<p>Combustion characteristics of aluminum particle jet flames in a hot co-flow</p>

doi:10.1016/j.cej.2022.135876

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Combustion characteristics of aluminum particle jet flames in a hot co-flow
	Zhang, Jiarui 3; Xia, Zhixun 3; Stein, Oliver T.; Ma, Likun 3; Li, Fei 1; Feng, Yunchao 3; Zhang, Zihao 3; Kronenburg, Andreas 2
刊名	CHEMICAL ENGINEERING JOURNAL
	2022-08-15
卷号	442 页码:13
关键词	Energy carrier Aluminum(Al) particle combustion Particle cloud Jet flame Tunable diode laser absorption spectroscopy
ISSN号	1385-8947
DOI	10.1016/j.cej.2022.135876
通讯作者	Ma, Likun(malikun@nudt.edu.cn)
英文摘要	Aluminum (Al) powder has been proposed as a promising dense energy carrier to store and transport abundant renewable power for a future carbon-neutral society. In this work, a detailed model for simulating Al particle cloud combustion with multiple oxidizers in the context of large eddy simulation is developed. The Al particles are tracked in the lagrangian framework with various sub-models including phase change, heterogeneous surface reaction, evaporation and radiation. The model is then employed to simulate turbulent jet flames with Al particles (d(32) = 25 mu m) in a hot co-flow. Tunable diode laser absorption spectroscopy (TDLAS) is used to measure the temperature and H2O distribution. The present model is first validated by comparing the predicted condensed Al2O3 distribution with the measured Mie scattering signals. The results indicate that the simulation results are in good agreement with the experimental measurements. Further comparisons of the temperature and H2O profile are then conducted. The numerical simulation predicts weaker mass and heat transport in the upstream and middle of the flame along the centerline of the burner, compared with the reconstructed TDLAS results, but the downstream scalar profiles of the jet flame agree well with the measurements. Discrete characteristics are observed in the simulated instantaneous temperature and condensed Al2O3 snapshots, which are due to the nature of heterogeneous combustion of metal fuel particles under fuel-lean conditions. Finally, the influence of the oxidizer mole fraction and the initial temperature of the primary jet on the ignition distance is analyzed. The results demonstrate that the ignition distance can be decreased effectively by increasing the oxidizer concentration of the hot co-flow or the initial temperature of the Al particles and carrier gas.
资助项目	National Natural Science Foundation of China[52006240] ; Hunan Provincial Natural Science Foundation of China[2020JJ4665] ; Hunan Provincial Natural Science Foundation of China[2021JJ30775] ; China Scholarship Council[201903170201]
WOS关键词	LARGE-EDDY SIMULATION ; COMBUSTION ; MODEL ; IGNITION ; SPRAY
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000797831300005
资助机构	National Natural Science Foundation of China ; Hunan Provincial Natural Science Foundation of China ; China Scholarship Council
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89471]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Ma, Likun
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Univ Stuttgart, Inst Tech Verbrennung, Pfaffenwaldring 31, D-70569 Stuttgart, Germany 3.Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha 410073, Hunan, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jiarui,Xia, Zhixun,Stein, Oliver T.,et al. Combustion characteristics of aluminum particle jet flames in a hot co-flow [J]. CHEMICAL ENGINEERING JOURNAL,2022,442:13.
APA	Zhang, Jiarui.,Xia, Zhixun.,Stein, Oliver T..,Ma, Likun.,Li, Fei.,...&Kronenburg, Andreas.(2022). Combustion characteristics of aluminum particle jet flames in a hot co-flow .CHEMICAL ENGINEERING JOURNAL,442,13.
MLA	Zhang, Jiarui,et al." Combustion characteristics of aluminum particle jet flames in a hot co-flow ".CHEMICAL ENGINEERING JOURNAL 442(2022):13.