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Study on performance of wave-plate mist eliminator with porous foam layer as enhanced structure. Part I: Numerical simulation
Xu, Yichen; Yang, Zhenming; Zhang, Jinsong; Zhang, JS (reprint author), Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
2017-11-02
发表期刊PERGAMON-ELSEVIER SCIENCE LTD
ISSN0009-2509
卷号171页码:650-661
摘要Wave-plate mist eliminator with porous foam layers as enhanced structures on vanes to improve separation efficiency for tiny droplets was proposed in this paper. Overall separation efficiency, grade separation efficiency and pressure drop of the mist eliminators were systematically studied by using Computational Fluid Dynamics (CFD) method. The Shear Stress Transport (SST) k-omega turbulence model and Discrete Phase Model (DPM) were adopted to describe the motion of gas phase and liquid phase, respectively. The computational field was simplified by introducing an assumption that the real 3D structure of porous foam can be equivalent to 2D layout with randomly arranged circles. The CFD results showed that the separation efficiency was enhanced by increasing the foam layer thickness. Moreover, a gradual increase in the foam porosity at fixed PPI (pores per inch) value made the,separation efficiency increased to a maximum value, then fall to a lower level, while by decreasing the PPI value of the loam at fixed porosity, the separation efficiency increased. Pressure drop was increased both with the increase in the foam layer thickness and PPI value as well as the decrease of the porosity. Furthermore, the flow field and the droplet trajectories were also analyzed. (C) 2017 Elsevier Ltd. All rights reserved.; Wave-plate mist eliminator with porous foam layers as enhanced structures on vanes to improve separation efficiency for tiny droplets was proposed in this paper. Overall separation efficiency, grade separation efficiency and pressure drop of the mist eliminators were systematically studied by using Computational Fluid Dynamics (CFD) method. The Shear Stress Transport (SST) k-omega turbulence model and Discrete Phase Model (DPM) were adopted to describe the motion of gas phase and liquid phase, respectively. The computational field was simplified by introducing an assumption that the real 3D structure of porous foam can be equivalent to 2D layout with randomly arranged circles. The CFD results showed that the separation efficiency was enhanced by increasing the foam layer thickness. Moreover, a gradual increase in the foam porosity at fixed PPI (pores per inch) value made the,separation efficiency increased to a maximum value, then fall to a lower level, while by decreasing the PPI value of the loam at fixed porosity, the separation efficiency increased. Pressure drop was increased both with the increase in the foam layer thickness and PPI value as well as the decrease of the porosity. Furthermore, the flow field and the droplet trajectories were also analyzed. (C) 2017 Elsevier Ltd. All rights reserved.
部门归属[xu, yichen ; yang, zhenming ; zhang, jinsong] chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [xu, yichen] univ chinese acad sci, beijing 100049, peoples r china
关键词Wave-plate Mist Eliminator Porous Foam Layer Droplet Separation Efficiency Pressure Drop Numerical Simulation
学科领域Engineering, Chemical
资助者Chinese Government, through the project of the State's High-tech Development Plan [2015AA03A602]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78990
专题中国科学院金属研究所
通讯作者Zhang, JS (reprint author), Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式
GB/T 7714
Xu, Yichen,Yang, Zhenming,Zhang, Jinsong,et al. Study on performance of wave-plate mist eliminator with porous foam layer as enhanced structure. Part I: Numerical simulation[J]. PERGAMON-ELSEVIER SCIENCE LTD,2017,171:650-661.
APA Xu, Yichen,Yang, Zhenming,Zhang, Jinsong,&Zhang, JS .(2017).Study on performance of wave-plate mist eliminator with porous foam layer as enhanced structure. Part I: Numerical simulation.PERGAMON-ELSEVIER SCIENCE LTD,171,650-661.
MLA Xu, Yichen,et al."Study on performance of wave-plate mist eliminator with porous foam layer as enhanced structure. Part I: Numerical simulation".PERGAMON-ELSEVIER SCIENCE LTD 171(2017):650-661.
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