Hydrogen-enriched methane combustion in a swirl vortex-tube combustor
文献类型：期刊论文
| 作者 | Ren, Shoujun1,2; Jones, William P.1; Wang, Xiaohan2 |
| 刊名 | FUEL
 |
| 出版日期 | 2023-02-15 |
| 卷号 | 334页码:12 |
| 关键词 | Hydrogen-enrichment combustion Vortex-tube combustion Flame structure Laminarization Dynamic-stability |
| ISSN号 | 0016-2361 |
| DOI | 10.1016/j.fuel.2022.126582 |
| 通讯作者 | Ren, Shoujun(rensj@ms.giec.ac.cn) |
| 英文摘要 | The hydrogen-enrichment combustion performance was investigated numerically by employing methane mixed with different volume proportions of hydrogen, wherein a vortex-tube combustor was employed to achieve a steady combustion process. Results show that this combustion technique indicates good adaptability to hydrogen-enrichment combustion together with an ultra-steady combustion process. The lean stability limit is always within 0.15, which decreases further with the increase of hydrogen content, whilst the amplitude of pressure fluctuation op is always within 500 Pa with a uniform flame front. The generated non-premixed property flame structure can guarantee a high concentration of components in the reaction zone, which im-proves the local concentration of species and yields a large stability limit. The strong vortex flow can decrease the local flow velocity to inhibit flame blow-out and yield a large tangential velocity component. The high com-bustion intensity generates a large density gradient. The large density gradient and large tangential velocity promote the laminarization of the flow, resulting in a large Richardson number Ri* that is always much greater than 1.0. The laminarization of the flow field provides good aero-dynamic and thermo-dynamic stability. Further, the thermo-acoustic coupling is ultra-weak as well, and therein the Ra(x) is always smaller than 0.0024, indicating good flame-dynamic stability. In summary, the resultant good aero-dynamic, thermo-dynamic, and flame-dynamic stabilities of this vortex-tube combustor are the principal reasons for the super-steady hydrogen -enrichment combustion. |
| WOS关键词 | LARGE-EDDY SIMULATION ; PROBABILITY DENSITY-FUNCTION ; FLAME ; IGNITION ; SCALAR |
| 资助项目 | postdoctoral program of the International Training Program for Outstanding Young Scientific Research Talents of Guangdong Province of China ; Engineering and Physical Sciences Research Council (EPSRC) through the UK Consortium on Turbulent Reacting Flow (UKCTRF)[EP/K025163/1] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001016424000001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | postdoctoral program of the International Training Program for Outstanding Young Scientific Research Talents of Guangdong Province of China ; Engineering and Physical Sciences Research Council (EPSRC) through the UK Consortium on Turbulent Reacting Flow (UKCTRF) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39484]  |
| 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.Imperial Coll London, Dept Mech Engn, Exhibit Rd, London SW7 2AZ, England 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Shoujun,Jones, William P.,Wang, Xiaohan. Hydrogen-enriched methane combustion in a swirl vortex-tube combustor[J]. FUEL,2023,334:12. |
| APA | Ren, Shoujun,Jones, William P.,&Wang, Xiaohan.(2023).Hydrogen-enriched methane combustion in a swirl vortex-tube combustor.FUEL,334,12. |
| MLA | Ren, Shoujun,et al."Hydrogen-enriched methane combustion in a swirl vortex-tube combustor".FUEL 334(2023):12. |
入库方式： OAI收割
来源：广州能源研究所
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