Influence of Central Air on Flow and Combustion Characteristics and Low-Load Stabilization Performance of a Babcock Burner
文献类型：期刊论文
| 作者 | Huang, Chunchao1; Li, Zhengqi1; Wang, Yufei1; Lu, Yue1; Liu, Huacai2; Chen, Zhichao1 |
| 刊名 | PROCESSES
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 11期号:7页码:22 |
| 关键词 | swirl burner central air flow characteristics low-load stable combustion |
| DOI | 10.3390/pr11071916 |
| 通讯作者 | Li, Zhengqi(green@hit.edu.cn) |
| 英文摘要 | On a cold single-phase test stand, the effect of central air on the exit flow field of Babcock, Germany, burner was investigated. Industrial measurements were taken for a 700 MW wall-fired pulverized-coal utility boiler with above burners. Gas temperature, gas composition and concentration in the burner area were measured at 444 MW, 522 MW and 645 MW loads, respectively. Only when the central air mass flow was zero did a center reflux zone exist in the burner outlet area. The steady combustion of faulty coal was aided by early mixing of primary and secondary air, which was made possible by the decreased central air mass flow. At all different loads, the pulverized coal in center region took a long distance to ignite. The temperature in center steadily dropped as central air mass flow decreased, while the temperature in secondary air region gradually rose. Within 1.5 m from the primary air duct outlet, the highest CO concentration was 25 ppm and the highest O-2 concentration was close to 21% under all loads. The gas concentration near sidewall was more influenced by load. With all valves opening of burner center air at 30%, the boiler was able to operate safely and stably without oil at a load of 262 MW. The furnace chamber temperature in burner area reached 1056.1 & DEG;C. |
| WOS关键词 | SECONDARY AIR ; NOX ; TEMPERATURE ; POLLUTION |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001036590900001 |
| 出版者 | MDPI |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39233]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Zhengqi |
| 作者单位 | 1.Harbin Inst Technol, Sch Energy Sci & Engn, 92 West Dazhi St, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Chunchao,Li, Zhengqi,Wang, Yufei,et al. Influence of Central Air on Flow and Combustion Characteristics and Low-Load Stabilization Performance of a Babcock Burner[J]. PROCESSES,2023,11(7):22. |
| APA | Huang, Chunchao,Li, Zhengqi,Wang, Yufei,Lu, Yue,Liu, Huacai,&Chen, Zhichao.(2023).Influence of Central Air on Flow and Combustion Characteristics and Low-Load Stabilization Performance of a Babcock Burner.PROCESSES,11(7),22. |
| MLA | Huang, Chunchao,et al."Influence of Central Air on Flow and Combustion Characteristics and Low-Load Stabilization Performance of a Babcock Burner".PROCESSES 11.7(2023):22. |
入库方式： OAI收割
来源：广州能源研究所
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