Multi-fuel combustion performance analysis and operating characteristics of a vortex-tube combustor
文献类型：期刊论文
| 作者 | Ren, Shoujun1,2,3; Jones, William P.2; Wang, Xiaohan3 |
| 刊名 | ENERGY
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 264页码:14 |
| 关键词 | Fuel adaptability Flame-dynamic Generalized criterion Intensified combustion Stabilization |
| ISSN号 | 0360-5442 |
| DOI | 10.1016/j.energy.2022.126129 |
| 通讯作者 | Ren, Shoujun(rensj@ms.giec.ac.cn) |
| 英文摘要 | In this work, an ultra-steady combustion technique was attempted to achieve fuel adaptability combustion. The combustion performances of five representative gaseous fuels in a stratified vortex-tube combustor were investigated in terms of the stability limit, pressure fluctuation, and flame topology. Results show that the lean stability limit of the global equivalence ratio for the five fuels can always be less than 0.15 with a uniform flame front, whilst the amplitude of pressure fluctuations is always below 2300 Pa, indicating a super-steady com-bustion process. The non-premixed flame structure guarantees a high mass concentration near the reaction zone, whilst the vortex flow also decreases the local flow velocity, inhibiting flame blow-out, and suggesting good self-adjusting capacity under various global equivalence ratios. The synergistic action of the flow and flame struc-tures transports the interior high-enthalpy burnt gas and exterior unburnt gas to the exterior unburnt gas and reaction zones to promote the ignition and reaction procedures, resulting in an intensified combustion. The large tangential velocity and density gradient result in the large values of Richardson number, which indicates that laminarization of the flow arises and results in good aero-dynamic and thermo-dynamic stabilities. The resultant good self-adjusting capacity and three types of dynamic stabilities are the intrinsic causes of the ultra-steady combustion process in this combustor. Ultimately, the generalized criterion of stabilization can be defined by the combination of Richardson and Rayleigh numbers, for which large Richardson and small Rayleigh numbers are required for a highly steady combustion process. |
| WOS关键词 | LARGE-EDDY SIMULATION ; FLAME ; MECHANISM ; PRESSURE ; IGNITION ; FIELD |
| 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 | Thermodynamics ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000913334500002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE 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/344007/38301]  |
| 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, Guangzhou Inst Energy Convers, Imperial Coll London, Key Lab Renewable Energy, Tianhe Dist,Wushan Erergy Rd 2, Guangzhou 510640, Peoples R China 2.Imperial Coll London, Dept Mech Engn, Exhibit Rd, London SW7 2AZ, England 3.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. Multi-fuel combustion performance analysis and operating characteristics of a vortex-tube combustor[J]. ENERGY,2023,264:14. |
| APA | Ren, Shoujun,Jones, William P.,&Wang, Xiaohan.(2023).Multi-fuel combustion performance analysis and operating characteristics of a vortex-tube combustor.ENERGY,264,14. |
| MLA | Ren, Shoujun,et al."Multi-fuel combustion performance analysis and operating characteristics of a vortex-tube combustor".ENERGY 264(2023):14. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。