固体火箭技术2024，Vol.47Issue(6)：794-802,9.DOI:10.7673/j.issn.1006-2793.2024.06.006
铝基纳米流体燃料火焰与壁面相互作用中碳烟生成特性研究
Study on soot formation characteristics during diffusion flame-wall interactions of aluminum-based nanofluid fuel
摘要
Abstract
Nanofluid fuel has attracted wide attention due to its good thermal conductivity,high energy density,and high com-bustion efficiency.In this study,the combustion particulate matter was characterized using a variety of techniques methods,inclu-ding transmission electron microscopy(TEM),X-ray diffraction experiments(XRD),Raman spectrum(Raman),and X-ray pho-toelectron spectroscopy(XPS).The soot formation characteristics,morphology,and graphitization degree of 2.5%aluminum/etha-nol nanofluid under different wall stagnation heights and collection times were studied by using an ethylene diffusion flame as sup-port flame,and the mechanism of metal nanoparticles and soot was analyzed.The results indicate that,under the same stagnation plate height and collection time,the addition of aluminum nanoparticles promote growth and oxidation of soot on the surface of alu-minum aggregates,effectively enhancing soot particle formation.Furthermore,the addition of aluminum nanoparticles increase the possibility of collision between particles,while increasing the internal ordering degree in the microcrystals of soot particles and in-creasing the graphitization degree.关键词
金属颗粒/纳米流体/碳烟颗粒/火焰与壁面作用/燃烧诊断Key words
metal particle/nanofluid/soot/flame-wall interactions/combustion diagnosis分类
航空航天引用本文复制引用
于润田,刘冬,杨凯旋,齐丹丹,任航,刘冠楠,应遥瑶..铝基纳米流体燃料火焰与壁面相互作用中碳烟生成特性研究[J].固体火箭技术,2024,47(6):794-802,9.基金项目
国家自然科学基金项目(52076110). （52076110）
