THE PRESSURE DISTRIBUTION IN AND FLOW CHARACTERISTICS OF WIDE-ANGLE DIFFUSERS USING PERFORATED PLATES FOR FLOW-CONTROL WITH APPLICATION TO ELECTROSTATIC PRECIPITATORS


SAHIN B. , WARDSMITH .

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, vol.35, no.2, pp.117-127, 1993 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 2
  • Publication Date: 1993
  • Doi Number: 10.1016/0020-7403(93)90070-b
  • Title of Journal : INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
  • Page Numbers: pp.117-127

Abstract

To perform effectively, electrostatic precipitators require a highly uniform velocity distribution in the treatment zone. This requirement places particular demands on the design of the wide-angle diffuser upstream of the treatment zone. To generate satisfactory diffuser exit velocity profiles, perforated plates are installed within the diffuser. This paper provides a report of an experimental investigation of the nature of the flow generated by installing two perforated plates in the diffuser. Detailed measurements of the static pressure distribution and flow patterns are reported. The effects of altering the porosity and locations of the perforated plates on the flow and pressure loss characteristics are considered.