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http://dx.doi.org/10.5407/jksv.2021.19.3.039

A Study on Visualization of Fine Dust Captured by FOG Droplet  

Oh, Jinho (School of Mechanical Engineering, Pusan National University)
Kim, Hyun Dong (Rolls-Royce University Technology Center, Pusan National University)
Lee, Jung-Eon (Bopyong GRIN Company)
Yang, Jun Hwan (Bopyong GRIN Company)
Kim, Kyung Chun (School of Mechanical Engineering, Pusan National University)
Publication Information
Journal of the Korean Society of Visualization / v.19, no.3, 2021 , pp. 39-45 More about this Journal
Abstract
An experiment to visualize fine dust captured by FOG droplet is conducted. Coal dust with 23.56 MMD (Mean Median Diameter) and water with 17.02 MMD is used as fine dust and FOG droplet. Long distance microscope and high-speed camera are used to capture the images of micro-scale particles sprinkled by acrylic duct. After measuring and comparing the size of the coal dust and FOG droplet to MMD, process to seize the coal dust with FOG droplet is recorded in 2 conditions: Fixed and Floated coal dust in the floated FOG droplet flow. In both conditions, a coal dust particle is collided and captured by a FOG droplet particle. A FOG droplet particle attached at the surface of the coal dust particle does not break and remains spherical shape due to surface tension. Combined particles are rotated by momentum of the particle and fallen.
Keywords
Fine dust; FOG droplet; Particle collision; Particle coalescence;
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