An experimental study of the characteristics of blended hydrogen-methane non-premixed jet flames
文献类型：期刊论文
| 作者 | Zhao, Chunxiang1; Li, Xing2,3; Wang, Xiaohan2; Li, Min1; Xiao, Huahua1,3 |
| 刊名 | PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 174页码:838-847 |
| 关键词 | Hydrogen safety Jet flame Flame height Flame width Lift-off height |
| ISSN号 | 0957-5820 |
| DOI | 10.1016/j.psep.2023.04.041 |
| 通讯作者 | Li, Min(lim2010@ustc.edu.cn) ; Xiao, Huahua(xiaoh@ustc.edu.cn) |
| 英文摘要 | The addition of hydrogen to natural gas promotes the reactivity of fuel and thus increases the jet fire risk from pipeline leakage during the transport process of blended hydrogen-natural gas. Aiming to evaluating the po-tential jet fire risk, this paper experimentally studied the characteristics of H-2/CH4 jet flames at varied heat release rates (HRRs) with H-2 volume fraction (fv) ranging from 0% to 90% by two circular nozzles (diameters: 3 and 5 mm). The results show that with the increase of H-2 volume fraction, two competing effects on flame height were observed, that is, the increase in mixture molecular diffusivity, radicals pool, and air entrainment decreases the flame height, while the increase in flame temperature and jet velocity of fuel flow with a small flow Reynold number increases the flame height. Comparisons of different previous correlations of flame height with current experiments were conducted to obtain the applicable flame height model for H-2/CH4 flames. The ratio of flame width to flame height for two nozzle diameters increases with dimensionless HRR when HRR is small, and then becomes nearly constant (similar to 0.145). The flame width normalized by nozzle diameter has a power dependence on dimensionless HRR, i.e., 0.48 and 0.59 power for the 3 and 5 mm nozzle, respectively. Further theoretical analysis suggested the dimensionless correlations of lift-off height of H-2/CH4 flames with fv <= 50%. |
| WOS关键词 | NATURAL-GAS ; DIFFUSION FLAMES ; RADICAL CONCENTRATIONS ; LIFTED FLAMES ; PREDICTION ; MIXTURES ; LIFTOFF ; LENGTH ; AIR |
| 资助项目 | DNL Cooperation Fund, CAS[DNL202006] ; National Natural Science Foundation of China[51976210] ; National Natural Science Foundation of China[52020105008] ; University Synergy Inno- vation Program of Anhui Province[GXXT-2020-079] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001002865500001 |
| 出版者 | ELSEVIER |
| 资助机构 | DNL Cooperation Fund, CAS ; National Natural Science Foundation of China ; University Synergy Inno- vation Program of Anhui Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39422]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Min; Xiao, Huahua |
| 作者单位 | 1.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Chunxiang,Li, Xing,Wang, Xiaohan,et al. An experimental study of the characteristics of blended hydrogen-methane non-premixed jet flames[J]. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,2023,174:838-847. |
| APA | Zhao, Chunxiang,Li, Xing,Wang, Xiaohan,Li, Min,&Xiao, Huahua.(2023).An experimental study of the characteristics of blended hydrogen-methane non-premixed jet flames.PROCESS SAFETY AND ENVIRONMENTAL PROTECTION,174,838-847. |
| MLA | Zhao, Chunxiang,et al."An experimental study of the characteristics of blended hydrogen-methane non-premixed jet flames".PROCESS SAFETY AND ENVIRONMENTAL PROTECTION 174(2023):838-847. |
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。