稀释合成气微混合燃料喷射燃烧火焰特性研究  

Characteristic Study on Syngas Flames with Combined CO_2 Dilution and Micro-mixing Injection Combustion

作　　者：张永生[1] 张海龙[1] 田龙[1] 付忠广[1] 张锴[1] 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,北京102206

出　　处：《动力工程学报》2015年第1期45-49,69,共6页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金资助项目(51006036);国家科技支撑计划资助项目(2013BAA02B01)

摘　　要：研究了耦合CO2稀释和微混合燃料喷射燃烧的火焰特性.结果表明:耦合CO2稀释和微混合燃料喷射燃烧是一种降低合成气扩散火焰NOx生成量的有效途径;实验范围内排放的NOx质量浓度一般低于2mg/m3,排放的CO质量浓度低于10mg/m3,排放的CO质量浓度随火焰热功率的增大而降低;燃烧器出口温度、壁面温度和喷嘴出口温度等均随火焰热功率的增大而升高.A characteristic study was conducted to syngas flames with combined CO2 dilution and micro- mixing injection combustion. Results show that the combined CO2 dilution and micro-mixing injection com- bustion is an effective way to reduce the NOx emission from syngas diffusion flames. Under experimental conditions, the emission of NOx is lower than 2 mg/ma , and the emission of CO is lower than 10 mg/ma , while the latter decreases with the rise of flame power; the temperature respectively at combustor exit, furnace wall and nozzle exit increases with the rise of flame power.

关 键 词：合成气火焰 稀释燃烧 微混合燃料 喷射燃烧 NOx 

分 类 号：TK47[动力工程及工程热物理—动力机械及工程]