Effect of pilot hydrogen on the mixing and combustion characteristics in kerosene-fueled scramjet
文献类型：期刊论文
| 作者 | Shi, HongQing4,5; Wang, Du4; Cui NF(崔乃夫)3; Zhao, ChenYang4; Lei, JieMing4; Zhu, ZiQiang4; Zhang, YaNing5; Tian, ZhenYu1,2,4 |
| 刊名 | APPLIED THERMAL ENGINEERING
 |
| 出版日期 | 2025 |
| 卷号 | 258页码:10 |
| 关键词 | Scramjet Pilot hydrogen Dual cavities Mixing efficiency Combustion performance |
| ISSN号 | 1359-4311 |
| DOI | 10.1016/j.applthermaleng.2024.124670 |
| 通讯作者 | Tian, Zhen-Yu(tianzhenyu@iet.cn) |
| 英文摘要 | Scramjet engine has presented excellent advantages in hypersonic flight due to its excellent flight performance, such as simple structure, high specific impulse performance and a broad range of cruising speed. However, the stable combustion is extremely formidable in the case of supersonic flow. This work combined several flameholding strategies, i.e., vertical injection orifices, dual cavities, pilot flame, as well as converting kerosene as supercritical state, aiming at providing a significant reference for the supersonic stable combustion. Meanwhile, as a highly reactive fuel, the effects of hydrogen addition on the mixing and combustion characteristics were investigated in detail. In the process, the total equivalence ratio of kerosene and pilot hydrogen was held constant at 0.8, and the effect of different equivalence ratios of hydrogen (ERH = 0, 0.34 and 0.47) was investigated. The results showed that the addition of hydrogen can effectively enhance the combustion intensity in the combustor. The wall static pressure reached from 230 kPa to 259 kPa with ERH increasing from 0 to 0.47. High pilot hydrogen can make the back pressure propagate toward the entrance, improving the risk to compromise the stable inlet conditions. The shock wave disk was occurred near the entrance, leading to the drastic variation of pressure, temperature and density. The consumption of supercritical kerosene was very fast, while the combustion of hydrogen was relatively lower, even uncomplete burning of hydrogen was observed at exit. With the addition of pilot hydrogen, the heat released in the combustor became less. Specifically, as the ERH increased from 0 to 0.47, the heat released in combustor reduced from 4.1 x 104 to 3.2 x 104 MJ/s, resulting in the corresponding temperature at the exit decreaing from 1777 to 1607 K, due to the decrement of combustion efficiency resulted from the addition of hydrogen. |
| 分类号 | 一类 |
| WOS关键词 | FLAME STABILIZATION ; IGNITION CHARACTERISTICS ; SUPERSONIC COMBUSTOR ; NUMERICAL-ANALYSIS ; RP-3 KEROSENE ; CAVITY ; INJECTION ; MODE |
| 资助项目 | NSFC[52325604] ; MOST[2022YFB4003900/2021YFA0716200] ; National Science and Technology Major Project[J2019-III-0050-0048] ; CAS Project for Young Scientists in Basic Research[YSBR-028] ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences, Innovation guidance youth project[CXYJJ21-QN-001] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001344547300001 |
| 资助机构 | NSFC ; MOST ; National Science and Technology Major Project ; CAS Project for Young Scientists in Basic Research ; Innovation Academy for Light-duty Gas Turbine, Chinese Academy of Sciences, Innovation guidance youth project |
| 其他责任者 | Tian, Zhen-Yu |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97151]  |
| 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, Inst Engn Thermophys, State Key Lab Coal Convers, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China; 4.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China; 5.Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Shi, HongQing,Wang, Du,Cui NF,et al. Effect of pilot hydrogen on the mixing and combustion characteristics in kerosene-fueled scramjet[J]. APPLIED THERMAL ENGINEERING,2025,258:10. |
| APA | Shi, HongQing.,Wang, Du.,崔乃夫.,Zhao, ChenYang.,Lei, JieMing.,...&Tian, ZhenYu.(2025).Effect of pilot hydrogen on the mixing and combustion characteristics in kerosene-fueled scramjet.APPLIED THERMAL ENGINEERING,258,10. |
| MLA | Shi, HongQing,et al."Effect of pilot hydrogen on the mixing and combustion characteristics in kerosene-fueled scramjet".APPLIED THERMAL ENGINEERING 258(2025):10. |
入库方式： OAI收割
来源：力学研究所
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