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航空发动机喷嘴结焦积碳的性质

黄艳斐 朱岳麟 熊常健 潘英杰

黄艳斐, 朱岳麟, 熊常健, 等 . 航空发动机喷嘴结焦积碳的性质[J]. 北京航空航天大学学报, 2011, 37(6): 753-756.
引用本文: 黄艳斐, 朱岳麟, 熊常健, 等 . 航空发动机喷嘴结焦积碳的性质[J]. 北京航空航天大学学报, 2011, 37(6): 753-756.
Huang Yanfei, Zhu Yuelin, Xiong Changjian, et al. Coking properties of aircraft engines- nozzles[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(6): 753-756. (in Chinese)
Citation: Huang Yanfei, Zhu Yuelin, Xiong Changjian, et al. Coking properties of aircraft engines- nozzles[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(6): 753-756. (in Chinese)

航空发动机喷嘴结焦积碳的性质

基金项目: 中国航空工业集团沈阳发动机设计研究院合作资助项目(2009-2918)
详细信息
    作者简介:

    黄艳斐(1986-),女,山东临沂人,硕士生,huangyanfei123@126.com.

  • 中图分类号: V 231.2+5

Coking properties of aircraft engines- nozzles

  • 摘要: 针对航空燃料燃烧时会在航空发动机喷嘴处产生大量结焦积碳,影响航空飞行器的飞行安全和使用寿命这一问题,研究了某型航空发动机喷嘴零部件上结焦积碳的生成情况.采用扫描电镜(SEM,Scanning Electron Microscope)、透射电镜(TEM,Transmission Electron Microscopy)、能谱仪(EDS,Energy Disperse Spectroscopy)以及X射线衍射技术(XRD,X-ray Diffraction)对结焦积碳的微观形态和性质进行了分析.结果表明:喷嘴零部件上生成的结焦积碳主要有两种形态:一种是丝状焦,另一种是颗粒状焦.其中,丝状焦只出现在零部件表面较光滑的位置,包括短纤维丝状焦和不定形丝状焦,是由金属催化作用所形成的;其形成与喷嘴零部件的结构、材质及表面粗糙度有关.颗粒状焦则主要集中在活塞表面,包括颗粒团聚状焦和颗粒分散状焦,是由催化作用与燃料热裂解共同作用所形成的.

     

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  • 收稿日期:  2010-03-24
  • 网络出版日期:  2011-06-30

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