期刊
CHEMICAL ENGINEERING SCIENCE
卷 246, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2021.116992
关键词
Pneumatic conveying; Dense phase; Dilute phase; Lean phase; Pressure; Pressure drop
资金
- Australian Research Council [DP190103221]
This paper presents a model for predicting pressure drop variations in pneumatic conveying systems, which can significantly reduce the number of conveying trials required. The model is based on empirical curves of constant solids flow obtained from conveying trials, and it shows good agreement for materials capable of slug flow as well as fluidised dense-phase materials.
Due to their differences, predictive methods suitable for dilute and dense phase pneumatic conveying are rare in the literature. Conveying trials are often required to characterise a given system, where pressure drop measurements are plotted against gas mass flow rate for various solids flow rates. Empirical curves of constant solids flow are overlaid with measurements and resemble a 'J' shape. This paper presents a model for these curves based on the assumption that the pressure drop is a sum of two terms relating to the gas only influence and a combined gas and solids term. The model is validated for slug flow capable materials, where excellent agreement is obtained. However, it is concluded that the procedure is suitable for fluidised dense-phase capable materials as well. The developed model has the potential to significantly reduce the number of conveying trials required to characterise a pneumatic conveying system. (c) 2021 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据