Experimental and numerical analysis of wood thermodegradation

摘要: Abstract Torrefaction is a thermal treatment step in temperature range of 210–240 °C, which aims to improve the dimensional stability and durability wood. The mass loss kinetics for torrefaction wood samples was studied using equipment specially conceived measure losses during treatment. Laboratory experiments were performed under nitrogen heating rates 0.1, 0.25, 1, 2 °C min−1. A mathematical model thermodegradation process used validated. Measurements distribution anhydrous on dry sample poplar an inert atmosphere different temperatures. formulation describing simultaneous heat transfers requires coupled nonlinear partial differential equations. These unsteady-state equations solved numerically by commercial package FEMLAB conditions. detailed discussion o...