Abstract
An in-duct two-stage electrostatic precipitator (ESP) improved by ion diffusion effect was studied. We increased the collection efficiency of a two-stage electrostatic precipitator without additional energy input by adjusting the space arrangement of the charger and the collector, which increased the particle diffusion charging time. The collection efficiency and the particle charge were systematically investigated according to the occurrence of diffusion charging and electric field charging in the charger as generated by the negative ions. The collection efficiency of the separated two-stage ESP was 39% higher, on average, than the theoretical efficiency at the same power consumption. Through simulation, it was verified that the ions generated in the carbon fiber ionizer penetrated the charger. We proposed a modified charging mechanism assuming that the penetrated ions cause additional particle charge. The optimal separation distance between the charger and the collector, which showed the maximum collection efficiency, was derived through the modified charging model. Therefore, the in-duct two-stage ESP developed in this study is a promising energy-efficient and cost-saving design for indoor air management.
Funder
Korea Agency for Infrastructure Technology Advancement (KAIA) and the Ministry of Land, Infrastructure, and Transport (MOLIT) of the Republic of Korea
Subject
Chemical Health and Safety,Health, Toxicology and Mutagenesis,Toxicology
Reference35 articles.
1. Energy consumption, indoor thermal comfort and air quality in a commercial office with retrofitted heat, ventilation and air conditioning (HVAC) system;Energy Build.,2019
2. Achieving better energy-efficient air conditioning—A review of technologies and strategies;Appl. Energy,2013
3. Braun, K., Eaves, E., Giambri, C., Chapman, D., Heavner, H., Woodward, J., Nagel, J., and Gipson, K. (2016, January 26–29). Reducing electrical energy consumption of AHU fans through the integration of variable frequency drives. Proceedings of the 2016 IEEE Systems and Information Engineering Design Symposium (SIEDS), Charlottesville, VA, USA.
4. The relationship between filter pressure drop, indoor air quality, and energy consumption in rooftop HVAC units;Build. Environ.,2014
5. Moisture Effect on Particulate Matter Filtration Performance using Electro-Spun Nanofibers including Density Functional Theory Analysis;Sci. Rep.,2019
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