Study of the pressure drop of dense phase gas-solid flow through nozzle

被引：21

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

来源：

POWDER TECHNOLOGY | 2009年 / 189卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Nozzle pressure drop; Dense phase pneumatic conveying; Pulverized coal; Additional pressure drop; PNEUMATIC TRANSPORT; HEAT-TRANSFER;

D O I：

10.1016/j.powtec.2008.06.007

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

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.

引用

页码：82 / 86

页数：5

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