Distribution and motion feature of crystallization particle in centrifugal pump

被引：0

作者：

Liu D. ^{[1
]}

Fu B. ^{[1
]}

Tang C. ^{[1
]}

Ding S. ^{[1
]}

机构：

[1] School of Energy and Power Engineering, Jiangsu University, Zhenjiang

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2018年 / 39卷 / 11期

关键词：

Centrifugal pump; Crystal growth model; Crystal nucleation model; Crystallization; Particle size distribution; Population balance model;

D O I：

10.11990/jheu.201707066

中图分类号：

学科分类号：

摘要：

For the deepen understanding of salt-out two phase flow in centrifugal pump, the software FLUENT was used to calculate the flow field in a centrifugal pump. The population balance module was loaded and user-defined crystal growth and nucleation models were used on the basis of a two-phase mixture model to obtain the variation law of flow field at different flow rates and volume concentrations of solid phase. When the research results were compared with the particle balance model(PB M),which only considers the coalescence and breakage,it was found that the average size of particles in the impeller and the head and efficiency of the pump are close to those of the experimental data when the calculation considers both nucleation and growth of crystallization particle. On the other hand,the distribution of average particle size is significantly affected by the pump operating conditions and volume concentration of solid phase. It was observed that the distribution of large-size particles agrees with that of average-size particles; however,the distributions of middle and small-size particles are opposite. © 2018, Editorial Department of Journal of HEU. All right reserved.

引用

页码：1848 / 1853

页数：5

共 14 条

[11] Drumm C., Attarakih M.M., Bart H.J., Coupling of CFD with DPBM for an RDC extractor, Chemical Engineering Science, 64, 4, pp. 721-732, (2009)
[12] Immanuel C., Doyle F.J., Solution technique for a multi-dimensional population balance model describing granulation processes, Powder Technology, 156, 2-3, pp. 213-225, (2005)
[13] Li H., The Study on crystallization thermodynamics and kinetics of sodium sulfate with ultrasound, (2013)
[14] Yang M., Kang C., Dong X., Et al., Influence of blade outlet angle on inner flow field of centrifugal pump transporting salt aqueous solution, Chinese Journal of Mechanical Engineering, 22, 6, pp. 912-917, (2009)

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