欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
燃料在直圆管形状的微尺度燃烧器中进行预热燃烧,对比不同预热温度下的燃烧器工作性能,检验强化预热对促进微燃烧稳定的效果。实验选择燃料混合气体流量为0.12、0.24、0.36L/min,预热温度分别为室温23℃和250、500℃。实验结果显示,在室温,燃料混合气体流量0.12L/min下,燃烧器可燃极限当量比为0.339～3.639。预热温度上升到250℃时,可燃极限当量比范围增大到0.317～4.304。而预热温度500℃时,可燃极限当量比范围减小为0.453～1.706。在实验中测量燃烧器壁面温度,结合数值模拟研究内部燃烧过程。模拟结果显示,随预热温度上升,反应区域峰值温度上升。在流量0.24L/min,当量比为1,预热温度由室温上升至500℃时,峰值温度由1890K上升至2013K。实验结果证明适当预热可以提高反应温度,从而抑制热熄火。
英文摘要：
The effect of preheating was investigated in a straight-tube shape micro combustor. Performances of combustor were compared under conditions with different preheating temperature. The flow rates of the fuel feed amount were 0.12,0.24,0.36L/min,respectively. The preheating temperatures were environmental temperature （23℃）,250℃,500℃,respectively. Experimental results showed that with environmental temperature and 0.12L/min,the stability limit was 0.339~3.639. While the preheating temperature increased to 250℃,the stability limit extended to 0.317~4.304. At the preheating temperature of 500℃,the stability limit was 0.453~1.706. The temperature distribution on the combustor wall was measured,which was combined with numeric simulation to investigate the combustion process in the combustor. Simulation results indicated that the peak temperature in the reaction region increased with preheating temperature. At 0.24L/min and stoichiometry,while the preheating temperature increased from environmental temperature to 500℃,the peak temperature increased from 1890 to 2013K. It proved that the proper preheating could increase the reaction temperature,thus inhibited thermal extinction.
同期刊论文项目
同项目期刊论文
Physicochemical Characterizations and Desulfurization Properties in Coal Combustion of Three Calcium
Ceria as a catalyst for hydrogen iodide decomposition in sulfur-iodine cycle for hydrogen production
Experimental and modeling study on the influence of H2 addition on selective non-catalytic reduction
Catalytic mechanism of sodium compounds in black liquor during gasification of coal black liquor slu
期刊信息
位置：