Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction | |
Ren, Shoujun1,2,3,4; Yang, Haolin1,3,4 ; Jiang, Liqiao1,3,4; Zhao, Daiqing1,2,3,4; Wang, Xiaohan1,3,4
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| 2020-11-15 | |
| Source Publication | ENERGY
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| ISSN | 0360-5442 |
| Volume | 211Pages:12 |
| Corresponding Author | Ren, Shoujun(rensj@ms.giec.ac.cn) |
| Abstract | A novel vortex-tube combustor with axial fuel injection for NOx reduction was proposed to overcome the instability of ultra-lean combustion. The stability limit, flame configuration, NOx and CO emissions, and flame structure were investigated experimentally under various global equivalence ratios and fuel flow rates. The mechanisms of NOx emission reduction were analyzed by numerical simulation. Results show that the limit of global equivalence ratio can be as low as 0.01 and the amplitude of pressure fluctuation is always less than 1300 Pa, indicating fairly good performance in combustion stabilization of the combustor. In the operation range, there is a trade-off region with low NOx and CO simultaneously. The diffusion-like flame structure in this combustor can enhance the local equivalence ratio, whilst the flow field structure can also promote the transport of chemical enthalpy to the flame front, thus facilitating the stabilization. The enhanced stabilization enables the ultra-lean combustion and the ensued small area of the high-temperature zone to conduct, as well as the low NOx formation through reducing thermal NO. The local fuel-rich region and the flow field structure can promote the NOx to be reduced further via the Fenimore mechanism. (C) 2020 Elsevier Ltd. All rights reserved. |
| Keyword | Vortex-tube combustor Axial fuel injection Diffusion-like flame NOx emissions Stability limit |
| DOI | 10.1016/j.energy.2020.118659 |
| WOS Keyword | FLAME PROPAGATION ; FLOW ; MECHANISMS ; EMISSIONS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Plan of China[2016YFE0127500] |
| WOS Research Area | Thermodynamics ; Energy & Fuels |
| Funding Organization | National Key Research and Development Plan of China |
| WOS Subject | Thermodynamics ; Energy & Fuels |
| WOS ID | WOS:000591603900003 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/34899 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Ren, Shoujun |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Jiangsu Prov Key Lab Aerosp Power Syst, Nanjing 210016, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Ren, Shoujun,Yang, Haolin,Jiang, Liqiao,et al. One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction[J]. ENERGY,2020,211:12. |
| APA | Ren, Shoujun,Yang, Haolin,Jiang, Liqiao,Zhao, Daiqing,&Wang, Xiaohan.(2020).One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction.ENERGY,211,12. |
| MLA | Ren, Shoujun,et al."One axial fuel injected vortex-tube combustor with high capacity of combustion stabilization for NOx reduction".ENERGY 211(2020):12. |
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