IMECH-IR  > 高温气体动力学国家重点实验室
Combustion states distinction of the methane/oxygen laminar co-flow diffusion flame at high pressure
Ge YF(葛逸飞); Li S(李森); Wei XL(魏小林)
Source PublicationFUEL
2019-05-01
Volume243Pages:221-229
ISSN0016-2361
AbstractCompared to turbulent combustion in practical combustion devices, a co-flow laminar diffusion flame is the simplest configuration from which the interactions between flow field and reactions can be readily studied. High pressure combustion experiments on the methane/oxygen laminar co-flow diffusion flame are conducted to distinguish combustion states from 0.2 to 4 MPa. The transition combustion state between the steady state and periodical pulsation combustion state is studied quantitatively. The results obtained using a Schlieren device show that the different formation heights of the vortices generated in the jet flame shear layer lead to different combustion states. Based on the combustion pressure and Froude number at the burner exit, the upper and lower limits for the transition combustion state are proposed as Fr-cr=9.8x10(-4)(p(r)-0.012)(-1.87) +/- 4.0x10(-5)(p(r)+ 0.026)(-2.48 The flame is in the steady combustion state when the flame Fr is smaller than the lower limit of Fr-cr. When the flame Fr is larger than the upper limit of Fr-cr, pulsation combustion takes place. For the pulsation combustion state, the relationship between the Strouhal number and Froude number is established as St=0.29xFr(-0.65).
KeywordDiffusion flame Co-flow Laminar Pulsation High pressure
DOI10.1016/j.fuel.2019.01.113
Indexed BySCI ; EI
Language英语
WOS IDWOS:000459431800024
WOS KeywordCOFLOW ; TRANSITION ; FREQUENCY ; MECHANISM ; BUOYANCY
WOS Research AreaEnergy & Fuels ; Engineering, Chemical
WOS SubjectEnergy & Fuels ; Engineering
Funding OrganizationNational Natural Science Foundation of China [91641115] ; Strategic Priority Research Program of Chinese Academy of Sciences [XDA17030100]
Classification一类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78461
Collection高温气体动力学国家重点实验室
Affiliation1.{Ge, Yifei、Li, Sen、Wei, Xiaolin} Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
2.{Ge, Yifei} Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ge YF,Li S,Wei XL. Combustion states distinction of the methane/oxygen laminar co-flow diffusion flame at high pressure[J]. FUEL,2019,243:221-229.
APA 葛逸飞,李森,&魏小林.(2019).Combustion states distinction of the methane/oxygen laminar co-flow diffusion flame at high pressure.FUEL,243,221-229.
MLA 葛逸飞,et al."Combustion states distinction of the methane/oxygen laminar co-flow diffusion flame at high pressure".FUEL 243(2019):221-229.
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