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Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging
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 th...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693096/ https://www.ncbi.nlm.nih.gov/pubmed/36422893 http://dx.doi.org/10.3390/toxics10110686 |
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author | Kim, Ye-Sle Lee, Yeawan Kim, Yong-Jin Han, Bangwoo Kim, Hak-Joon |
author_facet | Kim, Ye-Sle Lee, Yeawan Kim, Yong-Jin Han, Bangwoo Kim, Hak-Joon |
author_sort | Kim, Ye-Sle |
collection | PubMed |
description | 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. |
format | Online Article Text |
id | pubmed-9693096 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96930962022-11-26 Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging Kim, Ye-Sle Lee, Yeawan Kim, Yong-Jin Han, Bangwoo Kim, Hak-Joon Toxics Article 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. MDPI 2022-11-12 /pmc/articles/PMC9693096/ /pubmed/36422893 http://dx.doi.org/10.3390/toxics10110686 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Kim, Ye-Sle Lee, Yeawan Kim, Yong-Jin Han, Bangwoo Kim, Hak-Joon Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging |
title | Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging |
title_full | Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging |
title_fullStr | Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging |
title_full_unstemmed | Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging |
title_short | Improvement of an In-Duct Two-Stage Electrostatic Precipitator via Diffusion Charging |
title_sort | improvement of an in-duct two-stage electrostatic precipitator via diffusion charging |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9693096/ https://www.ncbi.nlm.nih.gov/pubmed/36422893 http://dx.doi.org/10.3390/toxics10110686 |
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