EXPERIMENTAL STUDY OF AEROSOL DISTRIBUTION AND CONCENTRATION VARIATION THROUGH CURVED DUCTS

Abstract

This paper presents an experimental investigation of an aerosol problem by dopting two methods. One approach utilizes scanning electron microscope to tudy the realistic aerosol deposition status in a typical duct bend. Through scanning lectron microscope images and on-site observation, the aerosols tend to eposit and accumulate more on the outer bend wall and bend outlet wall. The ther approach is to design systematic experiments to measure aerosol concentration ariation and distribution through 90-degree curved ducts. This experimental ethod is simple for realistic applications. Measured results show that he average particle volume concentration diverges greatly after flowing through he bend. The loading ability decreases significantly for larger particles at bend utlet under higher Dean number.

Keywords

Dates

  • Submission Date2012-08-01
  • Revision Date2012-09-06
  • Acceptance Date2012-09-13

DOI Reference

10.2298/TSCI1205437S

References

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