| Hypergolic Ignition by Off-Center Binary Collision of Monoethanolamine-NaBH4 and Hydrogen Peroxide Droplets | |
Zhang DW(张大尉); Song, Siduo; Yu DH(于德海); Yuan YM(袁越明); Liu, Hongmei; Liu, Xuedong; Fan XJ(范学军)
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| Corresponding Author | Liu, Hongmei([email protected]) |
| Source Publication | SYMMETRY-BASEL
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| 2024-06-01 | |
| Volume | 16Issue:6Pages:15 |
| Abstract | Hypergolic ignition of H2O2 and MEA-NaBH4 by off-center collision of their droplets was experimentally studied, focusing on the characteristics and mechanism of droplet mixing, droplet heating and evaporation, and gas-phase ignition. The whole collision ignition process was divided into five stages, which were compared, respectively, with that of head-on collision. Under the condition of a slightly off-center collision (for cases where B < 0.35), H2O2 droplets penetrate MEA-NaBH4 droplets after the collision and coalesce with it, but the internal H2O2 drop inside the MEA-NaBH4 droplet does not form a stable sphere. Instead, it rotates and expands inside the mixed droplet. With B increasing to 0.59, the droplets no longer coalesce after collision but separate away, forming satellite droplets. In such cases, multi-ignition mode is observed. When B increases to a certain extent, specifically, 0.85, a grazing collision is observed such that no mass transfer exists during the interaction of droplets, which leads to ignition failure. A theoretical model quantifying droplet swelling rate was established to calculate the volume change of the droplet. It was found that the swelling can be attributed to the flash boiling of superheated internal H2O2 fluid. Meanwhile, the ignition delay time was found to linearly decrease with B at various Wes until the extent where the chemical reaction takes over control, leading to an almost constant time delay defined as RDT. Additionally, the regime of ignition modes corresponding to different droplet mixing features is summarized in the We-B parametric space. |
| Keyword | droplet collision hypergolic ignition hydrogen peroxide droplet vaporization MEA |
| DOI | 10.3390/sym16060682 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001257135300001 |
| WOS Keyword | HEAD-ON COLLISION ; COALESCENCE ; SEPARATION |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| Funding Project | Changzhou University Research Start-up Fund[ZMF23020056] ; Changzhou Leading Innovative Talent Project[CQ20230103] ; Natural Science Foundation of Jiangsu Province[BK20210854] ; Jiangsu Province Engineering Research Center of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery |
| Funding Organization | Changzhou University Research Start-up Fund ; Changzhou Leading Innovative Talent Project ; Natural Science Foundation of Jiangsu Province ; Jiangsu Province Engineering Research Center of Intelligent Manufacturing Technology for the New Energy Vehicle Power Battery |
| Classification | 二类 |
| Ranking | 3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/95815 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation GB/T 7714 | Zhang DW,Song, Siduo,Yu DH,et al. Hypergolic Ignition by Off-Center Binary Collision of Monoethanolamine-NaBH4 and Hydrogen Peroxide Droplets[J]. SYMMETRY-BASEL,2024,16,6,:15. |
| APA | 张大尉.,Song, Siduo.,于德海.,袁越明.,Liu, Hongmei.,...&范学军.(2024).Hypergolic Ignition by Off-Center Binary Collision of Monoethanolamine-NaBH4 and Hydrogen Peroxide Droplets.SYMMETRY-BASEL,16(6),15. |
| MLA | 张大尉,et al."Hypergolic Ignition by Off-Center Binary Collision of Monoethanolamine-NaBH4 and Hydrogen Peroxide Droplets".SYMMETRY-BASEL 16.6(2024):15. |
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