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Wu E, Cheng L, Wei Y, Ma Z, Guo Q, Li W. Particle Residence Time Determination with More Than 400 Tracer Particles in a Circulating Fluidized‐Bed Full‐Loop System. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202200038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Erdong Wu
- Zhejiang University Institute for Thermal Power Engineering, State Key Laboratory of Clean Energy Utilization 310027 Hangzhou, Zhejiang China
| | - Leming Cheng
- Zhejiang University Institute for Thermal Power Engineering, State Key Laboratory of Clean Energy Utilization 310027 Hangzhou, Zhejiang China
| | - Yangjun Wei
- Zhejiang University Institute for Thermal Power Engineering, State Key Laboratory of Clean Energy Utilization 310027 Hangzhou, Zhejiang China
| | - Zhangke Ma
- Zhejiang University Institute for Thermal Power Engineering, State Key Laboratory of Clean Energy Utilization 310027 Hangzhou, Zhejiang China
| | - Qiang Guo
- Dongfang Boiler Group Co. Ltd. 643001 Zigong China
| | - Weicheng Li
- Dongfang Boiler Group Co. Ltd. 643001 Zigong China
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Ma H, Zhou L, Liu Z, Chen M, Xia X, Zhao Y. A review of recent development for the CFD-DEM investigations of non-spherical particles. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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3
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Xiao H, Zhang Y, Wang J. Correlating measurement qualities of cross-correlation based solids velocimetry with solids convection-mixing competing mechanism in different gas fluidization regimes. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Gagnon F, Desbiens A, Poulin É, Bouchard J, Lapointe-Garant PP. Grey-box model calibration and validation for a continuous horizontal fluidized bed dryer. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Comparison of particle-resolved DNS (PR-DNS) and non-resolved DEM/CFD simulations of flow through homogenous ensembles of fixed spherical and non‐spherical particles. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.02.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li J, Chen X, Ma J, Liang C. A method for measuring the residence time distribution of particles in a fluidized bed based on digital image analysis. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2021. [DOI: 10.1515/ijcre-2020-0177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Traditional methods for measuring the residence time distribution (RTD) of particles in a fluidized bed are complex and time-consuming. To this regard, the present work proposes a new measurement method with remarkable efficiency based on digital image analysis. The dyed tracers are recognized in the images of the samples due to the difference of colors from bed materials. The HSV and the well-known RGB color space were employed to distinguish the tracers. By enhancing the Saturation and the Value in HSV and adjusting the gray range of images, the recognition error is effectively reduced. Then the pixels representing the tracers are distinguished, based on which the concentration of the tracers and RTD are measured. The efficiency, accuracy and repeatability of the method were validated by RTD measurements experiments. The method is also fit for distinguishing the target particles from multi-component systems consisting of particles of different colors.
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Affiliation(s)
- Jiamin Li
- Key Laboratory of Energy Thermal Conversion and Control , Ministry of Education, School of Energy and Environment, Southeast University , Nanjing , P.R. China
| | - Xiaoping Chen
- Key Laboratory of Energy Thermal Conversion and Control , Ministry of Education, School of Energy and Environment, Southeast University , Nanjing , P.R. China
| | - Jiliang Ma
- Key Laboratory of Energy Thermal Conversion and Control , Ministry of Education, School of Energy and Environment, Southeast University , Nanjing , P.R. China
| | - Cai Liang
- Key Laboratory of Energy Thermal Conversion and Control , Ministry of Education, School of Energy and Environment, Southeast University , Nanjing , P.R. China
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Lan B, Xu J, Zhao P, Zou Z, Zhu Q, Wang J. Long-time coarse-grained CFD-DEM simulation of residence time distribution of polydisperse particles in a continuously operated multiple-chamber fluidized bed. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115599] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Marchelli F, Moliner C, Curti M, Bosio B, Arato E. CFD-DEM simulations of a continuous square-based spouted bed and evaluation of the solids residence time distribution. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.03.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Diez E, Kieckhefen P, Meyer K, Bück A, Tsotsas E, Heinrich S. Particle dynamics in a multi-staged fluidized bed: Particle transport behavior on micro-scale by discrete particle modelling. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.05.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hua L, Zhao H, Li J, Zhu Q, Wang J. Solid residence time distribution in a cross-flow dense fluidized bed with baffles. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.01.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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