Evaporation and Combustion Characteristics of Kerosene Droplets in Localized Stratified Vortex-tube Combustor: A Numerical Investigation
文献类型：期刊论文
| 作者 | Ren, Shoujun1,2,3,4; Wang, Xiaohan1,2,4 ; Jiang, Liqiao1,2,4
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| 刊名 | COMBUSTION SCIENCE AND TECHNOLOGY
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| 出版日期 | 2020-10-10 |
| 页码 | 16 |
| 关键词 | Vortex-tube combustor AC(10)H(20)droplet evaporation ratio flame structure combustion characteristic |
| ISSN号 | 0010-2202 |
| DOI | 10.1080/00102202.2020.1828880 |
| 通讯作者 | Ren, Shoujun(rensj@ms.giec.ac.cn) |
| 英文摘要 | The combustion of AC(10)H(20)droplets was investigated to explore the combustion performance of liquid fuels in localized stratified vortex-tube combustor (LSVC). The evaporation ratio, flame structure, stability limit, heat loss, and combustion efficiency in the LSVC were investigated under various equivalence ratios and fuel mass fluxes numerically. Results corroborate that the LSVC exhibits a large heat release with uniform flame front, large stability limit, low heat loss, high evaporation rate, and good combustion efficiency under lean operating conditions, indicating good potential to deal with liquid fuels directly. Then, the evaporation and stabilization mechanisms are analyzed. As for the former, the evaporation ratio in LSVC increases sharply along the axial direction toward the outlet, indicating a high evaporation rate, which is optimized through the heat produced by itself efficiently. Viz., the vortex currents can entrain the AC(10)H(20)droplets to interior high-temperature region and then promote the evaporation of liquid fuels. As for the latter, the localized stratified distribution of species in the LSVC results in an edge flame structure, which differs from that in the traditional vortex-tube combustors. The local equivalence ratio increases along the radial direction toward the center. The increased local equivalence ratio of the interior is crucial for stabilization and the decreased local equivalence ratio of exterior enables the heat loss to be reduced. In the end, the edge flame structure and the low heat loss yields a large heat release in the LSVC, which can increase the flame speed, thereby ensuring the stabilization and the high burn-off rate. |
| WOS关键词 | FLAME ; SPRAY |
| 资助项目 | National Key Research and Development Plan 'Intergovernmental International Scientific and Technological Innovation Cooperation' Key Specific Project[2016YFE0127500] |
| WOS研究方向 | Thermodynamics ; Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000576019600001 |
| 出版者 | TAYLOR & FRANCIS INC |
| 资助机构 | National Key Research and Development Plan 'Intergovernmental International Scientific and Technological Innovation Cooperation' Key Specific Project |
| 源URL | [http://ir.giec.ac.cn/handle/344007/32174]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Ren, Shoujun |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Jiangsu Prov Key Lab Aerosp Power Syst, Nanjing, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Shoujun,Wang, Xiaohan,Jiang, Liqiao. Evaporation and Combustion Characteristics of Kerosene Droplets in Localized Stratified Vortex-tube Combustor: A Numerical Investigation[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2020:16. |
| APA | Ren, Shoujun,Wang, Xiaohan,&Jiang, Liqiao.(2020).Evaporation and Combustion Characteristics of Kerosene Droplets in Localized Stratified Vortex-tube Combustor: A Numerical Investigation.COMBUSTION SCIENCE AND TECHNOLOGY,16. |
| MLA | Ren, Shoujun,et al."Evaporation and Combustion Characteristics of Kerosene Droplets in Localized Stratified Vortex-tube Combustor: A Numerical Investigation".COMBUSTION SCIENCE AND TECHNOLOGY (2020):16. |
入库方式： OAI收割
来源：广州能源研究所
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