Abstract
Biomass combustion is the first renewable energy in the world. Nevertheless, its particles emissions are denounced. Nowadays, one of the most efficient second abatement emissions systems (SAES) for the particles consists of fabric filter. Nevertheless, this high trapping efficiency system is often bypassed due to condensation or burning issues. Small to medium-scale biomass combustion equipment are becoming an attractive non-fossil local and renewable energy means of production. Nevertheless, they remain poorly equipped with SAES because of their variable power output and subsequent condensation issues. This work presents an optimization of the working temperature range for fabric filter in order to produce a cleaner energy. The present study clearly demonstrates that the dew point temperature of the smoke, for any combustion conditions and any fuels, is always higher than 70 °C while the safety temperature of the fabric classically is 110 °C. Experimentations show condensation issues occur only during power change. The simulation of the optimization on the temperature range shows that the Total Suspended Particles emissions can be reduced by 55% (mass fractions) for the same energy production.
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