3D CFD-DEM STUDY OF GAS-SOLIDS FLOW AND HEAT TRANSFER IN A FULL-LOOP CIRCULATING FLUIDIZED BED

摘要：

　　In this work, an extended CFD-DEM approach is developed to study the gas-solids flow and heat transfer between bed and riser wall in three-dimensional full-loop circulating fluidized bed.The effects of some operational, such as superficial gas velocity and solids inventory, on the heat transfer coefficient between bed and riser wall are investigated.The governing heat transfer modes such as wall-fluid convection, wall-particle conduction, are then discussed to gain better understanding about heat transfer between bed and wall in circulating fluidized beds.This work demonstrates that the developed 3D CFD-DEM approach could be a useful tool to study the coupled fluid flow and heat transfer in such a complex system.

关键词： heat transfer fluidisation computational fluid dynamics discrete element method circulating fluidized bed

作者: H.Wahyudi K.W.Chu A.B.Yu

作者单位: Laboratory for Simulation and Modelling of Particulate Systems,School of Materials Science and Engineering,The University of New South Wales,Sydney Australia

会议类型: 国际会议

会议名称: The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)

会议地点: 北京

会议语种:英文

页码: 341-346

在线出版日期: 2014-05-14（万方平台首次上网日期，不代表论文的发表时间）