Abstract
AbstractGranular filtration has been widely used for liquid filtration and hot gas filtration, but less is known for the filtration of airborne particles, especially the ultrafine ones, at the room conditions. A cylindrical packed bed was designed and tested for the filtration of particles in the range of about 10 nm to 15 µm in diameter at different configurations and kinetic conditions. Three sizes of uniform glass beads (2, 4, and 6 mm in diameter) were tested as the filtration media each at three media thicknesses (H = 2.5, 7.6, and 12.7 cm), and at two airflow rates (50 and 65 liters per minute). The filtration efficiencies were the lowest for particles between 0.1 and 1 µm in diameter. The particle filtration efficiency decreased with the increase in the granule size and the airflow rate, but a thicker bed corresponded to higher filtration efficiency. The experimental results showed much higher efficiency than existing models can predict, therefore, an empirical model using least square method is reported.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
