Abstract:In recent years, the forest fire disasters occur frequently, and cause great casualties and property losses. At present, there is a lack of research on the theoretical and model research of combustion characteristics of wood. In this paper, the typical pine wood was used as the as experimental material, the small-scale combustion experiments with different initial masses were carried out, and the combustion characteristic including mass loss rate and flame temperature were investigated. The results show that both the residual mass and the mass loss rate presented the trend of “decline slowly-decrease rapidly-stable gradually”. In the initial stage of pine combustion, the mass and mass loss rate of pine were inversely proportional. In the later stage of pine combustion, the mass was proportional to the mass loss rate. The growth trend of the heat-release rate at the initial stage conformed to the quantitative t2 model. The peak value and fluctuation degree of flame temperature were inversely proportional to the distance from the thermocouple to the fire source at the same condition, and the occurrence time of the temperature peak had the same trend with temperature fluctuation.