文献类型：期刊文献

英文题名：Powder discharge from a hopper-standpipe system modelled with CPFD

作者：Lu, Haifeng[1];Guo, Xiaolei[1];Jin, Yong[1];Gong, Xin[1];Zhao, Wei[1];Barletta, Diego[2];Poletto, Massimo[2]

机构：[1]East China Univ Sci & Technol, Key Lab Coal Gasificat & Energy Chem Engn, Minist Educ, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China;[2]Univ Salerno, Dipartimenta Ingn Ind, Via Giovanni Paolo 2,132, I-84084 Fisciano, SA, Italy

年份：2017

卷号：28

期号：2

起止页码：481

外文期刊名：ADVANCED POWDER TECHNOLOGY

收录：;EI(收录号：20170103208638);WOS:【SCI-EXPANDED(收录号:WOS:000397172700018)】；

基金：This work was supported by the National Natural Science Foundation of China (21206041) and the Fundamental Research Funds for the Central Universities. The authors thank the anonymous reviewers for their helpful suggestions on the quality improvement of this article.

语种：英文

外文关键词：CPFD; Powder discharge; Hopper; Standpipe; Solid discharge rate

摘要：In this paper, computational particle fluid dynamic (CPFD) modelling approach was used to describe the discharge of a fine glass beads powder from different hopper-standpipe geometries. The comparison between the CPFD predictions and the experimental results in terms of solid discharge rates, surface cone shape during discharge and pressure drops in the standpipe. The comparison allowed to assess on the possibility to use the CPFD modelling approach to simulate the powder flow in the hopper-standpipe system even accounting for the rather complex interactions between the interstitial gas and the particles occurring in the presence of a standpipe. Furthermore, the effect of hopper geometry on powder discharge was investigated with the CPFD model and verified experimentally in some purposely built hoppers. Finally, the relationships between the hopper geometry parameters (hopper outlet diameter and hopper half angle) and the flow parameters (solid discharge rate, height of characteristic surface, particle volume fraction, particle velocity, gas pressure and flow pattern) were obtained. (C) 2016 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.