Hypergolic ignition induced by head on collision of bi propellant droplets: Monoethanolamine based fuel and hydrogen peroxide

doi:10.1016/j.fuel.2023.127788

	Hypergolic ignition induced by head on collision of bi propellant droplets: Monoethanolamine based fuel and hydrogen peroxide
	Zhang DW(张大尉); Yu DH(于德海); Yuan YM(袁越明); Zhang, Peng 2; Fan XJ(范学军)
发表期刊	FUEL
	2023-06-15
卷号	342 页码:127788
ISSN	0016-2361
摘要	Hypergolic ignition by the binary collision of H2O2 and Monoethanolamine (MEA) NaBH4 droplets has been experimentally studied with an emphasis on droplet inter mixing, heat transfer, droplet swelling, and flame propagation. The entire ignition is phenomenally categorized into five stages. The H2O2 droplet penetrates the MEA NaBH4 droplet after the collision and coalesces with it. The H2O2 fluid rapidly restores its sphericity inside the coalesced droplet, which is theoretically proved to be driven by interfacial tension. The average measured restoration time is 14.0 ms. Large scaled bubbles are generated at the interfacial structure, leading to swelling of the coalesced droplet. The existence of apparent interface tension tends to limit the rate of droplet inflation at the beginning. As more bubbles are produced, the interface tension wanes, and the droplet swells rapidly. The droplet surface expansion rate is identified via the gray level information in recorded images. A theoretical model quantifying the swelling rate was established based on the underlying mechanism for the swelling of the reacting droplet, which can be attributed to the flash boiling of the superheated H2O2 fluid. As bubbles accu mulate inside the coalesced droplet, a dual bell shaped droplet configuration is formed. A flame ring structure is observed when the ignition occurs. Luminant flame sustains more than 10 ms until the fuel vapor is depleted.
关键词	Hypergolic Ignition Droplet collision Droplet swelling Monoethanolamine Hydrogen peroxide
DOI	10.1016/j.fuel.2023.127788
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000939577400001
WOS研究方向	Energy & Fuels ; Engineering, Chemical
WOS类目	Energy & Fuels ; Engineering
项目资助者	National Natural Science Foundation of China [52006001, 52176134] ; Research Grants Council of the Hong Kong Special Administrative Re gion, China [CityU 15222421, CityU 15218820]
论文分区	一类
力学所作者排名	1
RpAuthor	Zhang, DW (corresponding author), Changzhou Univ, Sch Mech Engn & Rail Transit, Changzhou 213164, Peoples R China. ; Yu, DH (corresponding author), Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China.
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/91803
专题	高温气体动力学国家重点实验室
作者单位	1.Changzhou Univ, Sch Mech Engn & Rail Transit, Changzhou 213164, Peoples R China 2.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China 3.City Univ Hong Kong, Dept Mech Engn, Kowloon Tong, Hong Kong, Peoples R China 4.Peking Univ, Coll Engn, Dept Mech & Engn Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang DW,Yu DH,Yuan YM,et al. Hypergolic ignition induced by head on collision of bi propellant droplets: Monoethanolamine based fuel and hydrogen peroxide[J]. FUEL,2023,342:127788.
APA	张大尉,于德海,袁越明,Zhang, Peng,&范学军.(2023).Hypergolic ignition induced by head on collision of bi propellant droplets: Monoethanolamine based fuel and hydrogen peroxide.FUEL,342,127788.
MLA	张大尉,et al."Hypergolic ignition induced by head on collision of bi propellant droplets: Monoethanolamine based fuel and hydrogen peroxide".FUEL 342(2023):127788.

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