Biomass
Biomass resources
By definition, each material which derives from natural resources can be considered as biomass. Thereby, in contrast to the common belief that biomass includes only crops and wood, organic waste and residues which come from animal or plants, such as manure, straw or sawdust, actually belong also to biomass.
Wood boilers for residential heating
Despite the fact that wood was the first fuel source for heating and reminds of traditional fireplaces, modern biomass burning residential heating systems are constructed and designed to increase combustion efficiency.
Main biomass-fired boiler specifications according to EN303-5 standard- part B.
The EN 303-5 standard not only describes constructional and operational requirements but also sets the acceptable emission limits at the flue gases.
Main biomass-fired boiler specifications according to EN303-5 standard- part A.
EN 303-5 standard has been set in order to define design, constructional, safety and operational requirements regarding solid fuel heating boilers. Under the category “solid fuels” biomass is included, too.
Increase in the energy utilization of solid biomass in Europe
The european Union Member states’ political resolve to develop the energy potential of solid biomass has started to pay off, as in 2010 there were clear signs that growth of primary energy production had quickened pace.
Alternative uses of the solid residue (ash) resulting from biomass combustion
Biomass ash is defined as the solid residue of biomass combustion of biomass feedstock so as to produce heat and electricity. In general, it contains plenty of macronutrients and micronutrients that are resistant to high temperatures.
Emissions from biomass pellets combustion in central heating systems
The use of woody-biomass pellets for heating buildings has significant advantages and therefore in several European countries the number of residential heating systems which consume biomass (including pellets) has grown significantly the field during the last decade.
European biomass pellets market – A Summary
According to PELLETS@LAS project (2008), a total amount of 8.064.000 tons of pellet utilized in Europe (EU-27 plus Norway, Switzerland), the equivalent of 35 GWh of energy produced comes from wood resources.
Biomass pellets market in Greece - Overview and Features
Ιn 2008, according to the European Program Pellets Atlas, Greece produced a total of about 27,800 tons of pellets, while the installed capacity amounted to 87,000 tonnes.
Significant biomass properties. Part 1: Moisture content
Biomass moisture content is defined as the amount of water in the biomass expressed as a percentage of the material’s weight. Moisture content has a significant effect on the engineering of the conversion process; either a thermochemical (i.e. combustion) process is considered or a biochemical (i.e. fermentation).
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