Modeling of trajectories in an electrodynamic screen for obtaining maximum particle removal efficiency

Mark N. Horenstein, Malay K. Mazumder, Robert C. Sumner, Jeremy Stark, Tareq Abuhamed, Raymond Boxman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An electrostatic self-cleaning panel for solar collectors is described. An electrodynamic screen is formed by inter-digitated, transparent surface electrodes energized by three-phase, low-frequency ac voltages in the range 5 to 200 Hz and 500 to 1000 V. The resulting electrostatic field wave exerts force on the particles and sweeps them laterally across the panel. Particle trajectories are simulated to help ascertain parameters for maximum dust-removal efficiency. The electric field of the electrodynamic screen is found by a Fourier expansion of Laplace's equation solutions for a surface potential that is periodic in space and time. Trajectories are found for particles of various size and charge, and electrode excitations; these are compared qualitatively to experimental observations. One unexpected result is the chaotic behavior of larger particles which jump sporadically back and forth and only slowly migrate in the direction of the impressed electrostatic surface wave.

Original languageEnglish
Title of host publication2011 IEEE Industry Applications Society Annual Meeting, IAS 2011
DOIs
StatePublished - 2011
Event2011 46th IEEE Industry Applications Society Annual Meeting, IAS 2011 - Orlando, FL, United States
Duration: 9 Oct 201113 Oct 2011

Publication series

NameConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ISSN (Print)0197-2618

Conference

Conference2011 46th IEEE Industry Applications Society Annual Meeting, IAS 2011
Country/TerritoryUnited States
CityOrlando, FL
Period9/10/1113/10/11

Keywords

  • dust
  • efficiency
  • electrodynamic
  • electrostatic
  • screen
  • self-cleaning
  • solar
  • trajectories

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