Combustion characteristics of pre-vaporized n-heptane jet flames in hot O2/ N2/CO2 and O2/N2/H2O coflows
文献类型：期刊论文
| 作者 | Li, Xing1,2,3,4; Wang, Junxiong1,2,3; Li, Jun1,2,3; Wang, Xiaohan1,2,3 |
| 刊名 | FUEL
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 381页码:10 |
| 关键词 | Jet flames CO 2 dilution H 2 O dilution Liftoff height Blowout velocity n-heptane |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2024.133533 |
| 通讯作者 | Li, Xing(lixing@ms.giec.ac.cn) ; Li, Jun(lijun@ms.giec.ac.cn) |
| 英文摘要 | The liftoff height and blowout velocity of pre-vaporized n-heptane jet flame in hot coflows containing 21%O2/ 75%N2/4%CO2, 21%O2/75%N2/4%H2O, 21%O2/70%N2/9%CO2 and 21%O2/70%N2/9%H2O have been experimentally studied to compare the effects of CO2 and H2O on the combustion characteristics of liquid fuel. The combustion characteristics of pre-vaporized n-heptane jet flame in hot air coflow were also studied for comparison. The experimental results show that the liftoff height of the jet flame is increased by CO2 and H2O dilutions, and the increase of the liftoff height by the CO2 dilution is more significant. Theoretical analysis indicates that the liftoff behavior of the jet flame in different coflows can be well captured by the large-scale model. The physical and chemical effects of CO2 and H2O dilutions on the liftoff height have been compared theoretically based on the large-scale model and computation results. The measured blowout limit of pre-vaporized nheptane jet flame in different coflows show that the stability of the flame is decreased by CO2 and H2O dilutions. Moreover, the effect of CO2 dilution on the blowout limit is more significant than that of H2O dilution. A modified formula based the large-scale model was developed to interpret the blowout velocities in different coflows. |
| WOS关键词 | TURBULENT LIFTED FLAMES ; BLOW-OUT STABILITY ; DIFFUSION FLAMES ; IGNITION DELAY ; CARBON-DIOXIDE ; BIOMASS ; FUEL |
| 资助项目 | National Natural Science Foundation of China[52176139] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001348589900001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/43402]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xing; Li, Jun |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Hunan Inst Humanities Sci & Technol, Dept Energy & Mech Engn, Loudi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xing,Wang, Junxiong,Li, Jun,et al. Combustion characteristics of pre-vaporized n-heptane jet flames in hot O2/ N2/CO2 and O2/N2/H2O coflows[J]. FUEL,2025,381:10. |
| APA | Li, Xing,Wang, Junxiong,Li, Jun,&Wang, Xiaohan.(2025).Combustion characteristics of pre-vaporized n-heptane jet flames in hot O2/ N2/CO2 and O2/N2/H2O coflows.FUEL,381,10. |
| MLA | Li, Xing,et al."Combustion characteristics of pre-vaporized n-heptane jet flames in hot O2/ N2/CO2 and O2/N2/H2O coflows".FUEL 381(2025):10. |
入库方式： OAI收割
来源：广州能源研究所
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