Modelling and experimental investigation of the full-loop gas-solid flow in a circulating fluidized bed with six cyclone separators
文献类型：期刊论文
| 作者 | Jiang, Yu1,2; Qiu, Guizhi1,2; Wang, Haigang1 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2014-04-19 |
| 卷号 | 109页码:85-97 |
| 关键词 | Circulating fluidized bed CPFD Cyclone Separator Full-loop Process tomography |
| 英文摘要 | In the literature, there are few reports on the full-loop gas-solid flow in a circulating fluidized bed (CFB) with large scale and complex cyclone arrangement. In this paper, a new approach based on computational particle fluid dynamic (CPFD) method combined with electrical capacitance tomography (ECU) is used to investigate the hydrodynamic behavior of gas-solid flow in a CFB with six cyclone separators in order to improve the design and performance of a large scale CFB boiler. The full-loop CFB system for the simulation includes the CFB riser, cyclone, standpipe and U-loop. Two types of cyclone arrangement, i.e, axis and point based symmetric arrangement, are used for the CPFD simulation and ECT measurements. To validate the CPFD simulation, ECU is applied to measure the solids concentration in the standpipe with eight electrodes mounted on the outside of the standpipe. Key parameters including pressure, solids recirculation flux and velocity profile along different positions based on the CPFD simulation are analyzed and compared with experimental results. The CND simulation shows that the gas-solid flow is non-uniform among the six parallel cyclones. The solids concentration of four c-yclones at the corner of the riser is higher than that of the others. The location of cyclone as well as the inlet angle of the c-yclone needs to be optimized. The study shows that the presented approach based on CPFD simulation and [CT measurements can be used to optimize the arrangement of cyclone separators in a supercritical pressure circulating fluidized bed system. (c) 2014 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | ELECTRICAL CAPACITANCE TOMOGRAPHY ; IMAGE-RECONSTRUCTION ALGORITHMS ; CFD-SIMULATION ; SYSTEM ; PERFORMANCE ; ECT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000332771400009 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106033]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Yu,Qiu, Guizhi,Wang, Haigang. Modelling and experimental investigation of the full-loop gas-solid flow in a circulating fluidized bed with six cyclone separators[J]. CHEMICAL ENGINEERING SCIENCE,2014,109:85-97. |
| APA | Jiang, Yu,Qiu, Guizhi,&Wang, Haigang.(2014).Modelling and experimental investigation of the full-loop gas-solid flow in a circulating fluidized bed with six cyclone separators.CHEMICAL ENGINEERING SCIENCE,109,85-97. |
| MLA | Jiang, Yu,et al."Modelling and experimental investigation of the full-loop gas-solid flow in a circulating fluidized bed with six cyclone separators".CHEMICAL ENGINEERING SCIENCE 109(2014):85-97. |
入库方式： OAI收割
来源：工程热物理研究所
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