期刊
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
卷 30, 期 3, 页码 627-641出版社
SPRINGER HEIDELBERG
DOI: 10.1590/S0104-66322013000300020
关键词
Cyclone; Separation; Computational fluid dynamics; Oak sawdust
资金
- Ministry of Education, Science, Research and Sport of the Slovak Republic [027TUZVO-4/2011]
The paper shows the analysis of the effect of introduction of an exit tube into the cylindrical part of a cyclone on the flow velocity, pressure losses and, above all, the separation efficiency. We made measurements and carried out CFD simulations for three levels of the exit tube introduction. The ratios of the depth of the exit tube introduction to the cyclone diameter (Hp/D) were 0.4, 0.475 and 0.89 at three velocity settings of 8 m.s(-1), 13 m.s(-1) and 15 m.s(-1). The Reynolds Stress Model (RSM), which was compatible with the experimental results, was used for numerical solutions. The efficiency of cyclone separation was explored on a sample of oak sawdust. The efficiency of cyclone separation increased with the geometric size of the particles, the inlet velocity and a deeper introduction of the exit tube.
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