Particle and Aerosol Research
Vol. 13, No. 1, March 2017, Pages 11-16
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ISSN : 1738-8716 (Print)
ISSN : 2287-8130 (Online)
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Comparison of discharging electrodes for the electrostatic
precipitator as an air filtration system in air handling units
Dongho Shin1), Chang Gyu Woo1), Hak-Joon Kim1), Yong-Jin Kim1), Bangwoo Han*1)
1)Environmental and Energy Systems Research Division, Korea Institute of Machinery & Materials
*Corresponding author.
Tel.: +82-42-868-7068, E-mail: bhan@kimm.re.kr
Received 02 March 2017, Revised 14 March 2017, Accepted 15 March 2017
http://dx.doi.org/10.11629/jpaar.2017.3.31.011
Abstracts
Indoor air quality is of increasing concern because it is closely related human health. An air handling unit (AHU)
can be used to control the indoor air quality related to particulate matters and CO2 as well as air conditioning such
as temperature and humidity of indoor air. An electrostatic precipitator has a high collection efficiency and low
pressure drop, however, ozone can possibly generate from its chargers, which is one of drawbacks to apply it for
indoor air control. Here we compared four charging electrodes such as a 50 § tungsten wire, a 100 § tungsten
wire, a 16 §-thickness Al foil and a carbon fabric comprised of 5-10 § fibers. The carbon fabric electrode
showed a superior particle collection efficiency and a lower ozone generation at a given power consumption
compared to tungsten wires of 50, 100 § and an Al foil electrode. This low ozone generating, micro-sized
electrode can be applied to the electrostatic precipitator in AHU for indoor air control.
Keywords
carbon fabric, electrode, ozone, air handling unit
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