Multi-scale mass transfer model for gas-solid two-phase flow
文献类型：期刊论文
| 作者 | Wang, LN; Yang, N; Li, JH |
| 刊名 | CHEMICAL ENGINEERING COMMUNICATIONS
 |
| 出版日期 | 2005-10-01 |
| 卷号 | 192期号:10-12页码:1636-1654 |
| 关键词 | multi-scale mass transfer circulating fluidized bed gas-solid flow |
| ISSN号 | 0098-6445 |
| 其他题名 | Chem. Eng. Commun. |
| 中文摘要 | This article is devoted to analyzing the mass transfer in heterogeneous gas-solid flow by means of structure and process decomposition. A multi-scale mass transfer model was developed on the basis of the hydrodynamics calculated from the so-called EMMS model. This resulted in the predictions of the steady-state two-dimensional concentration distributions of sublimated substance as well as total mass transfer coefficient for circular concurrent gas-solid contactors. The predictions were validated by experimentally measured (via an on-line HP GC-MS system) axial concentration distributions of sublimated naphthalene in air in a circulating fluidized bed riser 3.0 m in height and 72 mm in diameter. The experiment also obtained mass transfer coefficients comparable to theoretical predictions under conditions with various gas velocities, solid circulation rates, particle sizes, and active material fractions in the particles. Both the theoretical and experimental results demonstrated that the heterogeneous flow structure prevailing in the concurrent gas-solid flow greatly influenced the flow's mass transfer. |
| 英文摘要 | This article is devoted to analyzing the mass transfer in heterogeneous gas-solid flow by means of structure and process decomposition. A multi-scale mass transfer model was developed on the basis of the hydrodynamics calculated from the so-called EMMS model. This resulted in the predictions of the steady-state two-dimensional concentration distributions of sublimated substance as well as total mass transfer coefficient for circular concurrent gas-solid contactors. The predictions were validated by experimentally measured (via an on-line HP GC-MS system) axial concentration distributions of sublimated naphthalene in air in a circulating fluidized bed riser 3.0 m in height and 72 mm in diameter. The experiment also obtained mass transfer coefficients comparable to theoretical predictions under conditions with various gas velocities, solid circulation rates, particle sizes, and active material fractions in the particles. Both the theoretical and experimental results demonstrated that the heterogeneous flow structure prevailing in the concurrent gas-solid flow greatly influenced the flow's mass transfer. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | CIRCULATING FLUIDIZED-BED ; TRANSPORT PHENOMENA ; PARTICLE-SYSTEMS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000232106000026 |
| 公开日期 | 2013-10-25 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4203]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, LN,Yang, N,Li, JH. Multi-scale mass transfer model for gas-solid two-phase flow[J]. CHEMICAL ENGINEERING COMMUNICATIONS,2005,192(10-12):1636-1654. |
| APA | Wang, LN,Yang, N,&Li, JH.(2005).Multi-scale mass transfer model for gas-solid two-phase flow.CHEMICAL ENGINEERING COMMUNICATIONS,192(10-12),1636-1654. |
| MLA | Wang, LN,et al."Multi-scale mass transfer model for gas-solid two-phase flow".CHEMICAL ENGINEERING COMMUNICATIONS 192.10-12(2005):1636-1654. |
入库方式： OAI收割
来源：过程工程研究所
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。