Particle Emissions from Pine Pellets Combustion in a Small-Scale Domestic Boiler

U. Fernandes & M. Costa
The main purpose of the present work was to quantify and characterize morphologically and chemically the emissions of particulate matter (PM) from a domestic pellet-fired boiler during steady-state operation for different boiler thermal inputs. The PM quantification was made with the aid of a low pressure three-stages cascade impactor and the PM characterization using SEM/EDS analysis (scanning electron microscope/energy dispersive X-ray spectrometry). The measured PM emissions varied between ˜ 160 mg/Nm3@13% O2 and ˜ 490...