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Humidity Effect on the Separation Efficiency of Cylindrical Cyclone Separator

[+] Author Affiliations
Alireza Moallemi, Maysam Saidi, Hassan Basirat Tabrizi

Amirkabir University of Technology, Tehran, Iran

Paper No. IMECE2014-37284, pp. V007T09A006; 5 pages
doi:10.1115/IMECE2014-37284
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 7: Fluids Engineering Systems and Technologies
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4954-5
  • Copyright © 2014 by ASME

abstract

In order to evaluate the humidity effect on the performance of a gas-solid cyclone, an experimental setup is designed including a cylindrical cyclone with a tangential inlet, air compressor, humidifier, flow meter and injector of particles with known properties. The cyclone body is a cylinder with diameter and height of 50 and 150 mm, respectively and the rectangular inlet with dimension of 10 mm × 22 mm. The solid particles used in the experiments are cement because of the application of cyclones in air purification in cement industry. The injection of particle is performed with a controlled rate. A humidifier device increases the relative humidity of the inlet flow from 30 to 100 percent. Separation efficiency is defined as the ratio of collected to injected particles and calculated for different inlet airflow rates for dry and humidified conditions. Obtained results for this experiment indicates humidity has a favorable effect on increasing the efficiency of a cyclone separator. Although increasing the humidity of the air increases the density, which has an adverse effect on the separation efficiency, it is negligible in contrast to its benefits on agglomeration of particles.

Copyright © 2014 by ASME

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