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Ignition and combustion behavior of gel fuel particles with metal and non-metal additives
Acta Astronautica ( IF 3.1 ) Pub Date : 2022-11-18 , DOI: 10.1016/j.actaastro.2022.11.027
D.O. Glushkov , K.K. Paushkina , A.O. Pleshko , V.A. Yanovsky

A group of elastically deformable gel fuel compositions was prepared from oil-filled cryogels with fine particles (Al, Cu, Fe, carbonaceous, inert) and without them. Fuel particles exposed to radiant heating at an oxidizer temperature of 600–1000 °C consistently ignited with dispersion that had a positive effect on the intensity of the fuel component burnout. For different fuel compositions, the ignition delay times vary from 1 to 10 s, the velocities vary from 0.3 to 1.4 m/s, and the average diameters of the burnout area vary from 7 to 15 mm. At heated air temperatures above 900 °C, the ignition delay times are quite similar. Within the whole range of source temperatures, the fuel composition with fine carbonaceous particles ignites most rapidly. The gel fuel composition with Al particles is characterized by the highest ignition delay times and lowest velocities of fine fragments.



中文翻译:

具有金属和非金属添加剂的凝胶燃料颗粒的着火和燃烧行为

一组可弹性变形的凝胶燃料组合物由含细颗粒(Al、Cu、Fe、碳质、惰性)和不含细颗粒的充油冷冻凝胶制备。在 600–1000 °C 的氧化剂温度下暴露于辐射加热的燃料颗粒会持续点燃并分散,这对燃料成分的燃尽强度有积极影响。对于不同的燃料成分,点火延迟时间从 1 到 10 s 不等,速度从 0.3 到 1.4 m/s 不等,燃尽区的平均直径从 7 到 15 mm 不等。在 900 °C 以上的加热空气温度下,点火延迟时间非常相似。在源温度的整个范围内,具有细碳质颗粒的燃料组合物点燃得最快。

更新日期:2022-11-19
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