Effects of mixed electric field on characterization of electrohydrodynamics drying system
الموضوعات : Journal of Theoretical and Applied PhysicsHamid Ghomi 1 , Pourya Seyfi 2 , Ahmad Khademi 3 , Amir Heidari 4
1 - Laser and Plasma Research Institute, Shahid Beheshti University
2 - Laser and Plasma Research Institute, Shahid Beheshti University
3 - Laser and Plasma research institute, Shahid Beheshti University
4 - Laser and Plasma Research Institute, Shahid Beheshti University
الکلمات المفتاحية: Ionic wind, Modulated voltage, Electrohydrodynamic (EHD), Surface dielectric barrier discharge (SDBD), Corona discharge,
ملخص المقالة :
In this paper, we present a new structure of applying two electrical power supplies to generate ionic wind.In this configuration, two power supplies were applied simultaneously with a modulated voltage to anelectrohydrodynamic (EHD) system then corona discharge parameters and EHD thrust characterizationwas investigated by a corona dryer mechanism. The EHD thrust experiments were performed with a pinto plate and SDBD arrangements. The results show that with the simultaneous application of two powersupplies the drying rate in a drop of water as a standard sample was greatly enhanced and the drying time was reduced. Thus, the total evaporation was occurred in 1 minute in the SDBD structure with a power of 7 watts and in 1.5 minutes in pin to plate structure with a power of 2.5 watts. Eventually, it was observed that the use of mixed electric fields enhances the ionic wind, hence increases the non-thermal evaporation process significantly. Furthermore, the drying rate has grown notably In SDBD configuration.
