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http://dx.doi.org/10.5407/jksv.2019.17.1.043

Experimental study on enhancement of drying efficiency of organic solvent using ionic wind  

Lee, Jae Won (School of Mechanical Engineering, Sungkyunkwan University)
Sohn, Dong Kee (School of Mechanical Engineering, Sungkyunkwan University)
Ko, Han Seo (School of Mechanical Engineering, Sungkyunkwan University)
Publication Information
Journal of the Korean Society of Visualization / v.17, no.1, 2019 , pp. 43-52 More about this Journal
Abstract
'Ionic wind' is phenomenon induced by corona discharge which occurs when large electric potential is applied to electrodes with high curvature. The ionic wind has advantage that it could generate forced convective flow without any external energy like separate pump. In this study, 'pin-mesh' arrangement is utilized for experiments. First, optimization of configuration is conducted with local momentum of ionic wind behind the mesh. Empirical equation for prediction about velocity profile was derived using the measured results. Secondly, the enhancement of mass transfer rate of acetone with ionic wind was analyzed. Also, the drying efficiency using a fan which has same flow rate was compared with ionic wind for identification of additional chemical reaction. At last, the drying process of organic solvent was visualized with image processing. As a result, it was shown that the use of ionic wind could dry organic matter four times faster than the natural condition.
Keywords
Ionic wind; Corona discharge; Image processing; Drying efficiency;
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