Charging and deformation of Water droplets on Composite insulating surface stressed by DC electric high voltage

Jean Ndoumbe (1, 2) , Abderrahmane Beroual (1) , Adolphe Moukengué Imano (2)

1 EE - Ampère, Département Energie Electrique
2 Faculté des Sciences [Douala]

This paper deals with experimental investigations of the charging and the deformation of water droplets sitting on composite insulating (silicon rubber) surface under non-uniform DC high voltage electric field. Accordingly, the effects of electrodes geometry, droplets size and water droplet conductivity are analyzed. The amount of charge on water droplet surface was estimated through the measurement of current flowing in the circuit. Increasing the electric field strength, the charges accumulates on the droplet surface also increases. The results obtained show that the charges acquired by droplet increases with droplet size. It also shown that electrode geometry have a significantly effect on the amount of charges on droplet surface.

Domaines: Energie électrique

Jean Ndoumbe, Abderrahmane Beroual, Adolphe Moukengué Imano. Charging and deformation of Water droplets on Composite insulating surface stressed by DC electric high voltage. ISH, Aug 2013, Séoul, South Korea. pp.OD2-04. ⟨hal-00921843⟩