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http://dx.doi.org/10.5762/KAIS.2014.15.1.593

A Study on the Hood Performance Improvement of Pickling Tank using CFD  

Jung, Yu-Jin (C.E.Tech Co. Ltd., R&D Center)
Park, Ki-Woo (Department of Environmental Energy System Engineering, Kyonggi University)
Shon, Byung-Hyun (Dept. of Environmental Engineering, Hanseo University)
Jung, Jong-Hyeon (Faculty of Health Science, Daegu Haany University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.1, 2014 , pp. 593-601 More about this Journal
Abstract
In this study, we investigated the methods of improving the capturing ability of acid fume by assessing the performance of slot-type external hood installed on both sides of an open surface tank for acid washing process. A field survey and the results of computational fluid dynamics revealed that capturing performance of existing hoods is very poor. To solve such problem, 'push-pull hood' that pushes from one side of an open surface tank and pulls on the other side was suggested. The initial prediction was that if a push-pull hood is used, the acid fume of an acid-washing tank surface could be moved towards the hood through the push flow. However, this study has confirmed that if the push flow velocity becomes too high, it could spread to other areas due to flooding from the hood. Therefore, if the push air supply is maintained at around 25 $m^3/min$(push 10 m/s), proper control flow is formed on the surface of a tank and acid fume that stayed at the upper part of the tank is smoothly captured toward the hood, significantly enhancing the capturing performance.
Keywords
Computational Fluid Dynamics; Exterior slot hood; Open surface tank; Push-pull hood;
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Times Cited By KSCI : 2  (Citation Analysis)
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