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Experimental and Eulerian-Lagrangian-Lagrangian study of binary gas-solid flow containing particles of significantly different sizes
Zhang, Yong1,2; Zhao, Yuemin1; Gao, Zhonglin1; Duan, Chenlong1; Xu, Ji2; Lu, Liqiang2; Wang, Junwu2,3; Ge, Wei2,3
2019-06-01
Source PublicationRENEWABLE ENERGY
ISSN0960-1481
Volume136Pages:193-201
AbstractThe coexistence of large particles (such as biomass or coal particles) and fine particles in gas-solid flow is common. In this study, an Eulerian-Lagrangian-Lagrangian method (EMMS-DPM-DEM) was developed to simulate the binary gas-solid flow containing particles of significantly different sizes, where fine particles were simulated using coarse grained discrete element method and the motion of large particles was captured using discrete element method. Experiments on density segregation of large particles were also carried out to validate the developed simulation method. It was shown that EMMS-DPM-DEM can predict the density segregation process of large particles reasonably well. Furthermore, the density segregation mechanism of large particles in a dense fluidized bed was explained at different scales, i.e., the Archimedes principle at macroscale, the entrainment and the global circulation pattern due to bubble motions at mesoscale and the particle-particle and gas-particle interactions at microscale. The method proposed here can be directly used to study the hydrodynamics of biomass thermochemical conversion in fluidized beds, although it was validated using segregation experiments of coal particles. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordFluidization Coarse-grained model Bubble motions Multi-scale analysis Density segregation
DOI10.1016/j.renene.2018.12.121
Language英语
WOS KeywordBENEFICIATION FLUIDIZED-BED ; LOW-ASH COAL ; FUEL-PARTICLES ; SIMULATION ; SEGREGATION ; MOTION ; PERFORMANCE ; FORMULATION ; SEPARATION ; ADMFB
Funding ProjectFundamental Research Funds for the Central Universities[2017BSCXA11] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYCX17_1514]
WOS Research AreaScience & Technology - Other Topics ; Energy & Fuels
WOS SubjectGreen & Sustainable Science & Technology ; Energy & Fuels
Funding OrganizationFundamental Research Funds for the Central Universities ; Postgraduate Research & Practice Innovation Program of Jiangsu Province
WOS IDWOS:000460847800016
PublisherPERGAMON-ELSEVIER SCIENCE LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28184
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Junwu; Ge, Wei
Affiliation1.China Univ Min & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou 221116, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, POB 353, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yong,Zhao, Yuemin,Gao, Zhonglin,et al. Experimental and Eulerian-Lagrangian-Lagrangian study of binary gas-solid flow containing particles of significantly different sizes[J]. RENEWABLE ENERGY,2019,136:193-201.
APA Zhang, Yong.,Zhao, Yuemin.,Gao, Zhonglin.,Duan, Chenlong.,Xu, Ji.,...&Ge, Wei.(2019).Experimental and Eulerian-Lagrangian-Lagrangian study of binary gas-solid flow containing particles of significantly different sizes.RENEWABLE ENERGY,136,193-201.
MLA Zhang, Yong,et al."Experimental and Eulerian-Lagrangian-Lagrangian study of binary gas-solid flow containing particles of significantly different sizes".RENEWABLE ENERGY 136(2019):193-201.
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