Analysis of repulsed dust from electrostatic curtain using different voltages


M. M. Abdullah, M. Al-Ansari & R. Ayad

College of science, University of Baghdad  



Abstract

Naturally dust particles are statically charged, they settle down on different surfaces. Experiments were conducted to study the rolled off dust particles from the surface of an electrostatic curtain. The value of the applied dc voltages to the electrostatic curtain is considered along with the diameters of accumulated dust particles. For this purpose, dust was collected and classified into three categories depending on the values of the particle diameter (20, 40 and 56 µm).

Fluorescence X-Ray results showed that the dust is composed of various elements such as lead, silver, nickel, copper and many others. The presence of those elements on the charged electrostatic curtain depends on their electrical conductivity and molecular weight. 



References:

(1) Holmes and Hannah, The Secret Life of Dust. Wiley. ISBN 0-471-37743-0, 2001.

(2) L. Svarosky, Powder Testing Guide: Methods of Measuring the Physical Properties of Bulk Powders (Elsevier Applied Science, Oxford, 1987.

(3) Adam J. Forsyth, Martin J. Rhodes, A Simple Model Incorporating the Effects of Deformation and Asperities into the van der Waals Force for Macroscopic Spherical Solid Particles,Journal of Colloid and Interface Science, Volume 223, Issue 1, 1 March , pp 133–138, 2000.

(4) B. Gady, D. Schleef, R. Reifenberger, D. Rimai and DeMejo, L. P., Phy. Rev. B 53 8065, 1996.

(5) K. Rietema, The Dynamics of Fine Powders (Elsevier, UK, 1991).

(6) J. Israelachvili, Intermolecular and Surface Forces (Academic Press), New York, USA,1992.

(7) M. M. Abdullah, R. Ayad and M. Al-Ansari, SnO2 Transparent Self- Cleaning Dust Shield for Solar Panels , International Journal of Application or Innovation in Engineering & Management (IJAIEM),  Vol. 2, Issue 11, Nov. 2013.