Numerical simulation of performance of microfluidic inertial impactor

被引：0

作者：

Zhang W. ^{[1
]}

Niu F.-L. ^{[1
]}

Guo Z.-P. ^{[1
]}

Qi H.-B. ^{[1
,2
]}

Wang S.-J. ^{[1
]}

机构：

[1] School of Nuclear Science and Engineering, North China Electric Power University, Beijing

[2] Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing

来源：

Yuanzineng Kexue Jishu/Atomic Energy Science and Technology | 2017年 / 51卷 / 12期

关键词：

Collection efficiency; Filtration; Microfluidic inertial impactor;

D O I：

10.7538/yzk.2017.51.12.2113

中图分类号：

学科分类号：

摘要：

Collecting micron aerosol particles with microfluidic inertial impactor is a new filtration way, which made up the deficiencies of existing filtration methods and the feasibility has been demonstrated. But airflow pressure loss in the existing microfluidic inertial impactor is large and its processing technology is complex. A new type of microfluidic inertial impactor was designed and studied, and CFD software was used to simulate the characteristics of flow fields and performance of microfluidic inertial impactor. A mathematical model was established. The gas phase used the laminar model and the particles phase used discrete phase model (DPM). By simulation the effects of the impactor with different structure parameters on the collection efficiency were analyzed. The results show that the turning angle and impactor size D have great influence on collection efficiency. The smaller the turning angle, the higher the collection efficiency, and when D≤1/2, the efficiency curve is substantially retained. © 2017, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：2113 / 2117

页数：4

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