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首页> 外文期刊>Journal of aerospace engineering >Combustion Characteristics of Paraffin-Polyethylene Blends Fuel for Solid Fuel Ramjet
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Combustion Characteristics of Paraffin-Polyethylene Blends Fuel for Solid Fuel Ramjet

机译：石蜡 - 聚乙烯的燃烧特性 - 聚乙烯共混燃料固体燃料拉米

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摘要

In this paper, a series of firing tests have been conducted via a connected pipe facility to investigate the influences of the paraffin blends fuel on combustion characteristics of solid-fuel ramjet engines. A three-dimensional (3D) scanner and scanning electron microscope (SEM) have been used to obtain the local regression rate and the morphology of the solid fuel after combustion, respectively. The results indicate that decreasing the inlet diameter increases the performance of a solid fuel ramjet (SFRJ), and increasing the paraffin concentration and decreasing the port diameter of the solid fuel can enhance the average regression rate but have negative effects on the performance. The SEM results indicate that increasing paraffin concentration can lead to the reduction of the size and quantity of the carbon particles attached and agglomerated at the fuel surface and also has a significant effect on the morphology of the fuel surface, such as the roughness and the separation between paraffin and high-density polyethylene for blended fuel.
机译：在本文中，通过连接的管道设施进行了一系列烧制试验，以研究石蜡混合燃料对固体燃料拉动引擎的燃烧特性的影响。三维（3D）扫描仪和扫描电子显微镜（SEM）分别用于获得燃烧后的局部回归率和固体燃料的形态。结果表明，降低入口直径增加了固体燃料拉姆喷嘴（SFRJ）的性能，并增加石蜡浓度并降低固体燃料的端口直径可以提高平均回归率，但对性能产生负面影响。 SEM结果表明，增加的石蜡浓度可以导致在燃料表面上附着和附着的碳颗粒的尺寸和量的减少，并且对燃料表面的形态具有显着影响，例如粗糙度和分离用于共混燃料的石蜡和高密度聚乙烯之间。

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