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¾²°²jingan: ½ð±Ò+1, ¹ÄÀøÓ¦Öú 2013-03-10 19:39:37
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¾²°²jingan: ½ð±Ò+1, ¹ÄÀøÓ¦Öú 2013-03-10 19:39:37
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¼ìË÷ÁË Accession number: 20130215879489 Title: 2D CFD simulation of hydrodynamics of the dense zone of a 65t/h high-low bed CFB Authors: Wang, Qing1 ; Xiao, Jianbo1 ; Liu, Hongpeng1 Author affiliation: 1 Engineering Research Centre of Oil Shale Comprehensive Utilization, Ministry of Education, Northeast Dianli University, Jilin 132012, Jilin Province, China Corresponding author: Wang, Q. (rlx888@126.com) Source title: Advanced Materials Research Abbreviated source title: Adv. Mater. Res. Volume: 614-615 Monograph title: Advances in Power and Electrical Engineering Issue date: 2013 Publication year: 2013 Pages: 596-599 Language: English ISSN: 10226680 ISBN-13: 9783037855515 Document type: Conference article (CA) Conference name: 2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012 Conference date: October 12, 2012 - October 14, 2012 Conference location: Jilin, China Conference code: 94737 Publisher: Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany Abstract: Gas-solid flow behavior of the bottom zone of a 65t/h High-low bed CFB was simulated using the commercial computational fluid dynamics (CFD) software package Fluent. The Eulerian-Eulerian model (EEM) based on the kinetic theory of granular flow (KTGF) was adopted. This approach treated each phase as continuous separately. The link between the gas and solid phases was through drag model and turbulence model. While the turbulence was simulated by the standard k-¦¥ and mixture multiphase model, the Gidaspow drag model was used to model the interphase interaction. Four phases were set to achieve size distribution in the EEM. Gas and solid flow profiles are obtained for solid velocity, solid volume fraction, pressure, and size distribution. The results show that EEM can predict preferably the internal circulation process of the dense zone high-low bed CFB. © (2013) Trans Tech Publications, Switzerland. Number of references: 10 Main heading: Computer simulation Controlled terms: Computational fluid dynamics - Drag - Electrical engineering - Flow of solids - Fluidized beds - Size distribution - Turbulence models Uncontrolled terms: CFD simulations - Circulating fluidized bed - Dense zones - Drag model - Eulerian-Eulerian - Flow profile - Gas-solid flows - Gidaspow drag model - High-low - Internal circulations - Interphase interaction - Kinetic theory of granular flow - Multiphase model - Software package - FLUENT - Solid phasis - Solid volume fraction Classification code: 423 Non Mechanical Properties and Tests of Building Materials - 443.1 Atmospheric Properties - 709 Electrical Engineering, General - 723.5 Computer Applications - 802.1 Chemical Plants and Equipment - 931.1 Mechanics DOI: 10.4028/www.scientific.net/AMR.614-615.596 Database: Compendex Compilation and indexing terms, © 2013 Elsevier Inc. |
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