Design and performance evaluation of plasma air cleaning systems for removing yellow sand dust |
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Authors: | Email author" target="_blank">Jae-Keun?LeeEmail author Ju-Ho?Ock Seong-Chan?Kim Hyung-Soo?Noh Young-Chull?Ahn Yu-Jin?Hwang Chang-Gun?Lee Tae-Wook?Kang Kam-Gyu?Lee |
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Affiliation: | (1) Department of Mechanical Engineering, Pusan National University, San 30, Jangjeon-dong, Keumjeong-ku, 609-735 Busan, Korea;(2) LG Electronics Inc., Airconditioners OBU, 76, Seongsan-dong, 641-713 Changwon, Korea |
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Abstract: | Yellow sand dust (Asian dust storms) causes harmful damage indoors and outdoors during the springtime, and the removal of
Yellow sand dust has become an issue for suitable indoor conditions. An air cleaner is required to remove Yellow sand dust
efficiently to improve indoor air quality, and the removal characteristics of Yellow sand dust should be studied. The size
distribution and mass concentration of Yellow sand dust observed in China and Korea are analyzed, and the removal efficiency
of a plasma air cleaning system based on the principle of electrostatic precipitation is evaluated by using Yellow sand dust.
Mass median diameter of Yellow sand dust sampled in Beijing and Seoul ranges from 7.0 to 8.0 μm with a mass concentration
of 300-1,462 μg/m3. For a single-pass test, the efficiency of dust removal increases with increasing particle size and decreasing flow rate.
The removal efficiency of Yellow sand dust in a plasma air cleaning system at a face velocity of 1.0 m/s is higher than 80%.
For a multi-pass test in occupied spaces, the operation time required to reduce Yellow sand dust concentration from an initial
concentration of 300 μg/m3 to 150 μg/m3 is 10 minutes for a test room of 27 m3. |
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Keywords: | Yellow Sand Dust Plasma Air Cleaning System Single-pass Test Multi-pass Test |
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