Design of Novel Hydrocyclone for Improving Fine Particle Separation using Computational Fluid Dynamics
學年 101
學期 1
出版（發表）日期 2013-01-14
作品名稱 Design of Novel Hydrocyclone for Improving Fine Particle Separation using Computational Fluid Dynamics
作品名稱（其他語言）
著者 Hwang, Kuo-jen; Hwang, Y. W.; Yoshida, H.
單位 淡江大學化學工程與材料工程學系
出版者 Kidlington: Pergamon
著錄名稱、卷期、頁數 Chemical Engineering Science 85(14), pp.62-68
摘要 Several novel hydrocyclones are designed to improve fine particle separation using computational fluid dynamics. The effects of inlet size, number of inlets and top-plate types on the particle separation efficiency and cut-size sharpness are discussed based on the same feed flow rates. The fluid and particle flows are simulated using a segregated, steady-state, 3-dimensional implicit numerical solver supplied by FLUENT software. The governing equations are coupled using the SIMPLE algorithm, while the Reynolds stress model is employed for the hydrocyclone turbulent model due to its' anisotropic nature. Particle trajectories are simulated based on a Lagrangian frame considering the continuous phase interactions. The simulated particle separation efficiencies approximately agree with the available experimental data. The results show that increasing the inlet number and narrowing the inlet width are effective ways to improve the particle separation efficiency due to the increase in fluid velocity in the cylindrical parts of hydrocyclone. A cone-shaped top-plate reduces the fine particle circulation area near the outer surface of overflow conduit, significantly improving the separation efficiency of fine particles. However, increasing the cone angle has a contrary effect because of the decrease in particle residence time. Although installing an extra guide-channel from the inlet may also improve the fine particle separation efficiency, it is not effective for particle classification because of reduced particle cut-size sharpness.
關鍵字 Hydrocyclone; Particle separation; Particle classification; Particle trajectory; Computational fluid dynamics; Reynolds stress model
語言 en_US
ISSN 0009-2509
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 GBR
公開徵稿
出版型式 紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/88287 )

機構典藏連結