Obtaining Emission Factors for PM_(2.5), gases and particles size distribution generated from the combustion of Eucalyptus globulus and Nothofagus obliqua on ideal conditions using a controlled combustion chamber 3CE

摘要

Combustion tests were performed using a controlled combustion chamber 3CE, which allows reproducible and close to ideal combustion conditions. This equipment has the potential to become standard procedure for this type of combustion analysis. Combustion tests were realized at controlled, reproducible and repeatable conditions. PM_(2,5) analysis were performed using 4 sampling cartridges and determined by gravimetric analysis and online with aerosol laser spectrometer as quality control. High reproducibility was achieved between filters and tests (% CV ＜10%). Tor Eucalyptus globulus an average EF_(PM2.5) of 2.01 ± 0.20 g Kg~(-1) (n = 12) was observed, while Nothofagus obliqua showed an average EF_(PM2.5) of 2.37 ± 0.35 g Kg~(-1) (n = 12), both significantly different from each other (95% confidence). Those EF are lower than those observed in literature maybe due to the transient combustion and close to ideal conditions in which the tests were performed by the use of 3CE. Particles size distribution obtained with laser aerosol spectrometer showed that Eucalyptus globulus and Nothofagus obliqua have similar profiles with most part of the particles below 1 μm, but only Nothofagus obliqua showed particles between 8 and 10 μm, besides, the use of online detection equipment like aerosol laser spectrometer allows to observe emissions of each step of the combustion process separately.