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A CFD study on optimal venting volume and air flow distribution in a special designed hood system for controlling dust flow |
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| Authors: | Song Gaoju Yang Lei Shen Henggen |
| Affiliation: | 1. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;No.6 Institute of Project Planning & Research of Machinery Industry, Zhengzhou 450007,China 2. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;Zhongyuan University of Technology, Zhengzhou 450007, China 3. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China |
| Abstract: | A novel hood structure has been designed for the dust control system in the foundry in order to improve the working environment.A composite strategy has been applied for comparative analysis of the optimal venting volume and the airflow distribution between the conventional hood and the novel one in this study.A Computational Fluid Dynamic (CFD) method is used to simulate the airflow fields and dust-polluted air moving paths.The CFD results show that a two-outlet hood,with one outlet located on the left of the hood,is better for improving dustpolluted air than the hood with one outlet only.It can be concluded that the number of the outlets as well as their location on the hood has a significant influence on the air flow pattern in the hood.The optimal venting volume is also a major consideration that is discussed in the study.The venting volume should be designed by considering both the effective level of air flow velocity around the dust source and the energy saving.The optimal airflow distribution may reduce the turbulence in the hood system. |
| Keywords: | venting volume air flow distribution hood flask shaker CFD |
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