文献类型：期刊文献

英文题名：Impact of liquid driving flow on the performance of a gas-inducing impeller

作者：Wang, Zhenyuan[1];Xu, Peng[1];Li, Xuehua[2];Wang, Shuxu[2];Cheng, Zhenmin[1];Ju, Fan[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Chinese Natl Gas & Petr Corp, East China Design Inst, Qingdao 266071, Peoples R China

年份：2013

卷号：69

起止页码：63

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20132216372198);WOS:【SCI-EXPANDED(收录号:WOS:000320351000008)】；

基金：The present work was supported under grants No. 2010E-2004-02 by China National Petroleum Corporation, No. 21076072 by Natural Science Foundation of China, and by the Fundamental Research Funds for the Central Universities in China.

语种：英文

外文关键词：Gas-inducing impeller; Gas-induction intensification; Liquid-inlet holes; Gas-induction properties; Optimum size; Mathematical model

摘要：The present work was conducted to improve the gas-induction performance over a preliminary gas-inducing impeller designed in our previous work. For the first time, a series of liquid-inlet holes with different diameters were drilled separately so as to examine their effects on the gas-induction process and also to find the optimum size. The critical impeller speed (N-CG) and the overall gas hold-up (epsilon(G)) were measured experimentally in order to evaluate the properties of the gas-inducing impeller. A mathematical model, which takes into account the geometrical parameters of the gas-inducing impeller, was proposed to predict N-CG of the gas-inducing impeller with or without liquid-inlet holes. The predictions are in good agreement with the experimental results. The results also show that the optimum gas-induction properties would be obtained with respect to the lowest value of N-CG and the highest value of epsilon(G), when the diameter of the liquid-inlet hole is approximately 0.5 times the diameter of the gas-inducing pipe. (c) 2013 Elsevier B.V. All rights reserved.