Emissions from residential combustion of certified and uncertified pellets

E.D. Vicente, A.M. Vicente, M. Evtyugina, L.A.C. Tarelho, S.M. Almeida and C. Alves

Renewable Energy, 2020, vol. 161, issue C, 1059-1071

Abstract: The aim of the present study was to evaluate the relationship between fuel certification and gaseous and PM10 emissions and their composition. Two pellets labelled as ENplus A1 (certified pellets R and P) and a non-certified brand of pellets were tested in a pellet stove. The impact of operating conditions on emissions was also evaluated. The highest carbon monoxide (CO, 2.7–6.1-fold) and total organic carbon (TOC, 1.9–11-fold) emissions were observed for certified pellets R. Nitrogen oxide (NO) emissions were higher for non-certified pellets (2.5–3.2-fold). The compliance of gaseous emissions with the Ecodesign thresholds was not ensured by certification. Certified pellets P generated significantly lower PM10 emissions than the other two types of pellets at medium and nominal loads. Water-soluble ions represented from 36 to 68 %wt. of the PM10 mass. The combustion of certified pellets P and non-certified pellets generated total carbon PM10 mass fractions ranging from 23 to 50 %wt., whereas pellets R resulted in lower mass fractions (7–14 %wt. PM10). The chromatographically resolved organic compounds were dominated by anhydrosugars and alkanols. Pyrene and retene were the most abundant among polyaromatic hydrocarbons.

Keywords: Certified pellets; Chemical composition; Gaseous emissions; Non-certified pellets; Pellet stove; PM10 emissions (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:161:y:2020:i:c:p:1059-1071

DOI: 10.1016/j.renene.2020.07.118

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