摘要：The method of entropy generation analysis was applied to examine the influences of the exit pipe diameter and the inlet dimensions on the entropy generation in cyclones. The flow fields of the cyclones were simulated using the Reynolds Stress Model (RSM). The simulation results were used to calculate three types of entropy generation caused by direct dissipation, turbulent dissipation and wall friction and then to determine the exergy loss. The results suggested that the exergy loss in cyclones increases with the inlet velocity and that it decreases with the exit pipe diameter and the inlet dimensional parameter K-A. In addition, the energy consumption in the cyclones mainly resulted from the turbulent dissipation and the wall friction. The regions near the vortex finder and the entrance of the dust hopper are the main energy consumption domains in the cyclone. The percentage of the entropy generation around the vortex finder first decreases and then increases with the increase of the exit pipe diameter and K-A, which is the opposite behavior to that around the entrance of the dust hopper. (C) 2015 Elsevier Ltd. All rights reserved.

关键字：Cyclone separator RSM Entropy generation analysis Exit pipe diameter Inlet dimensions

ISSN号：0009-2509

卷、期、页：卷: 138 页: 622-633

发表日期：2015-12-22

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：CHEMICAL ENGINEERING SCIENCE

通讯作者：段璐,方麒先

第一作者：吴小林,姬忠礼

论文类型：期刊论文

论文概要：段璐,吴小林,姬忠礼,方麒先，Entropy generation analysis on cyclone separators with different exit pipe diameters and inlet dimensions，CHEMICAL ENGINEERING SCIENCE，2015，卷: 138 页: 622-633

论文题目：Entropy generation analysis on cyclone separators with different exit pipe diameters and inlet dimensions