Experimental and Numerical Study on Scale Effects of Gas Emission from Coal Particles
文献类型：期刊论文
| 作者 | Hu, Shaobin1; Li, Xiaochun1 ; Wang, Enyuan2
|
| 刊名 | TRANSPORT IN POROUS MEDIA
 |
| 出版日期 | 2016 |
| 卷号 | 114期号:1页码:133-147 |
| 关键词 | Coal particles Gas emission Scale effects Formation mechanism Numeric model |
| ISSN号 | 0169-3913 |
| DOI | 10.1007/s11242-016-0730-y |
| 英文摘要 | In order to study the scale effects and formation mechanism of gas emission from coal particles, we conducted gas desorption and diffusion experiments, investigated the variation of particle size and its effect on gas flow, analyzed and discussed the control mechanism and gas diffusion model of coal. Based on the above, we found that the bidisperse diffusion model was suitable to study the size effects of gas emission and further established a simplified numerical method of bidisperse diffusion model and compared it with the experiment results. The results showed that the accumulated gas emission volume and the initial gas emission speed have scale characteristics. The scale effects of gas emission from coal are determined by the multi-scale pore structure of coal. The diffusion coefficient and path of coal particle determined the gas flow process. Through the gas desorption and diffusion experiments, we can find a way to determine the critical diffusion parameters. On the basis of experiments and theoretical analyses performed, the processes of gas emission from coal particles are studied and their mathematical models are put forward. These models can describe the experimental phenomena fairly. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000382094700007 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3902]  |
| 专题 | 岩土力学所知识全产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech ; 2.China Univ Min & Technol, Sch Safety Engn |
| 推荐引用方式 GB/T 7714 | Hu, Shaobin,Li, Xiaochun,Wang, Enyuan. Experimental and Numerical Study on Scale Effects of Gas Emission from Coal Particles[J]. TRANSPORT IN POROUS MEDIA,2016,114(1):133-147. |
| APA | Hu, Shaobin,Li, Xiaochun,&Wang, Enyuan.(2016).Experimental and Numerical Study on Scale Effects of Gas Emission from Coal Particles.TRANSPORT IN POROUS MEDIA,114(1),133-147. |
| MLA | Hu, Shaobin,et al."Experimental and Numerical Study on Scale Effects of Gas Emission from Coal Particles".TRANSPORT IN POROUS MEDIA 114.1(2016):133-147. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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