Electrohydrodynamic atomization limitations at atmospheric conditions due to corona discharge

Electrohydrodynamic atomization (EHDA) is the process during which nanoparticles are generated and charged by means of an electrostatic field. From atomization literature, it is clear that the use of nanoparticles is essential to make advances in the fields of industrial and medical applications in the near future. This work proposes a new model to be used for approximating the corona onset fields for general atomization geometries, using them to calculate the maximum surface tension of the liquids to be atomized. The resultant model approximates the corona onsets in terms of the geometry and the relative permittivities, being independent of the surface tension, in contrast with previous theories. In addition, a new model is proposed to calculate the polarization fields of point-to-plane atomization geometries.