Title:
Effects of the Length of Pellet on Combustion Efficiency in a Domestic Heating System
Author(s):
Gasperini, T., Toscano, G., Di Stefano, S., Assirelli, A.
Document(s):
Paper
Poster
Abstract:
Technical standard UNI EN ISO 17225-2 defines the quality classes of pellets through the definition of threshold values of physical, chemical and energetic parameters. Among physical ones, pellets length is not always considered as key quality indicator by manufacturers, even though it appears to have important impacts on combustion efficiency. The purpose of this preliminary work was to assess the influence of geometric parameters on combustion performance, emissions levels and mass flow rates. Combustion tests were carried out in a domestic heating system and utilizing samples which differ solely for geometric parameters. Results suggest an inversely proportional relationship between sample length and overall efficiency. Specifically, greater mean length values led to greater CO emissions and lower mass flow rates. It might be concluded that geometric parameters have an important role on pellets efficiency, therefore they should be given more consideration throughout the production process.
Keywords:
biofuels, combustion, efficiency, emissions, pellets
Topic:
Biomass Conversion for Bioenergy
Subtopic:
Biomass pretreatment for solid fuels and production of intermediates
Event:
31st European Biomass Conference and Exhibition
Session:
4DV.6.2
Pages:
777 - 780
ISBN:
978-88-89407-23-3
Paper DOI:
10.5071/31stEUBCE2023-4DV.6.2
Price:
FREE
