Investigation of gas-solids flow in a circulating fluidized bed using 3d electrical capacitance tomography
文献类型：期刊论文
| 作者 | Mao, Mingxu1,2; Ye, Jiamin1; Wang, Haigang1; Yang, Wuqiang3 |
| 刊名 | Measurement science and technology
 |
| 出版日期 | 2016-09-01 |
| 卷号 | 27期号:9页码:9 |
| 关键词 | Circulating fluidized bed Electrical capacitance tomography Solids concentration Bubble characteristic |
| ISSN号 | 0957-0233 |
| DOI | 10.1088/0957-0233/27/9/095401 |
| 通讯作者 | Ye, jiamin(yejiamin@iet.cn) |
| 英文摘要 | The hydrodynamics of gas-solids flow in the bottom of a circulating fluidized bed (cfb) are complicated. three-dimensional (3d) electrical capacitance tomography (ect) has been used to investigate the hydrodynamics in risers of different shapes. four different ect sensors with 12 electrodes each are designed according to the dimension of risers, including two circular ect sensors, a square ect sensor and a rectangular ect sensor. the electrodes are evenly arranged in three planes to obtain capacitance in different heights and to reconstruct the 3d images by linear back projection (lbp) algorithm. experiments were carried out on the four risers using sands as the solids material. the capacitance and differential pressure are measured under the gas superficial velocity from 0.6 m s(-1) to 3.0 m s(-1) with a step of 0.2 m s(-1). the flow regime is investigated according to the solids concentration and differential pressure. the dynamic property of bubbling flows is analyzed theoretically and the performance of the 3d ect sensors is evaluated. the experimental results show that 3d ect can be used in the cfb with different risers to predict the hydrodynamics of gas-solids bubbling flows. |
| WOS关键词 | VELOCITY-MEASUREMENT ; REGIME TRANSITION ; BEHAVIOR ; RISER |
| WOS研究方向 | Engineering ; Instruments & Instrumentation |
| WOS类目 | Engineering, Multidisciplinary ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000384023200030 |
| 出版者 | IOP PUBLISHING LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375794 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Ye, Jiamin |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Manchester, Sch Elect & Elect Engn, Manchester M13 9PL, Lancs, England |
| 推荐引用方式 GB/T 7714 | Mao, Mingxu,Ye, Jiamin,Wang, Haigang,et al. Investigation of gas-solids flow in a circulating fluidized bed using 3d electrical capacitance tomography[J]. Measurement science and technology,2016,27(9):9. |
| APA | Mao, Mingxu,Ye, Jiamin,Wang, Haigang,&Yang, Wuqiang.(2016).Investigation of gas-solids flow in a circulating fluidized bed using 3d electrical capacitance tomography.Measurement science and technology,27(9),9. |
| MLA | Mao, Mingxu,et al."Investigation of gas-solids flow in a circulating fluidized bed using 3d electrical capacitance tomography".Measurement science and technology 27.9(2016):9. |
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来源：中国科学院大学
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