Effect of Turbulence and Diffusional-Thermal Instability on Hydrogen-Rich Syngas Turbulent Premixed Flame

doi:10.1002/ente.202300895

	Effect of Turbulence and Diffusional-Thermal Instability on Hydrogen-Rich Syngas Turbulent Premixed Flame
	Zhang GP(张国鹏); Li, GuoXiu; Li, HongMeng; Cao, JianBin
通讯作者	Li, Guo-Xiu(gxli@bjtu.edu.cn) ; Li, Hong-Meng(hongmengli@bjtu.edu.cn)
发表期刊	ENERGY TECHNOLOGY
	2023-10-25
页码	13
ISSN	2194-4288
摘要	As a kind of fuel with low-carbon emissions, hydrogen-rich syngas has a large resource potential and is a promising alternative energy resource. A series of experiments in a constant volume combustion bomb are carried out to investigate the effects of turbulence and diffusional-thermal (DT) instability on a hydrogen-rich syngas turbulent premixed flame. The flow field in the constant volume combustion bomb is calibrated, and the turbulent flow field's homogeneity and isotropy were investigated. The effects of different speeds of fan (1366-4273 rpm), hydrogen fractions (55%-95%), pressures (1.0-3.0 bar), and equivalence ratios (0.6-1.0) on the hydrogen-rich syngas turbulent premixed flame are studied. According to the analyses, the flow field in the experimental device exhibits good homogeneous and isotropic characteristics. With the increase of turbulence intensity, equivalence ratio, hydrogen fraction, or pressure, the turbulent flame propagation speed increases gradually. As the hydrogen fraction increases or the equivalence ratio decreases, the effective Lewis number decreases, and the effect of DT instability on the flame increases. The research in this article is crucial for the clean and efficient utilization of hydrogen-rich syngas and the design of related burners. In this work, a stable and uniform isotropic turbulent flow field is established. The flame evolution and propagation speed of hydrogen-rich syngas are evaluated. The influence of turbulence intensity, equivalence ratios, pressures, and hydrogen fractions on flame propagation characteristics are studied and the influence of diffusional-thermal instability on flame propagation speed is analyzed.image (c) 2023 WILEY-VCH GmbH
关键词	diffusional-thermal instability flame propagation speed hydrogen-rich syngas turbulent premixed flame
DOI	10.1002/ente.202300895
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001090380200001
关键词[WOS]	HIGH-PRESSURE ; BURNING VELOCITIES ; SCALAR DISSIPATION ; SPHERICAL FLAMES ; COMBUSTION ; FUEL ; LAMINAR ; SPEED ; PROPAGATION ; VESSEL
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
资助项目	This work is supported by the Fundamental Research Funds for the Central Universities (Grant No.2022YJS084) and the National Natural Science Foundation of China (Grant No. 51706014).[2022YJS084] ; Fundamental Research Funds for the Central Universities[51706014] ; National Natural Science Foundation of China
项目资助者	This work is supported by the Fundamental Research Funds for the Central Universities (Grant No.2022YJS084) and the National Natural Science Foundation of China (Grant No. 51706014). ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China
论文分区	Q3
力学所作者排名	1
RpAuthor	Li, Guo-Xiu ; Li, Hong-Meng
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/93247
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Zhang GP,Li, GuoXiu,Li, HongMeng,et al. Effect of Turbulence and Diffusional-Thermal Instability on Hydrogen-Rich Syngas Turbulent Premixed Flame[J]. ENERGY TECHNOLOGY,2023:13.
APA	张国鹏,Li, GuoXiu,Li, HongMeng,&Cao, JianBin.(2023).Effect of Turbulence and Diffusional-Thermal Instability on Hydrogen-Rich Syngas Turbulent Premixed Flame.ENERGY TECHNOLOGY,13.
MLA	张国鹏,et al."Effect of Turbulence and Diffusional-Thermal Instability on Hydrogen-Rich Syngas Turbulent Premixed Flame".ENERGY TECHNOLOGY (2023):13.

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