Measurement of gas-solids flow in loop seal and external heat exchanger in a circulating fluidized bed
文献类型：期刊论文
| 作者 | Wang, Haigang1; Li, Yi2; Qiu, Guizhi1; Song, Guoliang1; Yang, Wuqiang3 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2014-11-01 |
| 卷号 | 266页码:249-261 |
| 关键词 | ECT External heat exchanger Fluidized bed Solids flow Pneumatic control |
| 英文摘要 | In a circulating fluidized bed (CFB) with an external heat exchanger (EHE) and a pneumatically controlled loop seal, it is important to measure the gas-solids flow in the loop seal and EHE, for high combustion efficiency. For this purpose, electrical capacitance tomography (ECT) has been applied. Two circular ECT sensors with eight electrodes each are mounted in the two exports of the pneumatically controlled loop seal to monitor the solids flow in the "cold" CFB system. Dynamics tests with different operating conditions were carried out. 2D and 3D images of the cross sections of the exports were reconstructed. The ECT results are analyzed with the pressure drop. The power spectral density (PSD) of signals is obtained by Welch's method and wavelet decomposition in the time domain is implemented for capacitance signals with different conditions. The experimental result indicates that the gas-solids flow can be controlled by pneumatically controlled loop seal based on ECT and pressure drop measurements. (C) 2014 Elsevier B.V. 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 ; CO2 CAPTURE ; COLD MODEL ; PRESSURE-FLUCTUATIONS ; SYSTEM ; REGIMES ; BOILER ; ECT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000341221800030 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/105997]  |
| 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 Thermophys Engn, Beijing 100190, Peoples R China 2.Univ Cambridge, Dept Chem Engn & Biotechnol, Cambridge CB3 0HE, England 3.Univ Manchester, Sch Elect & Elect Engn, Manchester M13 9PL, Lancs, England |
| 推荐引用方式 GB/T 7714 | Wang, Haigang,Li, Yi,Qiu, Guizhi,et al. Measurement of gas-solids flow in loop seal and external heat exchanger in a circulating fluidized bed[J]. POWDER TECHNOLOGY,2014,266:249-261. |
| APA | Wang, Haigang,Li, Yi,Qiu, Guizhi,Song, Guoliang,&Yang, Wuqiang.(2014).Measurement of gas-solids flow in loop seal and external heat exchanger in a circulating fluidized bed.POWDER TECHNOLOGY,266,249-261. |
| MLA | Wang, Haigang,et al."Measurement of gas-solids flow in loop seal and external heat exchanger in a circulating fluidized bed".POWDER TECHNOLOGY 266(2014):249-261. |
入库方式： OAI收割
来源：工程热物理研究所
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