【作者】 潘玄； 段伦博； 赵伶玲； 韩冬； 胡海华；

【Author】 PAN Xuan;DUAN Lunbo;ZHAO Lingling;HAN Dong;HU Haihua;School of energy and environment,Southeast university;

【机构】 东南大学能源与环境学院能源热转换及其过程测控教育部重点实验室；

【摘要】 利用热重分析法对稻壳和煤及其混合物的富氧燃烧特性进行实验研究,探讨了氧气浓度、稻壳和煤的掺混比和升温速率等因素对燃烧特性的影响。结果表明:随着氧气浓度的增加,TG/DTG曲线均往低温区移动,着火温度和燃烬温度均减小,综合燃烧特性指数增大;随着掺混比增加,失重曲线向低温区平移,挥发分失重峰值增加,着火温度和燃烬温度都降低,总的燃烧效果明显改善;随着升温速率的增大,燃烧过程后移,燃烧最大失重率增大,燃烧更趋激烈。更多还原

【Abstract】 Combustion characteristics of coal,rice husk and their blends were analyzed under O₂/CO₂ Atmosphere through the TG-DTG method.The influence of oxygen concentration,blending ratio and heating rate on the combustion characteristics was studied.The results show that with the increase of the oxygen concentration,the TG/DTG curves moves to the lower temperature zone,the ignition temperature and burnout temperature both decrease,and the integrated combustion property improves.The increase of the husk ratio makes the peak value of the weight loss increase and the ignition and burnout temperature go down,which overall improves the fuel combustion property.As the heating rate goes up,the combustion process is delayed to the higher temperature zone,while the maximum weight loss increases.The combustion becomes more intense.更多还原