中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Prediction of nano/micro aluminum particles ignition in oxygen atmosphere

文献类型:期刊论文

作者Zou XR2; Wang NF2; Liao LJ(廖丽涓)1; Chu QZ2; Shi BL2
刊名FUEL
出版日期2020-04-15
卷号266页码:11
ISSN号0016-2361
关键词Nano/micro aluminum particles Ignition temperature Ignition delay time Heat transfer Oxidation
DOI10.1016/j.fuel.2019.116952
通讯作者Liao, Lijuan(liaohuanxin@hotmail.com) ; Shi, Baolu(smashingsky@hotmail.com)
英文摘要Ignition prediction of aluminum particle is of great significance for a variety of propulsion and power systems to achieve optimal energy release within a limited residence time. In this study a heat transfer model employing temperature dependent coefficients was developed and validated to describe the heat exchange between quiescent/flow gas and aluminum particles from nano- to micro-size, covering the free-molecular to continuum regimes. By coupling heat transfer and aluminum oxidation, a theoretical model has been proposed to accurately capture ignition properties of both aluminum nanoparticle and microparticle (ANP and AMP) burning in hot oxygen atmosphere. Two formulas were obtained to predict the ignition temperature and ignition delay time for nano/micro particles, which show good agreements with experimental results, providing a convenient and accurate method for practical application. A parametric study illustrates that AMP ignition is affected by bulk flow velocity, radiation and oxygen concentration, particularly for AMP over 100 mu m in diameter; in contrast, ANP is more sensitive to alumina thickness which generally raises both ignition temperature and ignition delay time. The present study not only deepens the fundamental understanding of aluminum combustion but also provides a guideline for prompting ignition.
分类号一类
WOS关键词MELT DISPERSION MECHANISM ; HEAT-TRANSFER ; THERMAL-CONDUCTIVITY ; COMBUSTION ; OXIDATION ; TEMPERATURE ; GAS ; ENERGY ; SPHERE ; ARGON
资助项目Domain Foundation of Equipment Advance Research of 13th Five-year Plan[61407200201] ; National Natural Science Foundation of China[11672314] ; National Natural Science Foundation of China[51676016] ; National Natural Science Foundation of China[11972087]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000510603500072
资助机构Domain Foundation of Equipment Advance Research of 13th Five-year Plan ; National Natural Science Foundation of China
其他责任者Liao, Lijuan ; Shi, Baolu
源URL[http://dspace.imech.ac.cn/handle/311007/81619]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 BeiSihuan West Rd, Beijing 100190, Peoples R China
2.Beijing Inst Technol, Sch Aerosp Engn, 5 Zhongguancun South St, Beijing 100081, Peoples R China;
推荐引用方式
GB/T 7714
Zou XR,Wang NF,Liao LJ,et al. Prediction of nano/micro aluminum particles ignition in oxygen atmosphere[J]. FUEL,2020,266:11.
APA Zou XR,Wang NF,廖丽涓,Chu QZ,&Shi BL.(2020).Prediction of nano/micro aluminum particles ignition in oxygen atmosphere.FUEL,266,11.
MLA Zou XR,et al."Prediction of nano/micro aluminum particles ignition in oxygen atmosphere".FUEL 266(2020):11.

入库方式: OAI收割

来源:力学研究所

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