Extinction of microgravity partially premixed flame aboard the Chinese Space Station

doi:10.1016/j.proci.2024.105574

IMECH-IR > 微重力重点实验室

	Extinction of microgravity partially premixed flame aboard the Chinese Space Station
	Wen, Yuzhe 1,2; Li, Longfei 1,2; Li, Xingxian 1,2; Luo, Lei 1,2; Chen, Tao 1,2; Zhang, Wenyi 1,2; Zhou, Hengyi 1,2; Chen, Shuqing 1,2; Sun, Yuhang 1,2; Shi, Jingzan 1,2; Huang, Xiangrong 1,3; Mevel, Remy 1,3; Wang SF(王双峰)4,5 ; Zheng, Huilong 6; Yang, Xiaofang 6; Zhang, Xiaowu 6; He, Yufeng 7; Du, Changshuai 7; Cao, Jiaokun 7; Liu, Yu Cheng 1,2,8
Corresponding Author	Liu, Yu Cheng([email protected])
Source Publication	PROCEEDINGS OF THE COMBUSTION INSTITUTE
	2024
Volume	40 Issue:1-4 Pages:7
ISSN	1540-7489
Abstract	The radiation and strain effect can be comparably influential in a partially premixed flame (PPF), especially in microgravity environments. The present study reports the first batch of combustion experiments aboard the Chinese Space Station. The experiments were conducted using a co-flow burner installed on the Gas Combustion Experiment Insert inside the Combustion Science Rack. With both in-orbit experiments and numerical simulations, transient dynamics of extinction in the non-premixed flames (NPFs) and PPFs are analyzed. Results suggested that the NPF branch in a PPF exhibits a "ring-like" structure with partially premixed hooks at its edges prior to global extinction. The extinction is associated with strain rate and radiation effect as analyzed by numerical simulation and comparison with the experimental results. The overall NPF branch exhibits a reduced range of equivalence ratios with two edges retracting in a premixed manner under the considerable influence of radiative heat loss. The contribution of strain and radiation effect for the local extinction is demonstrated through normalized flame stretch rate, radiative heat loss, and local Damkohler number. Results suggested that radiative heat loss for the edges of NPF region can occupy 40 % of the local heat release. A diminishing influence of the strain rate effect on flame propagation leads to a shift towards radiation-controlled extinction. The local radiative extinction at the end of the NPF region ultimately triggering the extinction of the entire NPF region.
Keyword	Partially premixed flame Non-premixed flame Radiation Microgravity Extinction
DOI	10.1016/j.proci.2024.105574
Indexed By	SCI ; EI
Language	英语
WOS ID	WOS:001278377100001
WOS Keyword	TURBULENT JET FLAMES ; DIFFUSION FLAMES ; COFLOW ; STABILIZATION ; TEMPERATURES
WOS Research Area	Thermodynamics ; Energy & Fuels ; Engineering
WOS Subject	Thermodynamics ; Energy & Fuels ; Engineering, Chemical ; Engineering, Mechanical
Funding Project	Space Application System of China Manned Space Program under project Laminar partially premixed flame stabilization, lift-off, and blow-off mechanisms ; National Key Research and Development Program of China[2021YFA0716201]
Funding Organization	Space Application System of China Manned Space Program under project Laminar partially premixed flame stabilization, lift-off, and blow-off mechanisms ; National Key Research and Development Program of China
Classification	一类
Ranking	3+
Contributor	Liu, Yu Cheng
Citation statistics
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/96209
Collection	微重力重点实验室
Affiliation	1.Tsinghua Univ, Ctr Combust Energy, Beijing 100084, Peoples R China; 2.Tsinghua Univ, Dept Energy & Power Engn, Beijing 100084, Peoples R China; 3.Tsinghua Univ, Sch Vehicle & Mobil, Beijing 100084, Peoples R China; 4.Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing 100190, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 6.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China; 7.Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Beijing 100094, Peoples R China; 8.Tsinghua Univ, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China
Recommended Citation GB/T 7714	Wen, Yuzhe,Li, Longfei,Li, Xingxian,et al. Extinction of microgravity partially premixed flame aboard the Chinese Space Station[J]. PROCEEDINGS OF THE COMBUSTION INSTITUTE,2024,40,1-4,:7.Rp_Au:Liu, Yu Cheng
APA	Wen, Yuzhe.,Li, Longfei.,Li, Xingxian.,Luo, Lei.,Chen, Tao.,...&Liu, Yu Cheng.(2024).Extinction of microgravity partially premixed flame aboard the Chinese Space Station.PROCEEDINGS OF THE COMBUSTION INSTITUTE,40(1-4),7.
MLA	Wen, Yuzhe,et al."Extinction of microgravity partially premixed flame aboard the Chinese Space Station".PROCEEDINGS OF THE COMBUSTION INSTITUTE 40.1-4(2024):7.

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