Pellets - a viable alternative to conventional fuels
27.02.2017
One way of replacing conventional fuels is to use the wood pellets. They are dehydrated and compressed chips that have up to twice the density of undried green wood. The pellet has a high calorific power, high density and relatively low transportation costs.
Pellet's features:
- Diameter: 3-15 mm (cei mai folositi sunt peletii cu diametrul de 6mm)
- Lenghth: < 60mm>
- Bulk weight: ~650 kg/mc
- Density: >1200 kg/mc
- Humidity: < 8>
- Ash: < 1>
- Caloric power: 3500÷4500 kcal/kg
The pellets do not require large storage spaces and are more efficient than wood in terms of combustion efficiency and heat output.
What are the advantages of wood pellets?
They represent a form of green fuel, derived from wood waste;
It is a clean energy source, a modern and affordable one;
They have a very high autonomy. Depending on the pellets’ deposit and the boiler’s automation degree, the autonomy may be from one to two months;
Since pellet heating heaters are considered ecological, they can be purchased through the GREEN HOUSE project;
Production of pellets is based on the use of wood waste. This way a cleaning of the natural environment is done while recycling those materials that are dangerous for the soil;
The pellets are neutral in terms of carbon emissions. When burned, they release about the same amount of CO2 (carbon dioxide) as the wood absorbed during its growth;
The emission of smoke resulting from burning pellets is a very low one;
The dust from gas flue is alkaline;
The pellets have low metal content and sulfides are almost nonexistent;
The ash that results after burning this fuel can then be used as natural fertilizer as it is rich in minerals;
The operational cost of pellets is lower than the use of fossil fuels;
Compared to firewood, pellets are more efficient in terms of combustion efficiency, calorific value, comfort and safety in use;
Compared to a conventional gas boilers, a central heating pellet needs 20% to 30% lower costs for the same thermal power generation;
The operational costs of a pellet heater are rather comparable to those of a gas powered and condensing heater;
In addition, pellets require relatively little storage space. 1 tone of pellets fall into a volume of about 1200 to 1500 liters / 1.2-1.5 m3.
