Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov Entropy
The gas-solid flow state determines the gas-solid mixing, heat and mass transfer characteristics in the fluidized bed, and plays an important role in the design, operation and monitoring of the fluidized bed device. In a self-built cold gas-solid bubbling fluidized bed, voidage fluctuation signals w...
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| Format: | Article |
| Language: | English |
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Editorial Department of Power Generation Technology
2021-06-01
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| Series: | 发电技术 |
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| Online Access: | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.20041 |
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| author | Feng HAN Kunlin CONG Jie XIANG Qinghai LI Yanguo ZHANG Jing MA |
| author_facet | Feng HAN Kunlin CONG Jie XIANG Qinghai LI Yanguo ZHANG Jing MA |
| author_sort | Feng HAN |
| collection | DOAJ |
| description | The gas-solid flow state determines the gas-solid mixing, heat and mass transfer characteristics in the fluidized bed, and plays an important role in the design, operation and monitoring of the fluidized bed device. In a self-built cold gas-solid bubbling fluidized bed, voidage fluctuation signals were measured using the particle concentration measuring instrument at the center of the fluidized bed under different working conditions, and were analyzed by chaotic theory using Kolmogorov entropy. The influences of apparent gas velocity, static bed height and bed size were studied. It shows the apparent gas velocity has the largest influence on Kolmogorov entropy, followed by the static bed height, and the smallest is bed size. |
| format | Article |
| id | doaj-art-b6516fbc64904fdb9eb7a665f656f86c |
| institution | OA Journals |
| issn | 2096-4528 |
| language | English |
| publishDate | 2021-06-01 |
| publisher | Editorial Department of Power Generation Technology |
| record_format | Article |
| series | 发电技术 |
| spelling | doaj-art-b6516fbc64904fdb9eb7a665f656f86c2025-08-20T02:14:30ZengEditorial Department of Power Generation Technology发电技术2096-45282021-06-0142332232810.12096/j.2096-4528.pgt.20041fdjs-42-3-322Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov EntropyFeng HAN0Kunlin CONG1Jie XIANG2Qinghai LI3Yanguo ZHANG4Jing MA5Beijing Nowva Energy Power Technology Co., Ltd., Haidian District, Beijing 100085, ChinaDepartment of Energy and Power Engineering, Tsinghua University, Haidian District, Beijing 100084, ChinaRundian Energy Science and Technology Co., Ltd., Zhengzhou 450000, Henan Province, ChinaDepartment of Energy and Power Engineering, Tsinghua University, Haidian District, Beijing 100084, ChinaDepartment of Energy and Power Engineering, Tsinghua University, Haidian District, Beijing 100084, ChinaBeijing Nowva Energy Power Technology Co., Ltd., Haidian District, Beijing 100085, ChinaThe gas-solid flow state determines the gas-solid mixing, heat and mass transfer characteristics in the fluidized bed, and plays an important role in the design, operation and monitoring of the fluidized bed device. In a self-built cold gas-solid bubbling fluidized bed, voidage fluctuation signals were measured using the particle concentration measuring instrument at the center of the fluidized bed under different working conditions, and were analyzed by chaotic theory using Kolmogorov entropy. The influences of apparent gas velocity, static bed height and bed size were studied. It shows the apparent gas velocity has the largest influence on Kolmogorov entropy, followed by the static bed height, and the smallest is bed size.https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.20041gas-solid bubbling fluidized bedvoidagetime-series analysischaotic analysiskolmogorov entropy |
| spellingShingle | Feng HAN Kunlin CONG Jie XIANG Qinghai LI Yanguo ZHANG Jing MA Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov Entropy 发电技术 gas-solid bubbling fluidized bed voidage time-series analysis chaotic analysis kolmogorov entropy |
| title | Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov Entropy |
| title_full | Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov Entropy |
| title_fullStr | Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov Entropy |
| title_full_unstemmed | Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov Entropy |
| title_short | Analysis of Voidage Fluctuations in Gas-Solid Bubbling Fluidized Bed Based on Kolmogorov Entropy |
| title_sort | analysis of voidage fluctuations in gas solid bubbling fluidized bed based on kolmogorov entropy |
| topic | gas-solid bubbling fluidized bed voidage time-series analysis chaotic analysis kolmogorov entropy |
| url | https://www.pgtjournal.com/EN/10.12096/j.2096-4528.pgt.20041 |
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