Numerical and Experimental Study on the Deflagration Characteristics of Premixed CO in a Tube with Obstacles
文献类型：期刊论文
| 作者 | Chen QQ(陈晴晴)1,2; Li T(李腾)2 ; Wang Y(王垚)1,2; Wei XL(魏小林)1,2; Zhang L(张良)1,2
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| 刊名 | FLOW TURBULENCE AND COMBUSTION
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| 出版日期 | 2024-12-17 |
| 页码 | 23 |
| 关键词 | Converter gas CO deflagration Premixed combustion OpenFOAM Obstacle tube |
| ISSN号 | 1386-6184 |
| DOI | 10.1007/s10494-024-00627-2 |
| 通讯作者 | Zhang, Liang(zhangliang@imech.ac.cn) |
| 英文摘要 | As the main by-product of converter steelmaking process, converter gas has significant potential for energy recovery due to its high calorific value. However, there is a significant risk of explosion during the recycling process. In order to ensure the process safety of converter gas recovery and achieve efficient energy utilization, it is necessary to study the process of CO deflagration in the tube and prevent it. This article combines experiments and numerical simulations to study the effects of obstacles inside tube, water content in the air, and the length of the smooth section on CO deflagration characteristics. The results show that the propagation characteristics of flames in the smooth section are related to the flow field and have periodicity. The length of the smooth section does not significantly affect the maximum deflagration pressure. During the propagation of flames in the obstacle section, the acceleration effect of each obstacle on the flame is similar, and the deflagration becomes more and more intense as the number of obstacles increases. The peak value is reached at the last obstacle, about 0.72 MPa, and the flame speed can reach 672 m/s. The water content in the air has a significant impact on the maximum deflagration pressure of CO, as H2O triggers a series of chain branching reactions. When the water content increases to 0.39%, the maximum deflagration pressure reaches its peak. In terms of numerical simulation, the reliability of the open-source combustion solver XiFoam was verified. The combustion, transport, and thermodynamic property parameters for premixed gas of CO and humid air were provided using Cantera. Finally, in order to avoid the occurrence of deflagration during the converter gas recovery process, it is necessary to strictly control its moisture content. |
| 分类号 | 二类 |
| WOS关键词 | FLAME ACCELERATION ; METHANE-AIR ; MIXTURES |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA29020503] |
| WOS研究方向 | Thermodynamics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001379453600001 |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences |
| 其他责任者 | Zhang, Liang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97985]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Chen QQ,Li T,Wang Y,et al. Numerical and Experimental Study on the Deflagration Characteristics of Premixed CO in a Tube with Obstacles[J]. FLOW TURBULENCE AND COMBUSTION,2024:23. |
| APA | 陈晴晴,李腾,王垚,魏小林,&张良.(2024).Numerical and Experimental Study on the Deflagration Characteristics of Premixed CO in a Tube with Obstacles.FLOW TURBULENCE AND COMBUSTION,23. |
| MLA | 陈晴晴,et al."Numerical and Experimental Study on the Deflagration Characteristics of Premixed CO in a Tube with Obstacles".FLOW TURBULENCE AND COMBUSTION (2024):23. |
入库方式： OAI收割
来源：力学研究所
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