Experimental Study of the Performance of a Laboratory-Scale ESP with Biomass Combustion: Discharge Electrode Disposition, Dynamic Control Unit and Aging Effect

Natalia Cid, Juan Jesús Rico, Raquel Pérez-Orozco and Ana Larrañaga
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Natalia Cid: CINTECX, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
Juan Jesús Rico: CINTECX, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
Raquel Pérez-Orozco: CINTECX, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain
Ana Larrañaga: CINTECX, University of Vigo, Lagoas-Marcosende s/n, 36310 Vigo, Spain

Sustainability, 2021, vol. 13, issue 18, 1-12

Abstract: The increasing use of biomass combustion systems as household appliances for heat generation is causing concern about local air quality. Areas with high concentrations of particulate matter (PM) emissions are linked to health risks. There is a need for a removal device that collects the particles before they reach the atmosphere. Electrostatic precipitators (ESPs) are the most suitable option. In this study, a laboratory-scale prototype ESP was tested with a pellet boiler. Retention efficiencies above 90% were obtained with three different discharge electrode dispositions. The continuous operation of the ESP was achieved with a dynamic control system despite fluctuations in emissions, gas conditions, etc. The accumulation of particles on inner ESP surfaces over the operation time reduced the effectiveness of the electric field, and thus retention efficiency. In this study, the retention efficiency fell from 90% to 31% in 34 h.

Keywords: biomass combustion; electrostatic precipitator; particulate matter; pollution control; small-scale (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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