| 压力对航空煤油RP-3结焦的影响 |
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| 引用本文： | 琚印超,徐国强,郭隽,王英杰.压力对航空煤油RP-3结焦的影响[J].北京航空航天大学学报,2010,36(3):257-260. |
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| 作者姓名： | 琚印超 徐国强 郭隽 王英杰 |
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| 作者单位： | 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;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;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;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 |
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| 基金项目： | 国家自然科学基金资助项目(GrantNO.50676005/E060303) |
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| 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(Ф2.2×0.2,1Cr18N i9Ti)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3,4,5,6,7MPa,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.
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| 关 键 词： | 压力 航空煤油 结焦 热氧化 |
| 收稿时间： | 2009-04-16 |
Effects of pressure on the coking characteristic of jet fuel RP-3 |
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| Ju Yinchao,Xu Guoqiang,Guo Jun,Wang Yingjie.Effects of pressure on the coking characteristic of jet fuel RP-3[J].Journal of Beijing University of Aeronautics and Astronautics,2010,36(3):257-260. |
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| Authors: | Ju Yinchao Xu Guoqiang Guo Jun Wang Yingjie |
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| Institution: | National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | The influences of pressure on the surface coke deposition of RP-3 were studied by experi-ments. The flowing RP-3 is heated up to supercritical state in a 2 m long single-pass stainless steel tube(ΦP2. 2×.2, 1 Cr18Ni9Ti) with constant heat flux. The mass flow is 4 g/s. The mount of surface coke depo-sition was obtained by weighting method. The influences of pressure on RP-3 surface coke deposition rate wereinvestigated by changing the pressure. The result shows that the greater pressure can suppress coke depositionto 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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| Keywords: | pressure jet fuel coke deposition thermal oxidation |
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