生物质微米燃料富氧燃烧特性分析

Combustion Characteristics of Biomass Micron Fuel under Oxygen-Rich Conditions

采用热重分析法对生物质微米燃料在不同体积分数氧条件下的燃烧特性进行研究,结果表明:随着氧体积分数的增加,生物质微米燃料的挥发分初析出温度、着火温度和燃尽温度不断降低,可燃性增强;平均和最大质量损失速率呈增加趋势,提高了燃烧强度。燃烧特性指数随着氧体积分数的增加而变大,当氧体积分数达到60%后,改善趋势变缓。

Thermogravimetry experiments were performed on biomass micron fuel under oxygen-rich conditions. Results show that, with oxygen concentration increasing, the volatile releasing temperature, ignition temperature and burnout temperature of the biomass micron fuel decreased, the flammability enhanced, and the maximum and the average mass loss rates increased. The integration index of combustion characteristics also gradually increased with oxygen concentration increasing, while the increasing tendency tended to be slow when the oxygen concentration exceeded 60 percent.