Numerical investigation of the effects of some selected thermo-physical properties on products evolution and yields during biomass pyrolysis

摘要: ABSTRACTEffects of some selected biomass thermo-physical properties (biomass density, thermal conductivity and char conductivity) on the evolution yields pyrolysis products have been investigated. Wood cylinders were modelled as porous solids. Transport, solid mass conservation, intra-particle pressure generation energy conservation equations coupled simultaneously solved to simulate process. The first-order implicit Euler method was used solve equations. transport, discretized by finite volume method. generated set linear using tri-diagonal matrix algorithm. Effects investigated weight loss history, evolution, temperature gradient tar secondary reactions. Total gas then estimated. Results show that thermo-ph...