engleski

New design solutions for domestic biomass-fuel burning appliances

In the past decade alternative energy resources receive great attention due to the growing awareness of greenhouse gas emission and the decline of fossil fuel reserves. Currently, biomass energy, when implemented appropriately has the biggest potential to offer cost- effective alternative to fossil fuels. Increasingly stringent environmental requirements of the EU set in the Ecodesign Directive 2009/125/EC, especially in terms of pollutant emissions (CO, CxHy, NOx, dust), require new design concepts for residential solid-fuel heating appliances. Emissions are becoming even greater problem if instead of conventional biomass various residues from agricultural production or energy crops are used, which are becoming more desirable fuel due to drop in oil and gas prices. These, so- called low-quality biomass usually cause ash related problems and higher dioxin emissions if combustion takes place in conventional wood combustion system. In this paper the novel modifications of a conventional small combustion system are proposed, as the well known methodologies for combustion and emissions control applied in industrial boilers are in most cases not suitable for small-scale combustion units.

Agricultural biomass combustion, pollutant emissions, ash related problems, dioxin emission

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