QD128燃气轮机燃料适应性试验研究  

Experimental Study on Fuel Adaptability of QD128 Gas Turbine

作　　者：徐丽[1] 孙丽艳 

机构地区：[1]沈阳理工大学机械工程学院,沈阳110034 [2]中航沈阳黎明航空发动机有限责任公司,沈阳110003

出　　处：《汽轮机技术》2015年第1期43-45,共3页Turbine Technology

基　　金：国家863项目(2002AA503010/ZXD0705)

摘　　要：采用试验手段完成了QD128航改燃机燃用轻柴油燃料的适应性研究。试验结果表明:喷嘴雾化锥角对燃料物性改变不敏感,基本稳定;流量受黏度、密度共同影响,设计工况流量减小约3%;黏度增加导致雾化粒度增大约8μm;改用柴油后点火性能依旧良好,贫油点火范围宽。进气温度升高,贫油点火极限略增加。以上数据为航机改型提供了可靠的技术依据。Experimental study on fuel adaptability of QD 128 Gas Turbine was finished .The results indicated： the nozzle spray cone angle is not insensitive with fuel properties change and keep stable .Flow rate is effected combined with viscosity and density,flow rate decreases about 3%under the design condition .SMD increases about 8μm because of the increasing of viscosity.The ignition performance is still good after switch to diesel ,lean ignition limit slightly wider with the rising of intake air temperature .The data provide a reliable technical basis to aircraft modifications .

关 键 词：燃气轮机 喷嘴 雾化特性 点火特性 

分 类 号：TK474[动力工程及工程热物理—动力机械及工程]