Numerical study on laminar burning velocity and ignition delay time of ammonia flame with hydrogen addition

doi:10.1016/j.energy.2017.03.085

GIEC OpenIR > 中国科学院广州能源研究所

	Numerical study on laminar burning velocity and ignition delay time of ammonia flame with hydrogen addition
	Li, Jun 1; Huang, Hongyu 2,3; Kobayashi, Noriyuki 1; Wang, Chenguang 2,3; Yuan, Haoran2,3
	2017-05-01
发表期刊	ENERGY
卷号	126 页码:796-809
摘要	This study focuses on the application of NH3 as a carbon-free alternative fuel in internal combustion devices. The two key parameters for fuel combustion, namely, laminar burning velocity and ignition delay time of the NH3 flame at various H-2 blending levels, are numerically investigated. Results show that the selected modified Dagaut-Keromnes mechanism is acceptable and repeatable for calculating the burning velocity and ignition delay time of NH3-air flame at various H-2 addition conditions. H-2 addition increases the reactivity of NH3 combustion at all conditions and enhances the burning velocity. This enhancement is mainly due to chemical effect caused by the reduction in chemical activation energy and the transport effect resulting from the high mobility of H-2. Furthermore, an increase in pressure and H-2 addition ratios can significantly decrease the ignition delay time of NH3 mixtures and promote NH3 ignition. The enhancement of H-2 addition on NH3 ignition and laminar burning velocity is mainly attributed to the contribution of the three following reactions: O + H-2 = OH + H, H + O-2 = OH + O, and H-2 + OH = H2O + H. These reactions can significantly increase the concentration of free radicals and accelerate the peak of radicals. (C) 2017 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Laminar Burning Velocity Ignition Delay Time Ammonia Flame Hydrogen Addition
WOS标题词	Science & Technology ; Physical Sciences ; Technology
DOI	10.1016/j.energy.2017.03.085
研究领域[WOS]	Thermodynamics ; Energy & Fuels
关键词[WOS]	PERFORMANCE-CHARACTERISTICS ; COMBUSTION CHARACTERISTICS ; FLAMMABILITY LIMITS ; ELEVATED PRESSURES ; TEMPERATURE ; OXIDATION ; MIXTURES ; ENGINE ; AIR ; CHEMISTRY
收录类别	SCI
语种	英语
WOS类目	Thermodynamics ; Energy & Fuels
WOS记录号	WOS:000404305900062
引用统计	被引频次：92[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/14154
专题	中国科学院广州能源研究所
作者单位	1.Nagoya Univ, Dept Chem Engn, Nagoya, Aichi 4648603, Japan 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Li, Jun,Huang, Hongyu,Kobayashi, Noriyuki,et al. Numerical study on laminar burning velocity and ignition delay time of ammonia flame with hydrogen addition[J]. ENERGY,2017,126:796-809.
APA	Li, Jun,Huang, Hongyu,Kobayashi, Noriyuki,Wang, Chenguang,&Yuan, Haoran.(2017).Numerical study on laminar burning velocity and ignition delay time of ammonia flame with hydrogen addition.ENERGY,126,796-809.
MLA	Li, Jun,et al."Numerical study on laminar burning velocity and ignition delay time of ammonia flame with hydrogen addition".ENERGY 126(2017):796-809.