北京航空航天大学学报 ›› 2010, Vol. 36 ›› Issue (3): 257-260.

• 论文 • 上一篇    下一篇

压力对航空煤油RP-3结焦的影响

琚印超, 徐国强, 郭 隽, 王英杰   

  1. 北京航空航天大学 航空发动机气动热力重点实验室, 北京 100191
  • 收稿日期:2009-04-16 出版日期:2010-03-31 发布日期:2010-09-13
  • 作者简介:琚印超(1985-),男,浙江龙游人,硕士生,woshixiaoju@yahoo.com.cn.
  • 基金资助:

    国家自然科学基金资助项目(Grant NO.50676005/E060303)

Effects of pressure on the coking characteristic of jet fuel RP-3

Ju Yinchao, Xu Guoqiang, Guo Jun, Wang Yingjie   

  1. National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2009-04-16 Online:2010-03-31 Published:2010-09-13

摘要: 实验研究航空煤油RP-3在流动状态下的结焦分布情况,并分析了压力对于氧化结焦的影响.实验中采用恒定热流的方式将流经长2m的单通道不锈钢管( Ф 2.2×0.2,1Cr18Ni9Ti)中的航空煤油由127℃加热到427℃,质量流量4g/s,并利用"称重法"获得RP-3结焦数据.通过改变系统压力3,4,5,6,7MPa,研究了压力对RP-3壁面结焦速率的影响规律.实验结果表明,压力的提高,对管壁的结焦有一定的抑制作用,结焦峰值位置也有沿实验段往下游移动的趋势,不同压力情况下的管壁结焦速率分布曲线的形状大致相当.

Abstract: The influences of pressure on the surface coke deposition of RP-3 were studied by experiments. The flowing RP-3 is heated up to supercritical state in a 2m long single-pass stainless steel tube( Ф 2.2×0.2, 1Cr18Ni9Ti) with constant heat flux. The mass flow is 4g/s. The mount of surface coke deposition was obtained by weighting method. The influences of pressure on RP-3 surface coke deposition rate were investigated by changing the pressure. The result shows that the greater pressure can suppress coke deposition to a certain extent; the location of coking peak value tends to move backwards along the experimental segment; the shapes of surface coke deposition distribution curve under different pressure are the same.

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