Polytechnic University of Valencia Congress, 21st International Drying Symposium

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Electrohydrodynamic (EHD) drying: fundamentals and applications
Alex I Martynenko, Tadeusz Kudra

Last modified: 03-01-2019

Abstract


Following background to the phenomenon of electrohydrodynamics with concise review of basic features like shorter drying time, lower energy consumption and better product quality, the selected key factors affecting EHD drying are examined. These include the geometry of discharge electrodes, effects of air humidity on drying rate, depression of material temperature, and cooling effect of ionic wind.

Examples are given for: (i) prototype EHD dryers of multi-belt types, and (ii) pilot-scale multi-belt EHD dryer in vertical arrangement that can be aggregated into one unit of higher capacity, and vertical cylindrical EHD dryer with vibrated shelves.

Keywords: ionic wind; corona discharge; drying; energy; quality

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