Title of article :
Effects of mixed electric field on characterization of electrohydrodynamics drying system
Author/Authors :
Heidari, Amir Abbas Laser and Plasma Research Institute - Shahid Beheshti University - Tehran, Iran , Seyfi, Pourya Laser and Plasma Research Institute - Shahid Beheshti University - Tehran, Iran , Khademi, Ahmad Laser and Plasma Research Institute - Shahid Beheshti University - Tehran, Iran , Ghomi, Hamid Laser and Plasma Research Institute - Shahid Beheshti University - Tehran, Iran
Abstract :
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 an electrohydrodynamic
(EHD) system then corona discharge parameters and EHD thrust characterization was investigated
by a corona dryer mechanism. The EHD thrust experiments were performed with a pin to plate and SDBD
arrangements. The results show that with the simultaneous application of two power supplies 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.
Keywords :
Surface dielectric barrier discharge (SDBD) , Ionic wind , Modulated voltage , Electrohydrodynamic (EHD) , Corona discharge
Journal title :
Journal of Theoretical and Applied Physics