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

文献类型：期刊论文

作者Zhang DW(张大尉); Yu DH(于德海); Yuan YM(袁越明); Zhang, Peng1; Fan XJ(范学军)
刊名FUEL
出版日期2023-06-15
卷号342页码:127788
ISSN号0016-2361
关键词Hypergolic Ignition Droplet collision Droplet swelling Monoethanolamine Hydrogen peroxide
DOI10.1016/j.fuel.2023.127788
英文摘要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.
分类号一类
WOS研究方向Energy & Fuels ; Engineering, Chemical
语种英语
WOS记录号WOS:000939577400001
资助机构National Natural Science Foundation of China [52006001, 52176134] ; Research Grants Council of the Hong Kong Special Administrative Re gion, China [CityU 15222421, CityU 15218820]
其他责任者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.
源URL[http://dspace.imech.ac.cn/handle/311007/91803]  
专题力学研究所_高温气体动力学国家重点实验室
作者单位1.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China
2.City Univ Hong Kong, Dept Mech Engn, Kowloon Tong, Hong Kong, Peoples R China
3.Changzhou Univ, Sch Mech Engn & Rail Transit, Changzhou 213164, 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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来源：力学研究所

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