Experimental of Thermal Degradation and Ignition of Wood by Thermal Radiation

A set of experiments were firstly conducted on pyrolysis and ignition of wood of several species under different heat flux,species and as well as on the effect of moisture content under normal conditions.Temperature profiles,mass loss rate,ignition time,ignition temperature and critical heat flux were all examined in the experiments.Effect of water evaporation inside the wood on temperature distribution and solid convertion was further discussed.Finally,the critical heat flux,another key ignition characteristics, was obtained from experimental data,which was 25 kW/m2 for wood under normal conditions regardless of the species.