Authors :
Syaiful Prihonoa; Sumariyah Sumariyaha; Eko Yuliantob; Muhammad Nura
Volume/Issue :
Volume 7 - 2022, Issue 8 - August
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3SoW379
DOI :
https://doi.org/10.5281/zenodo.7121848
Abstract :
Analysis of Electrohydrodynamic (EHD) Flow
Phenomenon through deformation on the surface of new
and used lubricating oil has been carried out. Positive
corona plasma discharge was generated using a reactor
with a point to plane electrode configuration. Voltage (V)
is increased from 0 kV until arc discharge. The applied
voltage interval is 0.2 kV. The distance between the
electrodes (d) was varied from 4 mm to 14 mm with an
interval of 2 mm. The results showed that the largest
current of 43 µA was obtained at the characterization
carried out at a distance between the electrodes of 14 mm
without a sample, while the smallest current 0,5 µA was
obtained at the distance between the electrodes of 4 mm
in the presence of a new lubricant sample. The ion wind
direction is influenced by the applied voltage and the
distance between the electrodes. The value of the ion wind
angle decreases with increasing distance between the
electrodes, and the ion wind angle increases with
increasing voltage. The value of the ionic wind angle in the
presence of used lubricating oil samples is greater than
that of new lubricating oil. The radius of deformation of
the lubricant by the ion wind is affected by the applied
voltage and the distance between the electrodes. The
radius increases with increasing distance between the
electrodes. The radius of deformation in used lubricating
oil is greater than in new lubricating oil. Termination of
applied voltage, circle deformation will close. The closing
of the circle deformation in new lubricating oil is faster
than used lubricating oil
Keywords :
EHD flow, lubricant oil, circle deformation, point to plane, positive corona
Analysis of Electrohydrodynamic (EHD) Flow
Phenomenon through deformation on the surface of new
and used lubricating oil has been carried out. Positive
corona plasma discharge was generated using a reactor
with a point to plane electrode configuration. Voltage (V)
is increased from 0 kV until arc discharge. The applied
voltage interval is 0.2 kV. The distance between the
electrodes (d) was varied from 4 mm to 14 mm with an
interval of 2 mm. The results showed that the largest
current of 43 µA was obtained at the characterization
carried out at a distance between the electrodes of 14 mm
without a sample, while the smallest current 0,5 µA was
obtained at the distance between the electrodes of 4 mm
in the presence of a new lubricant sample. The ion wind
direction is influenced by the applied voltage and the
distance between the electrodes. The value of the ion wind
angle decreases with increasing distance between the
electrodes, and the ion wind angle increases with
increasing voltage. The value of the ionic wind angle in the
presence of used lubricating oil samples is greater than
that of new lubricating oil. The radius of deformation of
the lubricant by the ion wind is affected by the applied
voltage and the distance between the electrodes. The
radius increases with increasing distance between the
electrodes. The radius of deformation in used lubricating
oil is greater than in new lubricating oil. Termination of
applied voltage, circle deformation will close. The closing
of the circle deformation in new lubricating oil is faster
than used lubricating oil
Keywords :
EHD flow, lubricant oil, circle deformation, point to plane, positive corona
