LAPSE:2023.28792
Published Article
LAPSE:2023.28792
High Temperature Electrical Charger to Reduce Particulate Emissions from Small Biomass-Fired Boilers
April 12, 2023
Abstract
New particulate matter (PM) filtering technologies are needed to meet the emission regulations for small combustion appliances. In this work, we investigate the performance of a novel electrical particle filtration system, the single needle shielded corona charger (SCC), which offers an advantageous solution for PM control in boilers by enhancing particulate deposition within existing boiler sections. Experiments under different operating conditions of a wood-fired boiler were performed, wherein the SCC was installed upstream of either a condensing heat exchanger (CHX) or a cyclone. PM reduction was found to be strongly affected by the SCC temperature and the following collection surface area, and reached its highest reduction efficiency of >90% at the temperature range of 400−500 °C when operating in combination with a CHX. The SCC−cyclone combination was less efficient, providing a 27% PM reduction, as a result of the low surface area and residence time in the cyclone. These results indicate that the SCC can feasibly provide particle filtration when combined with a CHX, wet scrubber, or a cyclone to meet the new emission regulation requirements. The system is best suited for small-scale boilers but can be scaled up to larger boilers by increasing the number of corona chargers.
New particulate matter (PM) filtering technologies are needed to meet the emission regulations for small combustion appliances. In this work, we investigate the performance of a novel electrical particle filtration system, the single needle shielded corona charger (SCC), which offers an advantageous solution for PM control in boilers by enhancing particulate deposition within existing boiler sections. Experiments under different operating conditions of a wood-fired boiler were performed, wherein the SCC was installed upstream of either a condensing heat exchanger (CHX) or a cyclone. PM reduction was found to be strongly affected by the SCC temperature and the following collection surface area, and reached its highest reduction efficiency of >90% at the temperature range of 400−500 °C when operating in combination with a CHX. The SCC−cyclone combination was less efficient, providing a 27% PM reduction, as a result of the low surface area and residence time in the cyclone. These results indicate that the SCC can feasibly provide particle filtration when combined with a CHX, wet scrubber, or a cyclone to meet the new emission regulation requirements. The system is best suited for small-scale boilers but can be scaled up to larger boilers by increasing the number of corona chargers.
Record ID
Keywords
biomass combustion, electrical charging, particulate emissions
Subject
Suggested Citation
Suhonen H, Laitinen A, Kortelainen M, Yli-Pirilä P, Koponen H, Tiitta P, Ihalainen M, Jokiniemi J, Suvanto M, Tissari J, Kinnunen N, Sippula O. High Temperature Electrical Charger to Reduce Particulate Emissions from Small Biomass-Fired Boilers. (2023). LAPSE:2023.28792
Author Affiliations
Suhonen H: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland [ORCID]
Laitinen A: Aerosol Physics Laboratory, Physics Unit, Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland
Kortelainen M: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Yli-Pirilä P: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Koponen H: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Tiitta P: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland [ORCID]
Ihalainen M: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Jokiniemi J: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Suvanto M: Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland [ORCID]
Tissari J: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Kinnunen N: Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland [ORCID]
Sippula O: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland; Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu,
Laitinen A: Aerosol Physics Laboratory, Physics Unit, Faculty of Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland
Kortelainen M: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Yli-Pirilä P: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Koponen H: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Tiitta P: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland [ORCID]
Ihalainen M: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Jokiniemi J: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Suvanto M: Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland [ORCID]
Tissari J: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
Kinnunen N: Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland [ORCID]
Sippula O: Fine Particle and Aerosol Technology Laboratory, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland; Department of Chemistry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu,
Journal Name
Energies
Volume
14
Issue
1
Article Number
E109
Year
2020
Publication Date
2020-12-28
ISSN
1996-1073
Version Comments
Original Submission
Other Meta
PII: en14010109, Publication Type: Journal Article
Record Map
Published Article
LAPSE:2023.28792
This Record
External Link
https://doi.org/10.3390/en14010109
Publisher Version
Download
Meta
Record Statistics
Record Views
188
Version History
[v1] (Original Submission)
Apr 12, 2023
Verified by curator on
Apr 12, 2023
This Version Number
v1
Citations
Most Recent
This Version
URL Here
https://psecommunity.org/LAPSE:2023.28792
Record Owner
Auto Uploader for LAPSE
Links to Related Works
(0.21 seconds)