Abstract
A 2D, unsteady-state mathematical model was used to simulate the behaviour of wood torrefaction. The model is based on Luikov’s approach and solves a set of coupled heat and mass transfer equations. The model equations are solved numerically for the temperature and moisture content histories under different treatment conditions. A parametric study was carried out over the range of 0.05 < Lu < 1, 0.01< Ko < 2, where Lu and Ko are the Luikov and Kossovitch numbers respectively. Profiles of moisture content and temperature have been predicted as a function of time and the governing parameters. It is shown that the governing dimensionless parameters have a considerable influence on the kinetics of the heat and moisture transfer.
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