in fixed and moving beds with hot
gas or steam is considered both experimentally and theoretically. A s
ingle particle drying model is coupled with a model describing heat an
d moisture transfer in the gas phase of the bed. The size of the bed t
o reach a certain degree of drying depends mostly on the following par
ameters. particle size, particle moisture content, gas inlet temperatu
re, gas inlet moisture content and gas mass now rate.