Cookies Policy
Cookie Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Experimental study on electrostatic particle deposition from gas–solids two-phase flow based on tribo-electrification

MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.

Buy this article

$30.00+ Tax (if applicable)
Add to Favorites

Electrostatic particle deposition on a target embedded in a substrate under a locally applied voltage has been investigated experimentally based on the tribo-electrification of particles. Initially particles deposit mainly on the edge of the target because of the contact potential difference between substrate (poly(methyl methacrylate)) and target (brass). The thickness of particle layer formed by the deposited particles increases with time, but gradually saturates. Since then almost no additional particles deposit on the target. When high voltage is applied to the target, an orange peel phenomenon is observed on the surface of the particle layer. In the central region of the target, the particles under high Stokes number, St, do not deposit because of the particle rebound and the resuspension of deposited particles. The larger the Coulombic force parameter KE, the higher the effective deposition velocity is. The velocity increases dramatically for KE ≥ 6 × 10−6 and 20 < St < 60. The larger Stokes number makes the coefficient of variation larger for the thickness of the particle layer, i.e. the deposition under higher Stokes number gives a less uniform deposition layer. However, for St < 10, particles deposit almost uniformly. For the deposition under a larger Coulombic force parameter, onset of the rebound and resuspension is suppressed, and the region with a uniform deposition layer is shifted to a higher Stokes number. It is also found that particles can successfully deposit on a non-conductive target of a dielectric substance through setting a grounded guard electrode around the target.


Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Create email alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Advanced Powder Technology — Recommend this title to your library

    Thank you

    Your recommendation has been sent to your librarian.

  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation