Journal article
New electrostatic precipitator with dielectric coatings to efficiently and safely remove sub-micro particles in the building environment
Sustainable cities and society, Vol.55, p.102063
04/01/2020
DOI: 10.1016/j.scs.2020.102063
Abstract
The influx of ambient particulate matter (PM) to the indoor environment has threatened human health due to its adverse impacts on respiratory, cardiovascular, and neurological systems. Consequently, PM removal devices with high efficiency and low cost like electrostatic precipitator (ESP) are essential for a healthy and sustainable indoor environment. Traditional two-staged ESP includes particle charging and collection part. In this study, we innovated the collection part by coating the repelling electrodes with dielectric films. Four performance influencing parameters were examined: the voltage difference (V-c) and distance (d(c)) between the repelling and collecting electrodes, and both the dielectric material and thickness (d(e)). The new ESP achieved its best performance when coated with PET (d(e) =60 mu m) at d(c) =3 mm. The breakdown voltage was promoted from -4 kV (without dielectric film) to -9 kV, and PM removal efficiency was enhanced from 60 % to 92 %. The new ESP had low net ozone production (3-5 ppb), low pressure drop (10-13 Pa), and low energy consumption (18 W/m(2)), making it an eco-friendly device. Running continuously for one week, the new ESP maintained a single-pass PM removal efficiency of around 90 %, notwithstanding changes in ambient air temperature and relative humidity.
Details
- Title: Subtitle
- New electrostatic precipitator with dielectric coatings to efficiently and safely remove sub-micro particles in the building environment
- Creators
- Jinhan Mo - State Key Laboratory of Building Safety and Built EnvironmentEnze Tian - State Key Laboratory of Building Safety and Built EnvironmentJin Pan - Tsinghua University
- Resource Type
- Journal article
- Publication Details
- Sustainable cities and society, Vol.55, p.102063
- Publisher
- Elsevier
- DOI
- 10.1016/j.scs.2020.102063
- ISSN
- 2210-6707
- eISSN
- 2210-6715
- Number of pages
- 6
- Grant note
- 2016YFC0207103 / National Key Research and Development Program of China; National Key Research & Development Program of China 51722807; 51521005 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC)
- Language
- English
- Date published
- 04/01/2020
- Academic Unit
- Occupational and Environmental Health
- Record Identifier
- 9984787258802771
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