文献类型：期刊文献

英文题名：Study of the pressure drop of dense phase gas-solid flow through nozzle

作者：Huang, Wanjie[1];Gong, Xin[1];Guo, Xiaolei[1];Dai, Zhenghua[1];Liu, Haifeng[1];Cao, Zhuwei[1];Wang, Chuanhong[1]

机构：[1]E China Univ Sci & Technol, Key Lab Coal Gasificat, Minist Educ, Inst Clean Coal Technol, Shanghai 200237, Peoples R China

年份：2009

卷号：189

期号：1

起止页码：82

外文期刊名：POWDER TECHNOLOGY

收录：;EI(收录号：20085211809218);WOS:【SCI-EXPANDED(收录号:WOS:000263015600013)】；

基金：This work was supported financially by the National Natural Science Foundation of China (No.20576038), and the National Key Program of Basic Research in China (2004CB217700).

语种：英文

外文关键词：Nozzle pressure drop; Dense phase pneumatic conveying; Pulverized coal; Additional pressure drop

摘要：Pressure drops are measured on different nozzles of various pipe sizes in dense phase pulverized coal pneumatic conveying. From the experimental results, we conclude that the effect of the gas phase nozzle pressure drop is negligible when comparing with the solid phase pressure drop in the experimental range. The main influence factors contributing to the nozzle pressure drop are gas and solid mass flow rate, solids loading ratio, I and the diameters of the nozzle inlet and outlet. A new model was developed to predict the nozzle pressure drop in dense phase pneumatic conveying of pulverized coal based on the Barth's pneumatic conveying theory. The pressure drop predictions from the model are in good agreement with the experimental values. The model quantified the important influence factors of the nozzle pressure drop. (C) 2008 Elsevier B.V. All rights reserved.