Feasibility of Ceiling-Mounted Assist Device of Air-Purifier for Removal of Airborne Allergic Pollen Grains

Toshiki Takahashi; Akinori Hashimoto; Shunsuke Tokoi; Makoto Goto

doi:10.4028/www.scientific.net/KEM.643.205

Paper Titles

Phase Noise Measurement and Testing with Delta-Sigma TDC
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Frequency Bandwidth Adjustment by Precision Post-Processing for a 0.78–0.95 THz Band SIS Mixer
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Frictional Characteristics Measurement of a Ceramic Aerostatic Linear Bearing
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Impact Response Measurement of Contact Lenses
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Surface Measurement by Digital Holography with New Unwrapping Method
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Prototype of Atomic Force Microscope with High Resolution Optical Microscope for Observing Magnetic Nanodot Arrays
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Computational Analysis of Heavy Ion-DNA Interaction Using Molecular Dynamics Method
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Simulation Study on Indoor Pollen Removal with Variable Exhaust Angle of an Air Purifier
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Feasibility of Ceiling-Mounted Assist Device of Air-Purifier for Removal of Airborne Allergic Pollen Grains
p.205

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Feasibility of Ceiling-Mounted Assist Device of Air-Purifier for Removal of Airborne Allergic Pollen Grains

Abstract:

Feasibility of a ceiling-mounted assist device of the air-purifier for removal of airborne allergenic pollen grains is investigated by both turbulent flow and particle-tracking calculations. The device is mounted straight above the air-purifier and it collects suspended pollen grains in the exhaust flow of the air-purifier. It is found from the turbulent flow calculation that the flow rate of the assist device should be larger than that of the air-purifier. Otherwise the upward air flows around the assist device, and pollen grains move along the surrounding flow; they are never removed from the air. We also found about 40% improvement of the pollen removal efficiency by installing the assist device.