进口温度影响航空煤油结焦特性实验  

Experimental study of influence of inlet temperature on aviation kerosene coking characteristics

作　　者：王英杰[1] 徐国强[1] 邓宏武[1] 罗翔[1] 王勤[1] 

机构地区：[1]北京航空航天大学能源与动力工程学院航空发动机气动热力国家重点实验室,北京100191

出　　处：《航空动力学报》2009年第9期1972-1976,共5页Journal of Aerospace Power

基　　金：国家自然科学基金(50676005)

摘　　要：实验研究了超临界压力下航空煤油RP-3的氧化结焦特性.实验系统压力5 MPa,RP-3质量流速4 g/s,实验段为外径2.2 mm、内径1.8 mm不锈钢管(材质:1Cr18Ni9Ti).通过改变进口温度80,100,127℃和150℃,研究了进口油温对RP-3氧化结焦的影响.实验采用近似等热流加热方式,管内壁面结焦通过称质法测量.实验结果表明:随进口温度的升高,结焦速率峰值位置大都向上游推移,且峰值高度有所增加;管内结焦总量随进口油温的升高先增加,当进口油温超过127℃后,管内结焦总量基本保持不变.Experiments were performed to study the influence of the inlet temperature on RP-3 coke deposition characteristics.The flowing RP-3 was stressed to 5MPa,and heated up to 427℃ in a stainless steel tube(inner diametr 1.8mm,outer diametr 2.2mm,1Cr18Ni9Ti) with constant heat flux.The inlet temperature was investigated at 80,100,127℃ and 150℃.The amount of surface coke deposition was measured by weighing method.And the results show that,as RP-3 inlet temperature increases,coke deposition peaks shifts upstream an...

关 键 词：结焦 进口温度 超临界压力 冷却 

分 类 号：V31[航空宇航科学与技术—航空宇航推进理论与工程]