Study on stretch extinction characteristics of methane/carbon dioxide versus oxygen/carbon dioxide counterflow non-premixed combustion under elevated pressures
文献类型：期刊论文
| 作者 | Zhang, Xiaochun1; Zhang, Zijian1; Li, Xing2,3,4; Chen, Yufang1,2,3,4; Wang, Xiaohan2,3,4
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| 刊名 | JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 92页码:11 |
| 关键词 | Methane utilization Counterflow combustion Elevated pressure Carbon dioxide diluted Oxygen-enriched flame Stretch extinction limit |
| ISSN号 | 1875-5100 |
| DOI | 10.1016/j.jngse.2021.103994 |
| 通讯作者 | Li, Xing(lixing@ms.giec.ac.cn) |
| 英文摘要 | As a clean gaseous fuel, methane (the main constituent of natural gas) has been widely used in the lives of residents and industrial processes. The oxy-fuel combustion technology for methane/carbon dioxide is an effective way to reduce the pollutant emissions of NOx, which is also beneficial to the capture of carbon dioxide. Herein, the stretch extinction characteristics of non-premixed flames induced by methane/carbon dioxide mixtures versus oxygen/carbon dioxide mixtures counterflow combustion with various fuel concentrations were studied in high-pressure environments. The computed flame extinction strain rates of oxygen-enriched and air combustions in low fuel concentration range at pressures of 0.1, 0.5 and 0.7 MPa have a good consistency with the experiment results obtained from previous literature. The results show that the increase of flame extinction limit represented by the stretch rate for the oxygen-enriched combustion with increasing pressure is more significant than that for the air combustion. The analyses of reaction pathways, integral of reaction rates and sensitivity coefficients suggest that the OH formation rates of near extinction flames limits can be used to estimate the ratio of the flame extinction strain rate for oxygen-enriched combustion to that for air combustion under high pressures. The reasons for the enhancement of the OH formation rate aroused by increasing pressures were clarified. |
| WOS关键词 | OXY-FUEL COMBUSTION ; FLAME EXTINCTION ; DIFFUSION FLAMES ; BURNING VELOCITY ; COAL COMBUSTION ; CARBON-DIOXIDE ; CO2 ; MIXTURES ; AIR ; TEMPERATURE |
| 资助项目 | National Natural Science Foundation of China[51506204] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000659183800002 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/33313]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xing |
| 作者单位 | 1.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiaochun,Zhang, Zijian,Li, Xing,et al. Study on stretch extinction characteristics of methane/carbon dioxide versus oxygen/carbon dioxide counterflow non-premixed combustion under elevated pressures[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2021,92:11. |
| APA | Zhang, Xiaochun,Zhang, Zijian,Li, Xing,Chen, Yufang,&Wang, Xiaohan.(2021).Study on stretch extinction characteristics of methane/carbon dioxide versus oxygen/carbon dioxide counterflow non-premixed combustion under elevated pressures.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,92,11. |
| MLA | Zhang, Xiaochun,et al."Study on stretch extinction characteristics of methane/carbon dioxide versus oxygen/carbon dioxide counterflow non-premixed combustion under elevated pressures".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 92(2021):11. |
入库方式： OAI收割
来源：广州能源研究所
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