A mathematical model for moisture movement during continous and intermittent drying of Eucalyptus saligna

Abstract

A modified diffusion-based mathematical model is proposed to describe the moisture movement during continuous and intermittent drying of Eucalyptus saligna. This model includes the temperature change, the surface drying coefficient (βn) and 2 diffusion coefficients [from green to FSP (Df) and from FSP to dry condition (Do)] as important parameters. The final model expression obtained was M = exp (− 25 βn 2Dt/l2) with the βn used was 1.5807 kg m−2 s−1, the Df was 2.26 × 10−11 m2 s−1, and the Do was 5.85 × 10−12 m2 s−1. The range of temperature change between heating and non-heating phases in the intermittent drying regimes was from 24.9 to 31.8 °C. The R2 values obtained when the model was fi..